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LP3989 数据表(PDF) 2 Page - Lowpower Semiconductor inc |
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LP3989 数据表(HTML) 2 Page - Lowpower Semiconductor inc |
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2 / 8 page ![]() LP3989-01 Aug.-2014 Email: marketing@lowpowersemi.com www.lowpowersemi.com Page 2 of 8 Preliminary Datasheet LP3989 Functional Pin Description Package Type Pin Configurations SOT23-5 5 4 3 2 1 ADJ EN GND VIN OUT (MARKING) SOT23-5 Pin Description Pin Name Description 1 EN Chip Enable (Active High). There is an integrated pull low 1MΩ resistor connected to GND when the EN pin is floating. 2 GND Ground. 3 VOUT Output Voltage. Vout=VFB ×(1+R1/R2), which VFB = 0.8V 4 VIN Power Input Voltage. 5 ADJ Feedback pin. The reference voltage is 0.8V. |
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