AP3015 데이터 시트보기 (PDF) - BCD Semiconductor

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AP3015

MICRO POWER STEP-UP DC-DC CONVERTER

BCD Semiconductor 

MICRO POWER STEP-UP DC-DC CONVERTER

Pin Configuration

K Package

(SOT-23-5)

SW 1

GND 2

FB 3

5 VIN

4 SHDN

Figure 2. Pin Configuration of AP3015/A (Top View)

Data Sheet

AP3015/A

Pin Description

Pin Number Pin Name

Function

1

SW

Switch Pin. This is the collector of the internal NPN power switch. Minimize the trace area

connected to this Pin to minimize EMI

2

GND Ground Pin. GND should be tied directly to ground plane for best performance

3

FB

Feedback Pin. Set the output voltage through this pin. The formula is VOUT=1.23V*(1+R1/

R2). Keep the loop between Vout and FB as short as possible to minimize the ripple and noise,

which is beneficial to the stability and output ripple

4

SHDN Shutdown Control Pin. Tie this pin above 0.9V to enable the device. Tie below 0.25V to turn

off the device

5

VIN

Supply Input Pin. Bypass this pin with a capacitor as close to the device as possible

Oct. 2009 Rev. 1. 3

BCD Semiconductor Manufacturing Limited

2

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