FX5545G2013V3T2 Datasheet, PDF (1/5 Pages) Vishay Siliconix – Industry Smallest and Low Profile 3W 1000mA DC/DC Buck Converter with High Output Power Density

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Industry Smallest and Low Profile
3W 1000mA DC/DC Buck Converter
with High Output Power Density
FX5545G201
Vishay
The DC/DC converter provides fully integrated synchronous
buck converter solution for the latest one-cell lithium ion
cellular phones. Its input voltage is between 2.7V to 6V,
capable of delivering up to 1000mA of output current at 1.5V
to 3.6V.
The DC/DC converter combines the 2MHz-switching
controller with fully integrated passive components needed
to deliver the smallest and most efficient converter available
today. The high switching frequency minimizes the output
capacitance with peak to peak output ripple as low as 25mV.
The DC/DC converter delivers efficiency up to 95%.
The programmable pulse-skipping mode (PSM) maintains
this efficiency even during the standby and idle modes to
increase overall battery life and talktime. In order to extract
the last ounce of power from the battery, the DC/DC
converter is designed with 100% duty cycle control for this
mode. This function enables the DC/DC converter to operate
like a saturated linear regulator delivering the highest
potential output voltage for longer talk time.
ORDERING INFORMATION
FEATURES
• Fully integrated DC/DC converter
• High efficiency over large load range
• 2MHz switching frequency
• 100% duty cycle
• Power density - more than 100W/inch³
• 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
• Output power 3W
• Maximum current 1.0A
• Low profile
• UL recognized component E250930
** Note: For higher output voltage please
consult factory at [e-mail]
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
• Point of Load (POL) applications such as drivers for
FPGA’s, microprocessors, DSP’s amplifiers, etc.
• Cordless phones, PDAs and others
• Supply voltage source for low-voltage chip sets
• Portable computers
• Battery back-up supplies
• Cameras
• Routers
• Fiber optics
• LANS
• Image processing
FX
5545
G201
FUNCTION
SIZE
CIRCUIT IDENTIFIER
OUTPUT VOLTAGE - 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.
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.
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 10104
Revision: 22-Apr-09
For technical questions, contact: [e-mail]
For marketing questions, contact: [e-mail]
www.vishay.com
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