{"id":228,"date":"2023-07-05T17:07:51","date_gmt":"2023-07-05T09:07:51","guid":{"rendered":"https:\/\/www.siproin-ic.com\/healthy-eating-habits-for-a-better-life-copy\/"},"modified":"2024-09-03T16:13:59","modified_gmt":"2024-09-03T08:13:59","slug":"selection-application-reference-for-ldo-voltage-regulator-chip","status":"publish","type":"post","link":"https:\/\/www.siproin-ic.com\/tr\/selection-application-reference-for-ldo-voltage-regulator-chip\/","title":{"rendered":"LDO voltaj reg\u00fclat\u00f6r\u00fc \u00e7ipi i\u00e7in se\u00e7im uygulama referans\u0131"},"content":{"rendered":"<p>Elektronik tasar\u0131m s\u0131ras\u0131nda, devrenin \u00e7al\u0131\u015fmas\u0131n\u0131 sa\u011flamak i\u00e7in her zaman farkl\u0131 DC gerilimlerine ihtiya\u00e7 duyar\u0131z. En yayg\u0131n kullan\u0131lan\u0131, farkl\u0131 DC gerilimlerinin \u00e7\u0131k\u0131\u015f\u0131n\u0131 elde etmek i\u00e7in LDO voltaj reg\u00fclat\u00f6r \u00e7iplerini kullanmakt\u0131r. Bu y\u00fczden uygun bir LDO'nun nas\u0131l se\u00e7ilece\u011fi \u00f6zellikle \u00f6nemlidir. Bir\u00e7ok m\u00fchendis ilerlemeyi se\u00e7erken, yaln\u0131zca \u00e7\u0131k\u0131\u015f voltaj\u0131 ve ak\u0131m\u0131n iki g\u00f6stergesine g\u00f6re se\u00e7im yapar, ancak di\u011fer baz\u0131 \u00f6nemli teknik g\u00f6stergeleri g\u00f6z ard\u0131 ederek se\u00e7ilen LDO'nun en iyi se\u00e7im olmamas\u0131na neden olur. LDO'nun \u00e7al\u0131\u015fma prensibi ve birka\u00e7 \u00f6nemli teknik g\u00f6sterge hakk\u0131nda bilgi edinelim.<\/p>\n<p><strong><b>Prensip <\/b><\/strong><strong><b>I<\/b><\/strong><strong><b>G\u0130R\u0130\u015e<\/b><\/strong><\/p>\n<p>LDO \uff0c D\u00fc\u015f\u00fck D\u00fc\u015f\u00fc\u015f Reg\u00fclat\u00f6r\u00fc olarak bilinir, Do\u011frusal g\u00fc\u00e7 kayna\u011f\u0131na aittir. Uygulama nispeten az say\u0131da harici bile\u015fen gerektirir. \u00c7o\u011fu LDO modelinin yaln\u0131zca giri\u015f ucuna ve \u00e7\u0131k\u0131\u015f ucuna bir filtre kondansat\u00f6r\u00fc ba\u011flamas\u0131 gerekir. A\u015fa\u011f\u0131da g\u00f6sterildi\u011fi gibi \uff1a<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone wp-image-475\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u72471-1.png\" alt=\"\" width=\"416\" height=\"152\" \/><\/p>\n<p>\u0130\u00e7 yap\u0131s\u0131 a\u015fa\u011f\u0131daki \u015fekilde g\u00f6sterilmi\u015ftir\uff1a<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone wp-image-476\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u72472.png\" alt=\"\" width=\"475\" height=\"308\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u72472.png 765w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u72472-300x195.png 300w\" sizes=\"(max-width: 475px) 100vw, 475px\" \/><\/p>\n<p>\u015eematik diyagramdan LDO'nun esas olarak PMOS, hata amplifikat\u00f6r\u00fc, geri besleme direnci ve baz referans voltaj\u0131ndan olu\u015ftu\u011funu bilebiliriz.LDO ana \u00e7al\u0131\u015fma s\u00fcreci, \u00e7\u0131k\u0131\u015f voltaj\u0131n\u0131 bir voltaj b\u00f6lme direnci arac\u0131l\u0131\u011f\u0131yla b\u00f6lmek, baz referans voltaj\u0131 ile kar\u015f\u0131la\u015ft\u0131rmak ve dinamik \u00e7\u0131k\u0131\u015f voltaj\u0131 stabilizasyonu ger\u00e7ekle\u015ftirmek i\u00e7in PMOS t\u00fcp\u00fcn\u00fcn iletim voltaj d\u00fc\u015f\u00fc\u015f\u00fcn\u00fc op amp \u00e7\u0131k\u0131\u015f\u0131 \u00fczerinden ayarlamakt\u0131r.