AiT Semiconductor Inc.

www.ait-ic.com

A7530A

DC-DC CONVERTER/BOOST (STEP-UP)

SYNCHRONOUS PFM STEP-UP DC-DC CONVERTER

REV1.1 - DEC 2013 RELEASED, DEC 2019 UPDATED - - 1 -

DESCRIPTION

FEATURES

The A7530A Series is a CMOS PFM-control

step-up switching regulator that mainly consists of a

reference voltage source, an oscillator, and a

comparator, enabling products with a low ripple

over a wide range, high efficiency, and high output

current. With the A7530A Series, a step-up

switching regulator can be configured by using an

external coil and capacitor. A protection circuit turns

off the built-in MOSFET when the voltage at the

CONT pin exceeds the limit to prevent it from being

damaged. This feature, along with the mini package

and low current consumption, makes the A7530A

Series ideal for applications such as the power

supply unit of portable equipment.

The A7530A is available in SOT-23 and SOT-25

packages.

ORDERING INFORMATION

Package Type

Part Number

SOT-23

SPQ: 3,000pcs/Reel

A7530AE3R-XXY

A7530AE3VR-XXY

SOT-25

SPQ: 3,000pcs/Reel

A7530AE5R-XXY

A7530AE5VR-XXY

Note

XX: Output Voltage

30=3.0V; 33=3.3V

Y: Function Type

1. W/O Enable Circuit

2. With Enable Circuit

V: Halogen free Package

R: Tape & Reel

AiT provides all RoHS products

 High efficiency:95%

 Highest switching frequency:300kHz

 Low input current: 15uA

 Output voltage:2.5~5.0V(step 0.1V)

 Accuracy of ±2.5%

 Input voltage:0.9V~5.0V

 Low Ripple, Low Noise

 Available in SOT-23 and SOT-25 packages

APPLICATION

 Power supply for portable equipment such as

digital cameras, electronic notebooks, and PDA

 Power supply for audio equipment such as

portable CD/MD players

 Constant voltage power supply for cameras,

video equipment, and communications

equipment

 Power supply for microcomputers

TYPICAL APPLICATION

Basic Application Circuit