AiT Semiconductor Inc.

www.ait-ic.com

A7530

DC-DC CONVERTER BOOST(STEP-UP)

0.8V STARTUP, 200mA 350KHz PFM CONTROL ASYNCHRONOUS

REV3.2 - JUN 2007 RELEASED, MAY 2020 UPDATED - - 1 -

DESCRIPTION

FEATURES

A7530 is PVM Step-Up DC/DC IC with ultra low supply

current by CMOS process and suitable for use with

battery-powered instruments.

The A7530 IC consists of an oscillator, a PFM control

circuit, a driver transistor (LX switch), a reference

voltage unit, an error amplifier, resistors for voltage

detection, and a LX switch protection circuit. A low

ripple and high efficiency step-up DC/DC converter

can be constructed of this A7530 IC with only three

external components.

Output voltage can be selectable in the range from

2.5V to 6.0V, The A7530 converter can start up by

supply voltage as low as 0.8V, and capable of

delivering maximum 200mA output current at 3.3V

output with 1.8V input voltage, Quiescent current

drawn from power source is as low as 4uA. Packages

with EN (chip enable) pin are also available which can

reduce the IC power consumption during stand-by

mode.

The A7530 is available in SOT-23, SOT-25 and

SOT89-3 packages.

ORDERING INFORMATION

Package Type

Part Number

SOT-23

SPQ : 3,000pcs/Reel

A7530E3R-XXY

A7530E3VR-XXY

SOT-25

SPQ : 3,000pcs/Reel

A7530E5R-XXY

A7530E5VR-XXY

SOT89-3

SPQ : 1,000pcs/Reel

A7530K3R-XXY

A7530K3VR-XXY

Note

XX: Output Voltage

Y: Function Type

1: W/O Enable Circuit

(SOT89-3、SOT-23)

2: With Enable Circuit

(SOT-25)

V: Halogen free Package

R: Tape & Reel

AiT provides all RoHS products

 Minimal Number of External Components, Only

an Inductor (AiT-PIA6045-270M), a Diode (AiT-

B5819W), and a Capacitor

 Ultra Low Quiescent Current: 4uA

 ±2％ High Output Voltage Accuracy

 Output Range from 2.5V to 6.0V

 Deliver 200mA at 3.3V output voltage with 1.8V

input Voltage

 Low start-up voltage, 0.8V at 1mA

 Low temperature-drift coefficient of the output

voltage ±100ppm/℃

 85% High Power Conversion Efficiency

 Available in SOT-23, SOT-25 and SOT89-3

packages

APPLICATION

 Power Source for Battery-Powered Equipment

 Power Source for Camera, Camcorder, VCT,

PDA, Pager, Electronic Data Bank, Hand-Held

Communication Equipment and Audio

Equipment.

 Power Source for Applications which require

higher voltage than that of batteries used in the

appliances.

TYPICAL APPLICATION