<\/p>\n<p><strong><b>Se\u00e7im parametreleri<\/b><\/strong><\/p>\n<ul>\n<li><b><\/b><strong><b>Giri\u015f Gerilimi<\/b><\/strong><\/li>\n<\/ul>\n<p>Giri\u015f gerilimi, giri\u015f terminaline girilebilen \u00e7al\u0131\u015fma gerilimi aral\u0131\u011f\u0131n\u0131 ifade eder. Giri\u015f voltaj\u0131 5V ise, se\u00e7im yaparken yakla\u015f\u0131k 10V dayan\u0131m voltaj\u0131na sahip bir LDO se\u00e7meliyiz. Genel olarak, giri\u015f gerilimi aral\u0131\u011f\u0131n\u0131n normal giri\u015f geriliminin iki kat\u0131ndan fazla olmas\u0131 \u00f6nerilir.<\/p>\n<ul>\n<li><b><\/b><strong><b>Vout<\/b><\/strong><\/li>\n<\/ul>\n<p>\u00c7\u0131k\u0131\u015f voltaj\u0131 bir LDO'nun en \u00f6nemli parametresidir ve ayn\u0131 zamanda elektronik ekipman tasar\u0131mc\u0131lar\u0131n\u0131n bir voltaj reg\u00fclat\u00f6r\u00fc se\u00e7erken g\u00f6z \u00f6n\u00fcnde bulundurmalar\u0131 gereken ilk parametredir. LDO'lar sabit \u00e7\u0131k\u0131\u015f voltajl\u0131 ve ayarlanabilir \u00e7\u0131k\u0131\u015f voltajl\u0131 tiplerde mevcuttur. Sabit \u00e7\u0131k\u0131\u015f voltajl\u0131 reg\u00fclat\u00f6rlerin kullan\u0131m\u0131 daha kolayd\u0131r ve \u00e7\u0131k\u0131\u015f voltaj\u0131 \u00fcretici taraf\u0131ndan hassas bir \u015fekilde ayarland\u0131\u011f\u0131 i\u00e7in reg\u00fclat\u00f6r y\u00fcksek do\u011frulu\u011fa sahiptir. Bununla birlikte, ayarlad\u0131\u011f\u0131 \u00e7\u0131k\u0131\u015f voltaj\u0131 de\u011ferleri, t\u00fcm uygulama gereksinimlerini kar\u015f\u0131layamayan ortak voltaj de\u011ferleridir. Ayarlanabilir \u00e7\u0131k\u0131\u015fl\u0131 LDO'nun \u00e7\u0131k\u0131\u015f do\u011frulu\u011fu, harici bile\u015fenlerin do\u011frulu\u011fundan ve s\u0131cakl\u0131k de\u011fi\u015fimlerinden etkilenir.<\/p>\n<ul>\n<li><b><\/b><strong><b>Maksimum Ak\u0131m<\/b><\/strong><\/li>\n<\/ul>\n<p>\u00c7\u0131k\u0131\u015f terminalinin maksimum \u00e7\u0131k\u0131\u015f ak\u0131m de\u011feridir. Burada normal \u00e7al\u0131\u015fma s\u0131ras\u0131ndaki ortalama ve tepe ak\u0131mlar\u0131 dikkate al\u0131nmal\u0131d\u0131r. Esas olarak LDO'nun gerekli tepe ak\u0131m\u0131n\u0131 k\u0131sa s\u00fcrede sa\u011flay\u0131p sa\u011flayamayaca\u011f\u0131na ba\u011fl\u0131d\u0131r.<\/p>\n<ul>\n<li><b><\/b><strong><b>P<\/b><\/strong><strong><b>d<\/b><\/strong><\/li>\n<\/ul>\n<p>LDO Da\u011f\u0131t\u0131lan g\u00fc\u00e7 i\u00e7in basit form\u00fcl PD=\uff08Vin-Vout\uff09*Iout\uff0cGiri\u015f voltaj\u0131 Vin=12V\uff0c\u00c7\u0131k\u0131\u015f voltaj\u0131 Vout=3.6V\uff0c\u00c7\u0131k\u0131\u015f ak\u0131m\u0131 Iout=180mA oldu\u011funu varsayal\u0131m, o zaman LDO Da\u011f\u0131t\u0131lan g\u00fc\u00e7 PD=1.512W\uff0cT\u00fcm bu g\u00fc\u00e7 t\u00fcketimi \u0131s\u0131 kayb\u0131ndan kaynaklan\u0131r, bu nedenle LDO'nun giri\u015f ve \u00e7\u0131k\u0131\u015f voltaj fark\u0131n\u0131n \u00e7ok b\u00fcy\u00fck ve \u00e7\u0131k\u0131\u015f ak\u0131m\u0131n\u0131n b\u00fcy\u00fck oldu\u011fu senaryolarda kullan\u0131lmas\u0131 \u00f6nerilmez.<\/p>\n<p>Ger\u00e7ekten kullanmam\u0131z gerekiyorsa, LDO \u00e7ipinin ne kadar g\u00fc\u00e7 t\u00fcketimine dayanabilece\u011fini d\u00fc\u015f\u00fcnmeliyiz. Ayr\u0131nt\u0131lar i\u00e7in l\u00fctfen \u00e7ip k\u0131lavuzunda verilen verilere bak\u0131n.