{"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\/zh\/selection-application-reference-for-ldo-voltage-regulator-chip\/","title":{"rendered":"LDO \u7a33\u538b\u5668\u82af\u7247\u7684\u9009\u62e9\u5e94\u7528\u53c2\u8003"},"content":{"rendered":"<p>\u5728\u7535\u5b50\u8bbe\u8ba1\u4e2d\uff0c\u6211\u4eec\u603b\u662f\u9700\u8981\u4e0d\u540c\u7684\u76f4\u6d41\u7535\u538b\u6765\u63d0\u4f9b\u7535\u8def\u5de5\u4f5c\u3002\u6700\u5e38\u7528\u7684\u5c31\u662f\u4f7f\u7528 LDO \u7a33\u538b\u5668\u82af\u7247\u6765\u5b9e\u73b0\u4e0d\u540c\u76f4\u6d41\u7535\u538b\u7684\u8f93\u51fa\u3002\u56e0\u6b64\uff0c\u5982\u4f55\u9009\u62e9\u5408\u9002\u7684 LDO \u5c31\u663e\u5f97\u5c24\u4e3a\u91cd\u8981\u3002\u5f88\u591a\u5de5\u7a0b\u5e08\u5728\u9009\u62e9\u8fc7\u7a0b\u4e2d\uff0c\u53ea\u6839\u636e\u8f93\u51fa\u7535\u538b\u548c\u7535\u6d41\u8fd9\u4e24\u4e2a\u6307\u6807\u8fdb\u884c\u9009\u62e9\uff0c\u5374\u5ffd\u7565\u4e86\u5176\u4ed6\u51e0\u4e2a\u5173\u952e\u6280\u672f\u6307\u6807\uff0c\u5bfc\u81f4\u6240\u9009\u7684 LDO \u5e76\u4e0d\u662f\u6700\u4f73\u9009\u62e9\u3002\u4e0b\u9762\u6211\u4eec\u5c31\u6765\u4e86\u89e3\u4e00\u4e0b LDO \u7684\u5de5\u4f5c\u539f\u7406\u548c\u51e0\u4e2a\u91cd\u8981\u7684\u6280\u672f\u6307\u6807\u3002<\/p>\n<p><strong><b>\u539f\u5219 <\/b><\/strong><strong><b>I<\/b><\/strong><strong><b>\u5bfc\u8a00<\/b><\/strong><\/p>\n<p>LDO\uff0c\u5373\u4f4e\u538b\u5dee\u7a33\u538b\u5668\uff0c\u5c5e\u4e8e\u7ebf\u6027\u7535\u6e90\u3002\u5176\u5e94\u7528\u6240\u9700\u7684\u5916\u90e8\u5143\u4ef6\u76f8\u5bf9\u8f83\u5c11\u3002\u5927\u591a\u6570\u578b\u53f7\u7684 LDO \u53ea\u9700\u5728\u8f93\u5165\u7aef\u548c\u8f93\u51fa\u7aef\u8fde\u63a5\u4e00\u4e2a\u6ee4\u6ce2\u7535\u5bb9\u5668\u3002\u5982\u4e0b\u56fe\u6240\u793a<\/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>\u5176\u5185\u90e8\u7ed3\u6784\u5982\u4e0b\u56fe\u6240\u793a<\/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>\u4ece\u539f\u7406\u56fe\u53ef\u4ee5\u77e5\u9053\uff0cLDO \u4e3b\u8981\u7531 PMOS\u3001\u8bef\u5dee\u653e\u5927\u5668\u3001\u53cd\u9988\u7535\u963b\u548c\u57fa\u6781\u57fa\u51c6\u7535\u538b\u7ec4\u6210\u3002LDO \u7684\u4e3b\u8981\u5de5\u4f5c\u8fc7\u7a0b\u662f\u901a\u8fc7\u5206\u538b\u7535\u963b\u5c06\u8f93\u51fa\u7535\u538b\u8fdb\u884c\u5206\u538b\uff0c\u4e0e\u57fa\u6781\u57fa\u51c6\u7535\u538b\u8fdb\u884c\u6bd4\u8f83\uff0c\u5e76\u901a\u8fc7\u8fd0\u7b97\u653e\u5927\u5668\u8f93\u51fa\u8c03\u8282 PMOS \u7ba1\u7684\u5bfc\u901a\u538b\u964d\uff0c\u4ece\u800c\u5b9e\u73b0\u8f93\u51fa\u7535\u538b\u7684\u52a8\u6001\u7a33\u5b9a\u3002<\/p>\n<p><strong><b>\u9009\u62e9\u53c2\u6570<\/b><\/strong><\/p>\n<ul>\n<li><b><\/b><strong><b>\u8f93\u5165\u7535\u538b<\/b><\/strong><\/li>\n<\/ul>\n<p>\u8f93\u5165\u7535\u538b\u662f\u6307\u8f93\u5165\u7aef\u53ef\u8f93\u5165\u7684\u5de5\u4f5c\u7535\u538b\u8303\u56f4\u3002\u5982\u679c\u8f93\u5165\u7535\u538b\u4e3a 5V\uff0c\u5219\u5728\u9009\u62e9\u65f6\u5e94\u9009\u62e9\u8010\u538b\u4e3a 10V \u5de6\u53f3\u7684 LDO\u3002\u4e00\u822c\u6765\u8bf4\uff0c\u5efa\u8bae\u8f93\u5165\u7535\u538b\u8303\u56f4\u4e3a\u6b63\u5e38\u8f93\u5165\u7535\u538b\u7684\u4e24\u500d\u4ee5\u4e0a\u3002<\/p>\n<ul>\n<li><b><\/b><strong><b>Vout<\/b><\/strong><\/li>\n<\/ul>\n<p>\u8f93\u51fa\u7535\u538b\u662f LDO \u6700\u91cd\u8981\u7684\u53c2\u6570\uff0c\u4e5f\u662f\u7535\u5b50\u8bbe\u5907\u8bbe\u8ba1\u4eba\u5458\u5728\u9009\u62e9\u7a33\u538b\u5668\u65f6\u9996\u5148\u8981\u8003\u8651\u7684\u53c2\u6570\u3002LDO \u6709\u56fa\u5b9a\u8f93\u51fa\u7535\u538b\u548c\u53ef\u8c03\u8f93\u51fa\u7535\u538b\u4e24\u79cd\u7c7b\u578b\u3002\u56fa\u5b9a\u8f93\u51fa\u7535\u538b\u7a33\u538b\u5668\u6bd4\u8f83\u5bb9\u6613\u4f7f\u7528\uff0c\u800c\u4e14\u7531\u4e8e\u8f93\u51fa\u7535\u538b\u662f\u7531\u5236\u9020\u5546\u7cbe\u786e\u8c03\u8282\u7684\uff0c\u56e0\u6b64\u7a33\u538b\u5668\u5177\u6709\u8f83\u9ad8\u7684\u7cbe\u5ea6\u3002\u4f46\u662f\uff0c\u5b83\u6240\u8bbe\u5b9a\u7684\u8f93\u51fa\u7535\u538b\u503c\u662f\u666e\u901a\u7535\u538b\u503c\uff0c\u4e0d\u80fd\u6ee1\u8db3\u6240\u6709\u5e94\u7528\u8981\u6c42\u3002\u53ef\u8c03\u8f93\u51fa LDO \u7684\u8f93\u51fa\u7cbe\u5ea6\u53d7\u5916\u90e8\u5143\u4ef6\u7cbe\u5ea6\u548c\u6e29\u5ea6\u53d8\u5316\u7684\u5f71\u54cd\u3002<\/p>\n<ul>\n<li><b><\/b><strong><b>\u6700\u5927\u7535\u6d41<\/b><\/strong><\/li>\n<\/ul>\n<p>\u8fd9\u662f\u8f93\u51fa\u7aef\u5b50\u7684\u6700\u5927\u8f93\u51fa\u7535\u6d41\u503c\u3002\u8fd9\u91cc\u5e94\u8003\u8651\u6b63\u5e38\u5de5\u4f5c\u65f6\u7684\u5e73\u5747\u7535\u6d41\u548c\u5cf0\u503c\u7535\u6d41\u3002\u8fd9\u4e3b\u8981\u53d6\u51b3\u4e8e