AME, Inc.

Rev.A.01

1

AME7730

100mA Regulated Charge Pump

n Functional Block Diagram

l

Input Voltage Range: 2.7V to 5V

l

Accurate to with ±4%

l Output Current: 100mA with V

50mA with V

l

1MHz Switching Frequency

l

Shutdown Mode < 1

µA

l

Short Circuit Protection

l

Over Temperature Protection

l

All AME's Lead Free Product Meet RoHS

Standards

The AME7730 is a charge pump voltage doublers that

delivers a regulated output. No external inductor is re-

quired for operation. Using three small capacitors, the

AME7730 can deliver up to 100mA to the voltage regu-

lated output. The AME7730 features very low output ripple

and high efficiency over a large portion of its load range

making this device ideal for battery-powered applications.

Furthermore, the combination of few external components

and small package size keeps the total converter board

area to a minimum in space restricted applications.

The AME7730 contains a thermal management circuit

to protect the device under continuous output short cir-

cuit conditions.

The AME7730 is available in SOT-26 / TSOT-26 pack-

l Cellular Phones

l Digital Cameras

l PDAs LCD displays

l LED / Display Back Light Driver

l LEDs for Comera Flash

n General Description

n Features

n Applications

n Typical Application

Control

EA

φ2

φ1

φ1

φ2

φ2

φ1

EN

C-

C+

V

IN

V

OUT

GND

AME

7730

V

OUT

C+

EN

C-

GND

V

IN

C

C

ON OFF

V

IN

V

OUT

3.0V to 5V

5V / 100mA

C