<\/p>\n<p>\u00d6rnek olarak SSP7903'\u00fc ele alal\u0131m. A\u015fa\u011f\u0131daki \u015fekil farkl\u0131 paketlerin maksimum g\u00fc\u00e7 da\u011f\u0131l\u0131m\u0131n\u0131 g\u00f6stermektedir. Bu maksimum g\u00fc\u00e7 da\u011f\u0131l\u0131m\u0131, \u00e7ipin dayanabilece\u011fi maksimum termal g\u00fc\u00e7 t\u00fcketimidir. Bunu a\u015farsa, yanacakt\u0131r. Ayn\u0131 zamanda, maksimum s\u0131n\u0131r de\u011ferinde uzun s\u00fcre kullan\u0131lmamas\u0131n\u0131 tavsiye ederiz.<\/p>\n<table style=\"width: 49.8867%;\">\n<tbody>\n<tr>\n<td style=\"width: 36.4003%;\" width=\"220\">Yay\u0131lan g\u00fc\u00e7 PD<\/td>\n<td style=\"width: 37.8595%;\" width=\"259\">SOT89 1000<\/p>\n<p>SOT223 1500<\/p>\n<p>TO252 1800<\/td>\n<td style=\"width: 30.6375%; text-align: center;\" width=\"160\">mW<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Yukar\u0131daki tipik paket g\u00fcc\u00fc da\u011f\u0131t\u0131r, bu nedenle alttaki TO 252 paketini se\u00e7ece\u011fiz. Tasar\u0131m yaparken bir marj olmal\u0131d\u0131r. LDO \u00e7ipini yakmamak i\u00e7in \u0131s\u0131 yayma pedini art\u0131rabilir veya s\u0131cakl\u0131\u011fa ula\u015fmak ve g\u00fcc\u00fc art\u0131rmak i\u00e7in bir so\u011futucu ekleyebilirsiniz.<\/p>\n<ul>\n<li><b><\/b><strong><b>B\u0131rakma Gerilimi<\/b><\/strong><\/li>\n<\/ul>\n<p>Vdrop=Vin-Vout\uff0cGiri\u015f gerilimi ile \u00e7\u0131k\u0131\u015f gerilimi aras\u0131ndaki fark olarak tan\u0131mlan\u0131r\u3002LDO farkl\u0131 y\u00fck ak\u0131mlar\u0131 alt\u0131nda farkl\u0131 gerilim farklar\u0131na sahiptir. A\u015fa\u011f\u0131daki \u015fekil \u00e7\u0131k\u0131\u015f ak\u0131m\u0131 ve gerilim fark\u0131 aras\u0131ndaki ili\u015fki e\u011frisidir. \u00c7\u0131k\u0131\u015f ak\u0131m\u0131 ne kadar k\u00fc\u00e7\u00fckse, voltaj fark\u0131n\u0131n o kadar k\u00fc\u00e7\u00fck oldu\u011fu g\u00f6r\u00fclebilir. Giri\u015f gerilimi ne kadar d\u00fc\u015f\u00fck olursa, g\u00fc\u00e7 kayb\u0131 da o kadar d\u00fc\u015f\u00fck olur ve verimlilik artar. Ger\u00e7ek uygulama s\u0131ras\u0131nda, giri\u015f voltaj\u0131 ile \u00e7\u0131k\u0131\u015f voltaj\u0131 aras\u0131ndaki voltaj fark\u0131 \u00e7ok k\u00fc\u00e7\u00fckse, ancak belirli bir ak\u0131m\u0131n (100mA) \u00e7\u0131kmas\u0131 gerekiyorsa, normal \u00e7\u0131k\u0131\u015f\u0131 sa\u011flamak i\u00e7in uygun bir LDO se\u00e7ilmelidir.<\/p>\n<p>\u00d6rne\u011fin, bir 78L05'in voltaj fark\u0131 yakla\u015f\u0131k 2V iken, H7550-H'nin voltaj fark\u0131 sadece yakla\u015f\u0131k 600mV'dir. Tabii ki, sadece H7550-H se\u00e7ilerek \u00e7\u0131k\u0131\u015f\u0131n normal olmas\u0131 garanti edilebilir. Ayn\u0131 zamanda, \u00e7ipin g\u00fc\u00e7 da\u011f\u0131t\u0131m\u0131 \u00e7ok daha k\u00fc\u00e7\u00fck olacak ve performans daha iyi olacakt\u0131r.<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone wp-image-477\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u72473.png\" alt=\"\" width=\"457\" height=\"324\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u72473.png 563w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u72473-300x213.png 300w\" sizes=\"(max-width: 457px) 100vw, 457px\" \/><\/p>\n<ul>\n<li><b><\/b><strong><b>Iq<\/b><\/strong><\/li>\n<\/ul>\n<p>Iq=Iin-Iout\uff0cHarici y\u00fck ak\u0131m\u0131 0 oldu\u011funda LDO dahili devresine g\u00fc\u00e7 sa\u011flamak i\u00e7in gereken ak\u0131m olarak tan\u0131mlan\u0131r. \u00c7o\u011fu MOS yap\u0131l\u0131 LDO'nun Iq'su \u00e7ok k\u00fc\u00e7\u00fckt\u00fcr, bu da d\u00fc\u015f\u00fck y\u00fck ko\u015fullar\u0131nda LDO'nun kendi t\u00fcketimini \u00f6l\u00e7mek i\u00e7in \u00f6nemli bir g\u00f6stergedir. Iq ne kadar k\u00fc\u00e7\u00fckse o kadar iyidir.