Features
| Application
|
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Features
| Application
|
Absolute Maximum Ratings
| Parameter | Range |
| Supply Voltage(VIN) | -0.3V~43V |
| Maximum Output Voltage(VOUT) | 0.95*VIN |
| Switch Voltage(VSW) | -0.3~VIN(MAX)+0.3V |
| BST to SW | -0.3V~6.0V |
| All Other Pins | -0.3V~6.0V |
| Maximum Output Current | 1A |
| Junction Temperature | 150℃ |
| Lead Temperature | 260℃ |
| THermal Resistance | θJA 50℃/W θJC 10℃/W |
| Operating Ambient Temperature | –40℃ ~ +85℃ |
| Storage Temperature | -65℃~150℃ |
| Operating Junction Temp(TJ) | -40℃~125℃ |
Electrical Characteristics
Vin=12V,Ta= 25℃,unless specified otherwise.
| Parameter | Symbol | Test Conditions | Min | Typ | Max | Unit |
| Feedback Voltage | Vfb | 0.778 | 0.794 | 0.810 | V | |
| Upper Switch ON Resistance | Rsw | Vbst-Vsw=5V | 500 | mΩ | ||
| Upper Switch Leakage | Iswleak | Ven=0V, Vsw=0V | 0.1 | 1 | μA | |
| Transconductance | Gcs | COMP to SENSE | 3 | A/V | ||
| Minimum Operating Voltage | Vin_min | 4.2 | V | |||
| UVLO Up Threshold | Vin(UVLO) | 3.3 | 4.2 | V | ||
| UVLO Hysteresis | Vin(UVLO)hys | 0.8 | V | |||
| Soft-Start Time | Tss | FB from 0 to1.8V | 0.5 | ms | ||
| Oscillator Frequency | Fosc | 1.4 | 1.8 | 2.2 | MHz | |
| Minimum Switch ON Time | Ton min | 100 | ns | |||
| Shutdown Current | Isd | Ven<0.3V | 1.5 | 2 | μA | |
| Quiescent Current | Isq | Vfb=0.9V,No load | 250 | μA | ||
| Thermal Shutdown | Temp | 200 | ℃ | |||
| Enable up threshold | Venh | 1.7 | V | |||
| Enable Threshold Hysteresis | En hys | 0.6 | V | |||
| Enable Clamp Voltage | En Vclamp | 7.5 | V |
Order Information
| Part No | Package | Manner of Packing | Devices per bag/reel |
| SSP9452 | ESOP-8 | Reel | 4000 |



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Microelectronics Co.,Ltd.
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