LDO \u80fd\u5426\u5728\u77ed\u65f6\u95f4\u5185\u63d0\u4f9b\u6240\u9700\u7684\u5cf0\u503c\u7535\u6d41\u3002<\/p>\n<ul>\n<li><b><\/b><strong><b>P<\/b><\/strong><strong><b>d<\/b><\/strong><\/li>\n<\/ul>\n<p>LDO \u7684\u8017\u6563\u529f\u7387 PD=\uff08Vin-Vout\uff09*Iout\uff0c\u5047\u8bbe\u8f93\u5165\u7535\u538b Vin=12V\uff0c\u8f93\u51fa\u7535\u538b Vout=3.6V\uff0c\u8f93\u51fa\u7535\u6d41 Iout=180mA\uff0c\u5219 LDO \u7684\u8017\u6563\u529f\u7387 PD=1.512W\uff0c\u6240\u6709\u8fd9\u4e9b\u529f\u8017\u90fd\u662f\u901a\u8fc7\u70ed\u635f\u8017\u5b9e\u73b0\u7684\uff0c\u56e0\u6b64\u4e0d\u5efa\u8bae\u5728\u8f93\u5165\u8f93\u51fa\u7535\u538b\u5dee\u8fc7\u5927\u3001\u8f93\u51fa\u7535\u6d41\u8f83\u5927\u7684\u60c5\u51b5\u4e0b\u4f7f\u7528 LDO\u3002<\/p>\n<p>\u5982\u679c\u6211\u4eec\u771f\u7684\u9700\u8981\u4f7f\u7528\u5b83\uff0c\u5c31\u5fc5\u987b\u8003\u8651 LDO \u82af\u7247\u80fd\u627f\u53d7\u591a\u5927\u7684\u529f\u8017\u3002\u8be6\u60c5\u8bf7\u53c2\u8003\u82af\u7247\u624b\u518c\u4e2d\u63d0\u4f9b\u7684\u6570\u636e\u3002<\/p>\n<p>\u8ba9\u6211\u4eec\u4ee5 SSP7903 \u4e3a\u4f8b\u3002\u4e0b\u56fe\u663e\u793a\u4e86\u4e0d\u540c\u5c01\u88c5\u7684\u6700\u5927\u529f\u7387\u8017\u6563\u3002\u8fd9\u4e2a\u6700\u5927\u529f\u7387\u8017\u6563\u662f\u82af\u7247\u6240\u80fd\u627f\u53d7\u7684\u6700\u5927\u70ed\u529f\u8017\u3002\u5982\u679c\u8d85\u8fc7\u8fd9\u4e2a\u503c\uff0c\u82af\u7247\u5c31\u4f1a\u70e7\u6bc1\u3002\u540c\u65f6\uff0c\u6211\u4eec\u5efa\u8bae\u4e0d\u8981\u5728\u6700\u5927\u6781\u9650\u503c\u4e0b\u957f\u65f6\u95f4\u4f7f\u7528\u3002<\/p>\n<table style=\"width: 49.8867%;\">\n<tbody>\n<tr>\n<td style=\"width: 36.4003%;\" width=\"220\">\u8017\u6563\u529f\u7387 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\">\u6beb\u74e6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u4e0a\u8ff0\u5178\u578b\u5c01\u88c5\u4f1a\u8017\u6563\u529f\u7387\uff0c\u56e0\u6b64\u6211\u4eec\u5c06\u9009\u62e9\u5e95\u90e8\u7684 TO 252 \u5c01\u88c5\u3002\u8bbe\u8ba1\u65f6\u8981\u7559\u6709\u4f59\u5730\u3002\u53ef\u4ee5\u589e\u52a0\u6563\u70ed\u57ab\u6216\u52a0\u88c5\u6563\u70ed\u5668\u6765\u8fbe\u5230\u6e29\u5ea6\u548c\u589e\u52a0\u529f\u7387\uff0c\u4ee5\u514d\u70e7\u574f