<\/p>\n<ul>\n<li><b><\/b><strong><b>Y\u00fck Ge\u00e7ici Tepkisi<\/b><\/strong><\/li>\n<\/ul>\n<p>Y\u00fck ak\u0131m\u0131ndaki ani de\u011fi\u015fikliklerin neden oldu\u011fu \u00e7\u0131k\u0131\u015f gerilimindeki maksimum de\u011fi\u015fikli\u011fi temsil eder. \u00c7\u0131k\u0131\u015f kapasitans\u0131n\u0131n, e\u015fde\u011fer seri direncinin ve bypass kapasitans\u0131n\u0131n bir fonksiyonudur. \u00c7\u0131k\u0131\u015f kapasit\u00f6r\u00fcn\u00fcn i\u015flevi, y\u00fck ge\u00e7ici yan\u0131t kapasitesini geli\u015ftirmek ve ayn\u0131 zamanda y\u00fcksek frekansl\u0131 bir baypas g\u00f6revi g\u00f6rmektir.<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone wp-image-478\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u72474.png\" alt=\"\" width=\"593\" height=\"365\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u72474.png 1024w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u72474-300x185.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u72474-768x473.png 768w\" sizes=\"(max-width: 593px) 100vw, 593px\" \/><\/p>\n<ul>\n<li><b><\/b><strong><b>G\u00fc\u00e7 A\u00e7ma<\/b><\/strong><\/li>\n<\/ul>\n<p>G\u00fc\u00e7 a\u00e7ma an\u0131nda belirli bir y\u00fck uyguland\u0131\u011f\u0131nda, \u00e7\u0131k\u0131\u015f terminalindeki voltaj\u0131n do\u011fruluk aral\u0131\u011f\u0131n\u0131 a\u015fmas\u0131 olgusunu ifade eder. Bu ayn\u0131 zamanda bir\u00e7ok ki\u015finin g\u00f6z ard\u0131 etti\u011fi bir noktad\u0131r. A\u015fma de\u011feri b\u00fcy\u00fckse, sonraki devre bile\u015fenlerini etkileyebilir, hatta zarar verebilir ve devre kart\u0131 ar\u0131zas\u0131na neden olabilir.<\/p>\n<p>&nbsp;<\/p>\n<p>Bu, belirli bir web sitesinden sat\u0131n al\u0131nan bir LDO \u00e7ipidir. Giri\u015f voltaj\u0131 7V, y\u00fck 10mA ve \u00e7\u0131k\u0131\u015f voltaj\u0131 5V'dur. G\u00fc\u00e7 a\u00e7ma dalga formu ve voltaj anahtarlama dalga formu a\u015fa\u011f\u0131daki gibidir:<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone wp-image-479 size-medium\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u72475-300x185.png\" alt=\"\" width=\"300\" height=\"185\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u72475-300x185.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u72475-768x473.png 768w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u72475.png 1024w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-medium wp-image-480\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u72476-300x185.png\" alt=\"\" width=\"300\" height=\"185\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u72476-300x185.