PS0100

July 2007

www.picsemi.com

© 2007 Power IC. All Rights Reserved.

1

600mA Synchronous Boost

Converter with Output Disconnect

DESCRIPTION

FEATURES

The PS0100 is a synchronous, step-up DC/DC

converter delivering high efficiency in a SOT-26

package. The device has an internal NMOS switch

and PMOS synchronous rectifier and has the

capacity of supplying 3.3V at 100mA from a single

AA cell input.

Up to 92% efficiency

Low start-up voltage 0.8V

Internal synchronous rectifier

Up to 2MHz switching allows for tiny

external components

0.5V to 4.4V input range

2.5V to 5.0V output range (Note 3)

High frequency switching (up to 2MHz) minimizes

the board area by allowing the use of tiny, low

profile inductors and ceramic capacitors.

Fully discharged shutdown output voltage

Logic controlled shutdown (<1µA)

Low 250µA operating supply current

(measured at VOUT)

The PS0100 provides automatic pulse skipping at

light loads, thus reducing the supply current for

extended battery life. At shutdown, the PS0100

fully discharges the output to ground and draws no

supply current.

Pulse skipping at light load for extended

battery life

Generates 3.3V at 100mA from single AA

cell

Stable with ceramic output capacitor

The PS0100 is available in small SOT-26 package

with both fixed and adjustable output voltage

versions.

Low profile 6-Leads SOT-26 package

APPLICATIONS

MP3 / MP4 players

PDAs and organizers

Digital cameras

Wireless mice/ keyboards

Portable medical equipment

Cordless phones

Wireless Headsets

TYPICAL APPLICATION CIRCUIT