LDO \u82af\u7247\u3002<\/p>\n<ul>\n<li><b><\/b><strong><b>\u538b\u5dee\u7535\u538b<\/b><\/strong><\/li>\n<\/ul>\n<p>Vdrop=Vin-Vout\uff0c\u5b9a\u4e49\u4e3a\u8f93\u5165\u7535\u538b\u4e0e\u8f93\u51fa\u7535\u538b\u4e4b\u5dee\u3002LDO \u5728\u4e0d\u540c\u7684\u8d1f\u8f7d\u7535\u6d41\u4e0b\u6709\u4e0d\u540c\u7684\u7535\u538b\u5dee\u3002\u4e0b\u56fe\u662f\u8f93\u51fa\u7535\u6d41\u4e0e\u7535\u538b\u5dee\u4e4b\u95f4\u7684\u5173\u7cfb\u66f2\u7ebf\u3002\u53ef\u4ee5\u770b\u51fa\uff0c\u8f93\u51fa\u7535\u6d41\u8d8a\u5c0f\uff0c\u7535\u538b\u5dee\u8d8a\u5c0f\u3002\u8f93\u5165\u7535\u538b\u8d8a\u4f4e\uff0c\u529f\u8017\u8d8a\u5c0f\uff0c\u6548\u7387\u8d8a\u9ad8\u3002\u5982\u679c\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u8f93\u5165\u7535\u538b\u4e0e\u8f93\u51fa\u7535\u538b\u4e4b\u95f4\u7684\u7535\u538b\u5dee\u5f88\u5c0f\uff0c\u4f46\u9700\u8981\u8f93\u51fa\u4e00\u5b9a\u7684\u7535\u6d41\uff08100mA\uff09\uff0c\u5219\u5fc5\u987b\u9009\u62e9\u5408\u9002\u7684 LDO \u624d\u80fd\u4fdd\u8bc1\u6b63\u5e38\u8f93\u51fa\u3002<\/p>\n<p>\u4f8b\u5982\uff0c78L05 \u7684\u7535\u538b\u5dee\u7ea6\u4e3a 2V\uff0c\u800c H7550-H \u7684\u7535\u538b\u5dee\u4ec5\u7ea6\u4e3a 600mV\u3002\u5f53\u7136\uff0c\u53ea\u6709\u9009\u62e9 H7550-H \u624d\u80fd\u4fdd\u8bc1\u8f93\u51fa\u6b63\u5e38\u3002\u540c\u65f6\uff0c\u82af\u7247\u7684\u529f\u8017\u4f1a\u5c0f\u5f97\u591a\uff0c\u6027\u80fd\u4e5f\u4f1a\u66f4\u597d\u3002<\/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\uff0c\u5b83\u7684\u5b9a\u4e49\u662f\u5f53\u5916\u90e8\u8d1f\u8f7d\u7535\u6d41\u4e3a 0 \u65f6\uff0c\u4e3a LDO \u5185\u90e8\u7535\u8def\u4f9b\u7535\u6240\u9700\u7684\u7535\u6d41\u3002\u5927\u591a\u6570 MOS \u7ed3\u6784 LDO \u7684 Iq \u90fd\u5f88\u5c0f\uff0c\u8fd9\u662f\u8861\u91cf LDO \u5728\u4f4e\u8d1f\u8f7d\u6761\u4ef6\u4e0b\u81ea\u8eab\u6d88\u8017\u7684\u4e00\u4e2a\u91cd\u8981\u6307\u6807\u3002Iq \u8d8a\u5c0f\u8d8a\u597d\u3002<\/p>\n<ul>\n<li><b><\/b><strong><b>\u8d1f\u8f7d\u77ac\u6001\u54cd\u5e94<\/b><\/strong><\/li>\n<\/ul>\n<p>\u8868\u793a\u8d1f\u8f7d\u7535\u6d41\u7a81\u7136\u53d8\u5316\u65f6\u8f93\u51fa\u7535\u538b\u7684\u6700\u5927\u53d8\u5316\u3002\u5b83\u662f\u8f93\u51fa\u7535\u5bb9\u3001\u7b49\u6548\u4e32\u8054\u7535\u963b\u548c\u65c1\u8def\u7535\u5bb9\u7