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u72476-768x473.png 768w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u72476.png 1024w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>G\u00fc\u00e7 a\u00e7ma anl\u0131k dalga bi\u00e7imi Gerilim anahtarlama dalga bi\u00e7imi (7V ila 10V anahtarlama)<\/p>\n<p>\u00c7ip a\u00e7\u0131ld\u0131\u011f\u0131nda maksimum de\u011fer 6,816V'a ula\u015f\u0131r, 263 ms s\u00fcrer ve 36%'den fazlad\u0131r. Voltaj de\u011fi\u015ftirildi\u011finde, maksimum de\u011fer 6.225V'a ula\u015f\u0131r, 1ms s\u00fcrer ve 24%'den fazla a\u015far. Bu 5V mikrodenetleyiciler i\u00e7in b\u00fcy\u00fck bir hasard\u0131r ve sonraki \u00e7ipe y\u00fcksek olas\u0131l\u0131kla zarar verecektir.<\/p>\n<p>SSP7903 daha \u00f6nce 5,6V giri\u015f gerilimine, 10mA y\u00fcke ve 3,6V \u00e7\u0131k\u0131\u015fa sahipti. G\u00fc\u00e7 a\u00e7ma ve voltaj de\u011fi\u015ftirme s\u0131ras\u0131nda a\u015f\u0131m yoktur\u3002<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-medium wp-image-481\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u72477-300x185.png\" alt=\"\" width=\"300\" height=\"185\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u72477-300x185.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u72477.png 514w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-medium wp-image-482\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u72478-300x185.png\" alt=\"\" width=\"300\" height=\"185\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u72478-300x185.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u72478.png 528w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>G\u00fc\u00e7 a\u00e7ma anl\u0131k dalga bi\u00e7imi Gerilim anahtarlama dalga bi\u00e7imi (5,6V ila 15V anahtarlama)<\/p>\n<ul>\n<li><b><\/b><strong><b>P<\/b><\/strong><strong><b>ower besleme reddetme oran\u0131\uff08PSRR\uff09<\/b><\/strong><\/li>\n<\/ul>\n<p>G\u00fc\u00e7 kayna\u011f\u0131 dalgalanma reddetme oran\u0131, giri\u015f voltaj\u0131 g\u00fcr\u00fclt\u00fc dalgalanmas\u0131n\u0131n (dalgalanma) \u00e7\u0131k\u0131\u015f voltaj\u0131 g\u00fcr\u00fclt\u00fc dalgalanmas\u0131na (dalgalanma) oran\u0131d\u0131r ve genellikle desibel (dB)\uff0c cinsinden ifade edilir.<\/p>\n<p>Form\u00fcl \u015fu \u015fekildedir <img decoding=\"async\" loading=\"lazy\" class=\"alignnone wp-image-484\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/20240704-153829-1-300x74.jpg\" alt=\"\" width=\"199\" height=\"49\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/20240704-153829-1-300x74.jpg 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/20240704-153829-1.jpg 367w\" sizes=\"(max-width: 199px) 100vw, 199px\" \/>\uff0c LDO'nun Vin \u00fczerindeki g\u00fcr\u00fclt\u00fcy\u00fc bast\u0131rma yetene\u011fi olarak tan\u0131mlan\u0131r.<\/p>\n<p>PSRR de\u011feri ne kadar b\u00fcy\u00fck olursa, dalgalanma bast\u0131rma kabiliyeti o kadar iyi olur.<\/p>\n<ul>\n<li><b><\/b><strong><b>G\u00fcr\u00fclt\u00fc<\/b><\/strong><\/li>\n<\/ul>\n<p>PSRR'den farkl\u0131 olarak g\u00fcr\u00fclt\u00fc, LDO'nun kendisi taraf\u0131ndan \u00fcretilen g\u00fcr\u00fclt\u00fc sinyalini ifade eder. D\u00fc\u015f\u00fck g\u00fcr\u00fclt\u00fcl\u00fc bir LDO voltaj reg\u00fclat\u00f6r\u00fc \u00e7ipi, LDO taraf\u0131ndan \u00fcretilen ek g\u00fcr\u00fclt\u00fcy\u00fc etkili bir \u015fekilde azaltabilir. \u00c7\u0131k\u0131\u015f gerilimi daha saft\u0131r. Hesaplanan g\u00fcr\u00fclt\u00fc de\u011feri genellikle etkin de\u011ferdir (rms). Analiz etmek i\u00e7in tepeden tepeye de\u011ferini de kullanabilirsiniz.