Diodes AP3427M User Manual download pdf (Page 3)

Preliminary Datasheet

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

Mar. 2013 Rev. 1.0 BCD Semiconductor Manufacturing Limited

Functional Block Diagram

Over Current

Comparator

Bias

Generator

Saw-tooth

Generator

Oscillator

Soft

Start

Bandgap

Reference

Current

Sensing

Control

Logic

Buffer &

Dead Time

Control

Logic

Reverse Inductor

Current Comparator

Over Voltage

Comparator

Modulator

Error

Amplifier

EN1/EN2

FB1/

LX1/

VIN1/VIN2

GND

2/7

1/6 8/3

10/5

4/9

FB2

LX2

Thermal

Shutdown

Figure 3. Functional Block Diagram of AP3427M

Ordering Information

AP3427M -

Circuit Type G1: Green

Package

TR: Tape & Reel

DN: DFN-3×3-10

Package

Temperature

Range

Part Number Marking ID

Packing

Type

DFN-3×3-10

-40 to 80°C

AP3427MDNTR-G1 BFE Tape & Reel

BCD Semiconductor's Pb-free products, as designated with "G1" suffix in the part number, are RoHS compliant

and green.

1 2 3 4 5 6 7 8 9 10 11

TR: Tape & Reel 3
ESD (Machine Model) 4
Electrical Characteristics 5
Output Current (mA) 6
Efficiency (%) 6
7
PIN #1 IDENTIFICATION 10

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