684\u51fd\u6570\u3002\u8f93\u51fa\u7535\u5bb9\u7684\u4f5c\u7528\u662f\u63d0\u9ad8\u8d1f\u8f7d\u77ac\u6001\u54cd\u5e94\u80fd\u529b\uff0c\u540c\u65f6\u8fd8\u53ef\u7528\u4f5c\u9ad8\u9891\u65c1\u8def\u3002<\/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>\u542f\u52a8\u7535\u6e90<\/b><\/strong><\/li>\n<\/ul>\n<p>\u5b83\u662f\u6307\u5728\u901a\u7535\u77ac\u95f4\u65bd\u52a0\u4e00\u5b9a\u8d1f\u8f7d\u65f6\uff0c\u8f93\u51fa\u7aef\u7535\u538b\u8d85\u51fa\u7cbe\u5ea6\u8303\u56f4\u7684\u73b0\u8c61\u3002\u8fd9\u4e5f\u662f\u5f88\u591a\u4eba\u5ffd\u89c6\u7684\u4e00\u70b9\u3002\u5982\u679c\u8fc7\u51b2\u503c\u8f83\u5927\uff0c\u53ef\u80fd\u4f1a\u5f71\u54cd\u751a\u81f3\u635f\u574f\u540e\u7eed\u7535\u8def\u5143\u4ef6\uff0c\u9020\u6210\u7535\u8def\u677f\u6545\u969c\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u8fd9\u662f\u5728\u67d0\u7f51\u7ad9\u4e0a\u8d2d\u4e70\u7684 LDO \u82af\u7247\u3002\u8f93\u5165\u7535\u538b\u4e3a 7V\uff0c\u8d1f\u8f7d\u4e3a 10mA\uff0c\u8f93\u51fa\u7535\u538b\u4e3a 5V\u3002\u4e0a\u7535\u6ce2\u5f62\u548c\u7535\u538b\u5f00\u5173\u6ce2\u5f62\u5982\u4e0b\uff1a<\/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>\u5f00\u673a\u77ac\u65f6\u6ce2\u5f62 \u7535\u538b\u5207\u6362\u6ce2\u5f62\uff087V \u81f3 10V \u5207\u6362\uff09<\/p>\n<p>\u82af\u7247\u901a\u7535\u65f6\u7684\u6700\u5927\u503c\u4e3a 6.816V\uff0c\u6301\u7eed\u65f6\u95f4\u4e3a 263ms\uff0c\u8d85\u8fc7 36%\u3002\u5207\u6362\u7535\u538b\u65f6\uff0c\u6700\u5927\u503c\u8fbe\u5230 6.225V\uff0c\u6301\u7eed 1ms\uff0c\u8d85\u8fc7 24%\u3002\u5bf9\u4e8e\u90a3\u4e9b 5V \u7684\u5fae\u63a7\u5236\u5668\u6765\u8bf4\uff0c\u8fd9\u662f\u4e00\u4e2a\u5f88\u5927\u7684\u635f\u5bb3\uff0c\u6781\u6709\u53ef\u80fd\u5bfc\u81f4\u540e\u7eed\u82af\u7247\u7684\u635f\u574f\u3002<\/p>\n<p>\u4ee5\u524d\u4f7f\u7528\u7684 SSP7903 \u8f93\u5165\u7535\u538b\u4e3a 5.6V\uff0c\u8d1f\u8f7d\u4e3a 10mA\uff0c\u8f93\u51fa\u4e3a 3.6V\u3002\u5728\u4e0a\u7535\u548c\u7535\u538b\u5207\u6362\u671f\u95f4\u6ca1\u6709\u8fc7\u51b2\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>\u5f00\u673a\u77ac\u65f6\u6ce2\u5f62 \u7535\u538b\u5207\u6362\u6ce2\u5f62\uff085.6V \u81f3 15V \u5207\u6362\uff09<\/p>\n<ul>\n<li><b><\/b><strong><b>P<\/b><\/strong><strong><b>\u7535\u6e90\u6291\u5236\u6bd4\uff08PSRR\uff09<\/b><\/strong><\/li>\n<\/ul>\n<p>\u7535\u6e90\u7eb9\u6ce2\u6291\u5236\u6bd4\u662f\u8f93\u5165\u7535\u538b\u566a\u58f0\u6ce2\u52a8\uff08\u7eb9\u6ce2\uff09\u4e0e\u8f93\u51fa\u7535\u538b\u566a\u58f0\u6ce2\u52a8\uff08\u7eb9\u6ce2\uff09\u4e4b\u6bd4\uff0c\u901a\u5e38\u7528\u5206\u8d1d\uff08dB\uff09\u8868\u793a\u3002<\/p>\n<p>\u8ba1\u7b97\u516c\u5f0f\u4e3a <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\" \/>\u5b9a\u4e49\u4e3a LDO \u6291\u5236 Vin \u4e0a\u566a\u58f0\u7684\u80fd\u529b\u3002<\/p>\n<p>PSRR \u503c\u8d8a\u5927\uff0c\u7eb9\u6ce2\u6291\u5236\u80fd\u529b\u8d8a\u5f3a\u3002<\/p>\n<ul>\n<li><b><\/b><strong><b>\u566a\u97f3<\/b><\/strong><\/li>\n<\/ul>\n<p>\u4e0e PSRR \u4e0d\u540c\uff0c\u566a\u58f0\u662f\u6307 LDO \u672c\u8eab\u4ea7\u751f\u7684\u566a\u58f0\u4fe1\u53f7\u3002\u4f4e\u566a\u58f0 LDO \u7a33\u538b\u5668\u82af\u7247\u53ef\u6709\u6548\u964d\u4f4e LDO \u4ea7\u751f\u7684\u989d\u5916\u566a\u58f0\u3002\u8f93\u51fa\u7535\u538b\u66f4\u52a0\u7eaf\u51c0\u3002\u566a\u58f0\u7684\u8ba1\u7b97\u503c\u4e00\u822c\u4e3a\u6709\u6548\u503c\uff08\u5747\u65b9\u6839\u503c\uff09\u3002\u60a8\u4e5f\u53ef\u4ee5\u4f7f\u7528\u5cf0\u5cf0\u503c\u8fdb\u884c\u5206\u6790\u3002<\/p>\n<ul>\n<li><b><\/b><strong><b>\u8f93\u51fa\u6548\u7387<\/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\" \/>\u7531\u4e8e Iq \u975e\u5e38\u5c0f\uff0c\u5728\u5b9e\u9645\u8ba1\u7b97\u4e2d\u53ef\u4ee5\u5ffd\u7565\u4e0d\u8ba1\u3002<\/p>\n<p>\u4ece\u516c\u5f0f\u4e2d\u53ef\u4ee5\u770b\u51fa\uff0cVin \u548c Vout \u4e4b\u95f4\u7684\u7535\u538b\u5dee\u8d8a\u5927\uff0cLDO \u7684\u6548\u7387\u8d8a\u4f4e\uff0c\u6d88\u8017\u7684\u529f\u7387\u8d8a\u5927\uff0c\u4ea7\u751f\u7684\u70ed\u91cf\u4e5f\u8d8a\u5927\u3002<\/p>\n<ul>\n<li><b><\/b><strong><b>\u8d1f\u8f7d\u8c03\u8282<\/b><\/strong><\/li>\n<\/ul>\n<p>\u5b83\u6307\u7684\u662f\u5728\u7ed9\u5b9a\u8d1f\u8f7d\u53d8\u5316\u60c5\u51b5\u4e0b\u8f93\u51fa\u7535\u538b\u7684\u53d8\u5316\uff0c\u8d1f\u8f7d\u53d8\u5316\u901a\u5e38\u662f\u4ece\u7a7a\u8f7d\u5230\u6ee1\u8f7d\u3002\u8d1f\u8f7d\u8c03\u8282\u7387\u8d8a\u5c0f\u8d8a\u597d\u3002<\/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>\u7ebf\u8def\u8c03\u8282<\/b><\/strong><\/li>\n<\/ul>\n<p>\u5b83\u662f\u6307\u8f93\u5165\u53d8\u5316\u5bf9\u8f93\u51fa\u7684\u5f71\u54cd\uff0c\u5373\u5728\u4e00\u5b9a\u8d1f\u8f7d\u4e0b\u8f93\u51fa\u7535\u538b\u53d8\u5316\u4e0e\u8f93\u5165\u7535\u538b\u53d8\u5316\u7684\u6bd4\u503c\u3002\u7ebf\u6027\u8c03\u6574\u7387\u8d8a\u5c0f\u8d8a\u597d\u3002<\/p>\n<p><strong><b>LDO \u7a33\u538b\u5668\u82af\u7247\u5178\u578b\u5e94\u7528\u7535\u8def\u53c2\u8003<\/b><\/strong><\/p>\n<ul>\n<li><b><\/b><strong><b>\u589e\u52a0\u8f93\u51fa\u7535\u538b\u7684\u7535\u8def<\/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>\u6052\u6d41\u8c03\u8282\u7535\u8def<\/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>\u53cc\u7535\u6e90\u8f93\u51fa\u7535\u8def<\/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>\u4ee5\u4e0b\u662f\u5e38\u7528\u7684 LDO<\/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>\u578b\u53f7 <\/b><\/strong><\/td>\n<td style=\"width: 21.2739%;\" width=\"162\"><strong><b>\u8f93\u5165<\/b><\/strong><strong><b>\u00a0<\/b><\/strong><strong><b>\u7535\u538b\uff08V\uff09<\/b><\/strong><\/td>\n<td style=\"width: 23.8217%;\" width=\"182\"><strong><b>O<\/b><\/strong><strong><b>\u8f93\u5165<\/b><\/strong><strong><b>\u00a0<\/b><\/strong><strong><b>\u7535\u538b\uff08V\uff09<\/b><\/strong><\/td>\n<td style=\"width: 17.9618%;\" width=\"137\"><strong><b>\u9759\u6001\u7535\u6d41<\/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>\u6700\u5927\u8f93\u51fa\u7535\u6d41\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>\u516c\u53f8\u7b80\u4ecb<\/strong>Siproin\u5fae\u7535\u5b50\u6709\u9650\u516c\u53f8\u662f\u4e00\u5bb6\u4e13\u4e1a\u7684 \"\u65e0\u6676\u5706\u5382 \"\u516c\u53f8\uff0c\u4ece\u4e8b\u4ee5\u4e0b\u4e1a\u52a1 <a class=\"linkilo_keyword_link\" href=\"https:\/\/www.siproin-ic.com\/zh\/products\/ssp1855\/\"   title=\"\u96c6\u6210\u7535\u8def\" data-linkilo-keyword-link=\"linked\">\u96c6\u6210\u7535\u8def<\/a> \u5f00\u53d1\u548c\u63d0\u4f9b\u7cfb\u7edf\u7ea7\u89e3\u51b3\u65b9\u6848\u3002\u516c\u53f8\u7684\u4e3b\u8981\u4ea7\u54c1\u5305\u62ec\u78c1\u5b58\u50a8 STT-MRAM\u3001 <a class=\"linkilo_keyword_link\" href=\"https:\/\/www.siproin-ic.com\/zh\/products\/ssp1837\/\"   