<\/p>\n<ul>\n<li><b><\/b><strong><b>\u00c7\u0131kt\u0131 Verimlili\u011fi<\/b><\/strong><\/li>\n<\/ul>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone wp-image-483\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/20240704-153829-300x90.jpg\" alt=\"\" width=\"160\" height=\"48\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/20240704-153829-300x90.jpg 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/20240704-153829.jpg 304w\" sizes=\"(max-width: 160px) 100vw, 160px\" \/>\uff0c Iq \u00e7ok k\u00fc\u00e7\u00fck oldu\u011fundan, ger\u00e7ek hesaplamalarda g\u00f6z ard\u0131 edilebilir.<\/p>\n<p>Form\u00fclden Vin ve Vout aras\u0131ndaki voltaj fark\u0131 ne kadar b\u00fcy\u00fck olursa, LDO'nun verimlili\u011finin o kadar d\u00fc\u015f\u00fck oldu\u011fu, t\u00fcketti\u011fi g\u00fcc\u00fcn ve \u00fcretti\u011fi \u0131s\u0131n\u0131n o kadar b\u00fcy\u00fck oldu\u011fu g\u00f6r\u00fclebilir.<\/p>\n<ul>\n<li><b><\/b><strong><b>Y\u00fck Reg\u00fclasyonu<\/b><\/strong><\/li>\n<\/ul>\n<p>Belirli bir y\u00fck de\u011fi\u015fimi alt\u0131nda \u00e7\u0131k\u0131\u015f voltaj\u0131ndaki de\u011fi\u015fimi ifade eder, burada y\u00fck de\u011fi\u015fimi genellikle y\u00fcks\u00fczden tam y\u00fcke do\u011frudur. Y\u00fck d\u00fczenleme oran\u0131 ne kadar k\u00fc\u00e7\u00fck olursa o kadar iyidir.<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone wp-image-485\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u724721.png\" alt=\"\" width=\"392\" height=\"325\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u724721.png 530w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u724721-300x248.png 300w\" sizes=\"(max-width: 392px) 100vw, 392px\" \/><\/p>\n<ul>\n<li><b><\/b><strong><b>Hat D\u00fczenlemesi<\/b><\/strong><\/li>\n<\/ul>\n<p>Giri\u015f de\u011fi\u015fikliklerinin \u00e7\u0131k\u0131\u015f \u00fczerindeki etkisini, yani belirli bir y\u00fck alt\u0131nda \u00e7\u0131k\u0131\u015f voltaj\u0131 de\u011fi\u015fikli\u011finin giri\u015f voltaj\u0131 de\u011fi\u015fikli\u011fine oran\u0131n\u0131 ifade eder. Do\u011frusal ayarlama oran\u0131 ne kadar k\u00fc\u00e7\u00fckse o kadar iyidir.<\/p>\n<p><strong><b>LDO voltaj reg\u00fclat\u00f6r\u00fc \u00e7ipi tipik uygulama devresi referans\u0131<\/b><\/strong><\/p>\n<ul>\n<li><b><\/b><strong><b>\u00e7\u0131k\u0131\u015f voltaj\u0131n\u0131 art\u0131rmak i\u00e7in devre<\/b><\/strong><\/li>\n<\/ul>\n<p><strong><b> <img decoding=\"async\" loading=\"lazy\" class=\"alignnone wp-image-486\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u72479.webp\" alt=\"\" width=\"583\" height=\"291\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u72479.webp 1112w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u72479-300x150.webp 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u72479-1024x511.webp 1024w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u72479-768x383.webp 768w\" sizes=\"(max-width: 583px) 100vw, 583px\" \/><\/b><\/strong><\/p>\n<ul>\n<li><b><\/b><strong><b>sabit ak\u0131m d\u00fczenleme devresi<\/b><\/strong><\/li>\n<\/ul>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone wp-image-488\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u724711.webp\" alt=\"\" width=\"593\" height=\"260\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u724711.webp 