TEA1205 Philips Semiconductors, TEA1205 Datasheet - Page 2

• Manufacturer Part Number: TEA1205
• Description: High efficiency DC/DC converter
• Manufacturer: Philips Semiconductors

Philips Semiconductors
FEATURES
APPLICATIONS
ORDERING INFORMATION
1998 Mar 24
TEA1205AT
TYPE NUMBER
Fully integrated DC/DC converter circuit
Up conversion in 2 different modes
High efficiency over wide load range
Synchronizes to external high frequency clock
Output power up to 3.6 W (typ.) continuous, 8 W in GSM
burst mode
Low quiescent power consumption
True current limit for Li-ion battery compatibility
Shut-down function
8-pin SO package.
Cellular and cordless phones PDAs and others
Supply voltage source for low-voltage chip sets
Portable computers
Battery backup supplies
Cameras.
High efficiency DC/DC converter
NAME
SO8
plastic small outline package; 8 leads; body width 3.9 mm
2
GENERAL DESCRIPTION
The TEA1205AT (see Fig.1) 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 or 5.5 V from
2, 3 or 4 NiCd cell batteries or one Li-ion battery at an
output power level up to 3.6 W (typ.) continuously, or 8 W
in GSM TDMA (1 : 8) burst mode. The switching frequency
of the converter can be synchronized to an external
high-frequency clock. Efficient, compact and dynamic
power conversion is achieved using a novel, digitally
controlled Pulse Width and Frequency Modulation
(PWFM) like control concept, integrated low R
power switches with low parasitic capacitances and
synchronous rectification.
DESCRIPTION
PACKAGE
Preliminary specification
TEA1205AT
dsON
VERSION
SOT96-1
CMOS