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Preliminary Datasheet

Dual 1A, 1.5MHZ Synchronous Step-down DC-DC Converter AP3427M

Mar. 2013 Rev. 1.0 BCD Semiconductor Manufacturing Limited

Pin Configuration

DN Package

（DFN-3×3-10）

Figure 2. Pin Configuration of AP3427M (Top View)

Pin Description

Pin Number Pin Name Function

1 EN1 Enable signal input of channel 1, active high

2 FB1 Feedback voltage of channel 1

3 VIN2 Power supply input of channel 2

4, 9, Exposed Pad GND GND. It should be connected to system ground

5 LX2 Connected from channel 2’s Power MOSFET to inductor

6 EN2 Enable signal input of channel 2, active high

7 FB2 Feedback voltage of channel 2

8 VIN1 Power supply input of channel 1

10 LX1 Connected from channel 1’s Power MOSFET to inductor

1 2 3 4 5 6 7 ... 10 11

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