title=\"\u7535\u6e90\u7ba1\u7406\" data-linkilo-keyword-link=\"linked\">\u7535\u6e90\u7ba1\u7406<\/a>\u7269\u8054\u7f51\u901a\u4fe1\u3001\u4e13\u7528\u9a71\u52a8\u5668\u3001\u5de5\u4e1a\u8ba1\u91cf\u548c\u5355\u82af\u7247\u5fae\u7535\u8111 (MCU)\u3002\/DSP\uff09\u548c\u76f8\u5e94\u89e3\u51b3\u65b9\u6848\u7684\u5b98\u65b9\u7f51\u7ad9\uff1a <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>\u5728\u7535\u5b50\u8bbe\u8ba1\u4e2d\uff0c\u6211\u4eec\u603b\u662f\u9700\u8981\u4e0d\u540c\u7684\u76f4\u6d41\u7535\u538b\u6765\u63d0\u4f9b\u7535\u8def\u5de5\u4f5c\u3002\u6700\u5e38\u7528\u7684\u5c31\u662f\u4f7f\u7528 LDO \u7a33\u538b\u5668\u82af\u7247\u6765\u5b9e\u73b0\u4e0d\u540c\u76f4\u6d41\u7535\u538b\u7684\u8f93\u51fa\u3002\u56e0\u6b64\uff0c\u5982\u4f55\u9009\u62e9\u5408\u9002\u7684 LDO \u5c31\u663e\u5f97\u5c24\u4e3a\u91cd\u8981\u3002\u5f88\u591a\u5de5\u7a0b\u5e08\u5728\u9009\u62e9\u8fc7\u7a0b\u4e2d\uff0c\u53ea\u6839\u636e\u8f93\u51fa\u7535\u538b\u548c\u7535\u6d41\u8fd9\u4e24\u4e2a\u6307\u6807\u8fdb\u884c\u9009\u62e9\uff0c\u5374\u5ffd\u7565\u4e86\u5176\u4ed6\u51e0\u4e2a\u5173\u952e\u6280\u672f\u6307\u6807\uff0c\u5bfc\u81f4\u6240\u9009\u7684 LDO \u5e76\u4e0d\u662f\u6700\u4f73\u9009\u62e9\u3002\u4e0b\u9762\u6211\u4eec\u5c31\u6765\u4e86\u89e3\u4e00\u4e0b LDO \u7684\u5de5\u4f5c\u539f\u7406\u548c\u51e0\u4e2a\u91cd\u8981\u7684\u6280\u672f\u6307\u6807\u3002<\/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\/zh\/wp-json\/wp\/v2\/posts\/228"}],"collection":[{"href":"https:\/\/www.siproin-ic.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.siproin-ic.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.siproin-ic.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.siproin-ic.com\/zh\/wp-json\/wp\/v2\/comments?post=228"}],"version-history":[{"count":0,"href":"https:\/\/www.siproin-ic.com\/zh\/wp-json\/wp\/v2\/posts\/228\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.siproin-ic.com\/zh\/wp-json\/wp\/v2\/media\/1884"}],"wp:attachment":[{"href":"https:\/\/www.siproin-ic.com\/zh\/wp-json\/wp\/v2\/media?parent=228"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.siproin-ic.com\/zh\/wp-json\/wp\/v2\/categories?post=228"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.siproin-ic.com\/zh\/wp-json\/wp\/v2\/tags?post=228"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}