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TEA1024T

High efficiency DC/DC converter

Philips Electronics 

Philips Semiconductors

High efficiency DC/DC converter

Product specification

TEA1204T

FEATURES

• Fully integrated DC/DC converter circuit

• Up-or-down conversion, each in 2 different modes

• High efficiency (up to 96%) at high loads

• Output power up to 3.6 W (typ.) continuous, 8 W in GSM

burst mode

• Low quiescent power consumption

• Burst mode input for optimal dynamic response to

switching loads

• True current limit for LiIon battery compatibility

• Up to 100% duty cycle in down mode

• Shut-down function

• 8-pin SO package.

GENERAL DESCRIPTION

The TEA1204T is a fully integrated DC/DC converter

circuit using the minimum amount of external components.

It is intended to be used to supply electronic circuits with

supply voltages of 3.3, 3.6 or 5.0 V from 2, 3 or 4 NiCd cell

batteries or one LiIon battery at an output power level up

to 3.6 W (typ.) continuously, or 8 W in GSM TDMA (1 : 8)

burst mode. Efficient, compact and dynamic power

conversion is achieved using a novel, digitally controlled

Pulse Width and Frequency Modulation (PWFM) like

control concept, integrated low RdsON CMOS power

switches with low parasitic capacitances and synchronous

rectification.

APPLICATIONS

• Cellular and cordless phones PDAs and others

• Supply voltage source for low-voltage chip sets

• Portable computers

• Battery backup supplies

• Cameras.

ORDERING INFORMATION

TYPE NUMBER

TEA1204T

NAME

SO8

PACKAGE

DESCRIPTION

plastic small outline package; 8 leads; body width 3.9 mm

VERSION

SOT96-1

1998 Mar 02

2

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