APW7134 データシートの表示（PDF） - Kingbright

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APW7134

Dual 1.5MHz, 600mA Synchronous Step-Down Converter

Kingbright 

APW7134

Dual 1.5MHz, 600mA Synchronous Step-Down Converter

Features

• 600mA Output Current on Each Channel

• 2.5V to 5.5V Input Voltage Range

• 1.5MHz Constant Frequency Operation

• Low Dropout Operation at 100% Duty Cycle

• Synchronous Topology

• 0.6V Low Reference Voltage

• Typically 0.1 µA Shutdown Current

• Current Mode Operation

• Over Temperature Protection

• Over Current Protection

• Up to 94% Efficiency

• Internally Compensated

• Lead Free Available (RoHS Compliant)

Applications

• TV Tuner/Box

• Portable Instrument

General Description

The APW7134 contains two independent 1.5MHz con-

stant frequency, current mode, PWM step-down

converters. Each converter integrates a main switch

and a synchronous rectifier for high efficiency without

an external Schottky diode. The APW7134 is ideal for

powering portable equipment that runs from a single

cell Lithium-Ion (Li+) battery. Each converter can sup-

ply 600mA of load current from a 2.5V to 5.5V input

voltage. The output voltage can be regulated as low as

0.6V. The APW7134 can also run at 100% duty cycle

for low dropout applications.

Pinouts

EN1 1

FB1 2

IN2 3

GND2 4

SW2 5

APW7134 (Top View)

DFN-10 (3mm x 3mm)

10 SW1

9 GND1

8 IN1

7 FB2

6 EN2

Exposed pad

on backside

ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise

customers to obtain the latest version of relevant information to verify before placing orders.

Copyright © ANPEC Electronics Corp.

1

Rev. A.1 - Aug., 2006

www.anpec.com.tw

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