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FX5545 GXXX XXX PI
Vishay
Document Number: 10130
Revision 22-Sep-03
FEATURES
•Specially designed for prototyping in LABs with limited
assembly equipment.
•Fully integrated DC/DC converter
•No external components required
•Buck and Boost configurations
•High efficiency over large load range
•100% duty cycle
•Power density - more than 380W/inch3
•1µA shutdown current
•2.5V to 6V input range (1Li+ and 3-cell NiCd or NiMH cells)
•0.9V to 6V output voltage
•Programmable PWM/PSM controls
•Low output ripple
•Standard socket construction or plug-in for prototype
(use BGA for production)
•Temperature range: - 40°C to + 85°C
•Output power 10W
•Maximum continuous current 3A
The DC/DC converter is a programmable topology
synchronized Buck or Boost converter for today’s continuous
changing electronic market. The DC/DC converter provides
flexibility of utilizing various battery configurations and
chemistries such as NiCd, NiMH, or Li+ with input voltage
range of 2.5V to 6V. An additional flexibility is provided with
topology programmability to power multiple loads such as
power amplifiers, microcontrollers, or baseband logic IC’s.
For ultra-high efficiency, converters are designed to operate
in synchronous rectified PWM mode under full load while
transforming into externally controlled pulse-skipping mode
(PSM) under light load.
The DC/DC converter is available in 20-ports BGA package
for production. Convenient 8-pin plug-in modules are
available for prototyping. In order to satisfy the stringent
ambient temperature requirements, the DC/DC converter is
designed to handle the industrial temperature range of - 40°C
to + 85°C, with no cooling or derating
FX 5545 G PI
FUNCTION
SIZE
CIRCUIT IDENTIFIER
OUTPUT VOLTAGE-Example: 2.7V should be written as 2V7 as the V indicates the decimal point,
or ADJ for adjustable version - self selectable output voltage.
PLUG-IN VERSION
ORDERING INFORMATION
APPLICATION
•Cordless phones, PDAs and others
•Supply voltage source for low-voltage chip sets
•Point of Load (POL) applications such as drivers for
FPGA’s, microprocessors, DSP’s, amplifiers, etc.
•Portable computers
•Battery back-up supplies
•Cameras
Fully Integrated DC/DC Converter 0.9V to 6V, 3A with
380W/in3 Density Power Efficiency up to 95% or
Simplified LAB assembly configuration for all models