1140w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u724711-300x132.webp 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u724711-1024x449.webp 1024w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u724711-768x337.webp 768w\" sizes=\"(max-width: 593px) 100vw, 593px\" \/><\/p>\n<ul>\n<li><b><\/b><strong><b>\u00c7ift g\u00fc\u00e7 \u00e7\u0131k\u0131\u015f devresi<\/b><\/strong><\/li>\n<\/ul>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone wp-image-489\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u724712.webp\" alt=\"\" width=\"596\" height=\"269\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u724712.webp 1036w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u724712-300x136.webp 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u724712-1024x463.webp 1024w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2023\/07\/\u56fe\u724712-768x347.webp 768w\" sizes=\"(max-width: 596px) 100vw, 596px\" \/><\/p>\n<p><strong><b>A\u015fa\u011f\u0131dakiler s\u0131k kullan\u0131lan LDO'lard\u0131r<\/b><\/strong><strong><b>\u00a0:<\/b><\/strong><\/p>\n<table style=\"width: 88.0759%;\">\n<tbody>\n<tr>\n<td style=\"width: 15.2866%;\" width=\"116\"><strong><b>Model No <\/b><\/strong><\/td>\n<td style=\"width: 21.2739%;\" width=\"162\"><strong><b>Giri\u015f<\/b><\/strong><strong><b>\u00a0<\/b><\/strong><strong><b>gerilim\uff08V\uff09<\/b><\/strong><\/td>\n<td style=\"width: 23.8217%;\" width=\"182\"><strong><b>O<\/b><\/strong><strong><b>utput<\/b><\/strong><strong><b>\u00a0<\/b><\/strong><strong><b>gerilim\uff08V\uff09<\/b><\/strong><\/td>\n<td style=\"width: 17.9618%;\" width=\"137\"><strong><b>Sessiz Ak\u0131m<\/b><\/strong><b> <\/b><strong><b>\u03bc<\/b><\/strong><strong><b>A<\/b><\/strong><\/td>\n<td style=\"width: 41.9108%;\" width=\"154\"><strong><b>Maksimum \u00e7\u0131k\u0131\u015f ak\u0131m\u0131\uff08mA\uff09<\/b><\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 15.2866%;\" width=\"116\">SSP9193<\/td>\n<td style=\"width: 21.2739%;\" width=\"162\">5.5<\/td>\n<td style=\"width: 23.8217%;\" width=\"182\">1.2V~5.0<\/td>\n<td style=\"width: 17.9618%;\" width=\"137\">20<\/td>\n<td style=\"width: 41.9108%;\" width=\"154\">400<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 15.2866%;\" width=\"116\">SSP7935<\/td>\n<td style=\"width: 21.2739%;\" width=\"162\">35<\/td>\n<td style=\"width: 23.8217%;\" width=\"182\">2.5V~5.0<\/td>\n<td style=\"width: 17.9618%;\" width=\"137\">1.6<\/td>\n<td style=\"width: 41.9108%;\" width=\"154\">200<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 15.2866%;\" width=\"116\">SSP7903<\/td>\n<td style=\"width: 21.2739%;\" width=\"162\">40<\/td>\n<td style=\"width: 23.8217%;\" width=\"182\">3V~12.0<\/td>\n<td style=\"width: 17.9618%;\" width=\"137\">1.6<\/td>\n<td style=\"width: 41.9108%;\" width=\"154\">1000<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 15.2866%;\" width=\"116\">H75XX-H<\/td>\n<td style=\"width: 21.2739%;\" width=\"162\">45<\/td>\n<td style=\"width: 23.8217%;\" width=\"182\">2.5V~5.0<\/td>\n<td style=\"width: 17.9618%;\" width=\"137\">2.5<\/td>\n<td style=\"width: 41.9108%;\" width=\"154\">100<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 15.2866%;\" width=\"116\">SSP7985<\/td>\n<td style=\"width: 21.2739%;\" width=\"162\">80<\/td>\n<td