VISHAY FX5545G005 Technical data
查询FX5545G005供应商
Industry Smallest and Low Profile
5W 1.5A DC/DC Buck Converter
with High Output Power Density
FEATURES
• Fully integrated DC/DC converter
• High efficiency over large load range
• 100% duty cycle
• Power density - more than 100W/inch
• 1µA shutdown current
• 2.7V to 6V input range (1 Li+ and 3-cell NiCd or NiMH cells)
• 1.35V to 4.5V* output voltage
• Programmable PWM/PSM
• Low output ripple
• BGA/LGA construction
• Temperature range: - 40°C to + 85°C
• Output power 5W
• Maximum current 1.5A
• No external components needed
• Low profile
*Note: For higher output voltage please consult factory at
FunctionPAK@Vishay.com
FX5545G005
Vishay
3
controls
The DC/DC converter is a programmable topology
synchronized Buck converter for today’s continous 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/LGA
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
ORDERING INFORMATION
FX 5545 G005
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.
PACKAGING - B1 = 10pcs in bulk; B5 = 50pcs in bulk; T1 = 13” reel; T2 = 7” reel.
For lead (Pb)-free solder please add E2 suffix.
Document Number: 10112 For technical questions, contact Function
Revision: 21-Jan-05 11
For marketing questions, contact FunctionPA K.marketing@vishay.com
PAK @vishay.com
www.vishay.com
FX5545G005
Vishay
DIMENSIONS in inches [millimeters]
L
W
A
B
C
T
Ball Diameter
[0.762 ± 0.025]
0.58 ± 0.01
[14.7 ± 0.25]
0.48 ± 0.01
[12.2 ± 0.25]
0.1 ± 0.01
[2.54 ± 0.25]
0.09 ± 0.01
[2.29 ± 0.25]
0.09 ± 0.01
[2.27 ± 0.25]
0.12 max
[3 max]
0.03 ± 0.001
w
L
T
B
A
C
A
BOTTOM SIDE
20
19 18 17
15 14
16
13
12 11109
876
32
4
Marked on Upper Side
5
1
*Note: Pin Description application note is available at
www.vishay.com/doc?10119
**Note: if not used must be connected to Vin.
RECOMMENDED PAD PATTERN
in inches [millimeters]
ADF
0.1 ± 0.01
[2.54 ± 0.25]
0.03 ± 0.001
[0.8 ± 0.02]
0.02 ± 0.001
[0.5 ± 0.02]
PIN CONFIGURATION*
PIN CONNECTION
1, 2 SD
3, 7 SYNC**
4, 8
5, 9 Vin
6, 10 PWM/PSM
11, 1 2 N/ C
13, 17 GND
14, 18 Vout
15, 19 N/C
16, 20 GND
A
N/C
D
F
A
TAPE AND REEL
See Tape and Reel Information - Type B
www.vishay.com For technical questions, contact Function
12 Revision: 21-Jan-05
For marketing questions, contact FunctionPAK .marketing@vishay.com
PAK@vishay.com
Document Number: 10112
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