FX5545G105
Vishay
Industry Smallest and Low Profile
6.5W 2.0A DC/DC Buck Converter
with High Output Power Density
FEATURES
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Fully integrated DC/DC converter
High efficiency over large load range
100% duty cycle
Power density - more than 240W/inch
3
1µA shutdown current
2.7V to 6V input range (1Li+ and 3-cell NiCd or NiMH cells)
1.35V to 4.5V* output voltage
Programmable PWM/PSM controls
Low output ripple
BGA/LGA construction
Temperature range: - 40°C to + 85°C
No external components needed
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Output power 6.5W
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Maximum current 2.0A
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Low profile
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UL recognized component E250930
* Note:
For higher output voltage please
consult factory at FunctionPAK@Vishay.com
The DC/DC converter is a programmable topology
synchronized Buck converter for today’s continuous
changing portable electronic market. The DC/DC converter
provides flexibility of utilizing various battery configurations
and chemistries such as NiCd, NiMH, or Li+ with an input
voltage range of 2.7V 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.
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.
APPLICATION
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Point of Load (POL) applications such as drivers for
FPGA’s, microprocessors, DSP’s amplifiers, etc.
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Cordless phones, PDAs and others
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Supply voltage source for low-voltage chip sets
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Portable computers
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Battery back-up supplies
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Cameras
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Routers
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Fiber optics
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LANS
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Image processing
ORDERING INFORMATION
FX
FUNCTION
SIZE
CIRCUIT IDENTIFIER
OUTPUT VOLTAGE - Output Volatge-Example: 2.7V should be written as 2V7 as
the V indicates the decimal point, or ADJ for adjustable version - self selectable output voltage.
PACKAGING - B1 = 10pcs in bulk; B5 = 50pcs in bulk; T1 = 13” reel; T2 = 7” reel.
For lead (Pb)-free solder please add E2 suffix. Leave blank for regular SnPb.
Document Number: 10114
Revision: 26-Aug-05
For technical questions, contact FunctionPAK@vishay.com
For marketing questions, contact FunctionPAK.marketing@vishay.com
www.vishay.com
27
5545
G105
DSP 与 ARM 处理器
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