style=\"width: 23.8217%;\" width=\"182\">2.5V~5.0<\/td>\n<td style=\"width: 17.9618%;\" width=\"137\">2<\/td>\n<td style=\"width: 41.9108%;\" width=\"154\">150<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><strong>\u015eirket Profili<\/strong>Siproin Microelectronics Co, Ltd profesyonel bir \"fabless\" \u015firketidir. <a class=\"linkilo_keyword_link\" href=\"https:\/\/www.siproin-ic.com\/tr\/products\/ssp1855\/\"   title=\"entegre devre\" data-linkilo-keyword-link=\"linked\">entegre devre<\/a> geli\u015ftirme ve sistem d\u00fczeyinde \u00e7\u00f6z\u00fcmler sa\u011flama. \u015eirketin ana \u00fcr\u00fcnleri aras\u0131nda manyetik depolama STT-MRAM bulunmaktad\u0131r, <a class=\"linkilo_keyword_link\" href=\"https:\/\/www.siproin-ic.com\/tr\/products\/ssp1837\/\"   title=\"G\u00dc\u00c7 Y\u00d6NET\u0130M\u0130\" data-linkilo-keyword-link=\"linked\">G\u00dc\u00c7 Y\u00d6NET\u0130M\u0130<\/a>IoT ileti\u015fimleri, \u00f6zel s\u00fcr\u00fcc\u00fcler, end\u00fcstriyel \u00f6l\u00e7\u00fcm ve tek \u00e7ipli mikrobilgisayar (MCU). \/DSP) ve ilgili \u00e7\u00f6z\u00fcmler, resmi web sitesi: <a href=\"http:\/\/www.siproin.com\" target=\"_blank\" rel=\"noopener\"><strong><u><b>http:\/\/www.siproin.com<\/b><\/u><\/strong><\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Elektronik tasar\u0131m s\u0131ras\u0131nda, devrenin \u00e7al\u0131\u015fmas\u0131n\u0131 sa\u011flamak i\u00e7in her zaman farkl\u0131 DC gerilimlerine ihtiya\u00e7 duyar\u0131z. En yayg\u0131n kullan\u0131lan\u0131, farkl\u0131 DC gerilimlerinin \u00e7\u0131k\u0131\u015f\u0131n\u0131 elde etmek i\u00e7in LDO voltaj reg\u00fclat\u00f6r \u00e7iplerini kullanmakt\u0131r. Bu y\u00fczden uygun bir LDO'nun nas\u0131l se\u00e7ilece\u011fi \u00f6zellikle \u00f6nemlidir. Bir\u00e7ok m\u00fchendis ilerlemeyi se\u00e7erken, yaln\u0131zca \u00e7\u0131k\u0131\u015f voltaj\u0131 ve ak\u0131m\u0131n iki g\u00f6stergesine g\u00f6re se\u00e7im yapar, ancak di\u011fer baz\u0131 \u00f6nemli teknik g\u00f6stergeleri g\u00f6z ard\u0131 ederek se\u00e7ilen LDO'nun en iyi se\u00e7im olmamas\u0131na neden olur. LDO'nun \u00e7al\u0131\u015fma prensibi ve birka\u00e7 \u00f6nemli teknik g\u00f6sterge hakk\u0131nda bilgi edinelim.<\/p>","protected":false},"author":1,"featured_media":1884,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[62],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/www.siproin-ic.com\/tr\/wp-json\/wp\/v2\/posts\/228"}],"collection":[{"href":"https:\/\/www.siproin-ic.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.siproin-ic.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.siproin-ic.com\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.siproin-ic.com\/tr\/wp-json\/wp\/v2\/comments?post=228"}],"version-history":[{"count":0,"href":"https:\/\/www.siproin-ic.com\/tr\/wp-json\/wp\/v2\/posts\/228\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.siproin-ic.com\/tr\/wp-json\/wp\/v2\/media\/1884"}],"wp:attachment":[{"href":"https:\/\/www.siproin-ic.com\/tr\/wp-json\/wp\/v2\/media?parent=228"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.siproin-ic.com\/tr\/wp-json\/wp\/v2\/categories?post=228"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.siproin-ic.com\/tr\/wp-json\/wp\/v2\/tags?post=228"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}