FX5545 GXXX XXX PI
3
Fully Integrated DC/DC Converter 0.9V to 6V, 4A with 570W/in Power Density,
Efficiency up to 95%. Simplified Lab assembly configuration for all models
FEATURES
Vishay
PIN DESCRIPTION AND RECOMMENDED BOARD LAYOUT
• Specially designed for prototyping in Labs with limited
assembly equipment.
• Fully integrated DC/DC converter
• No external components required
0.1 in (2.54 mm)
8
5
0.69 in
(17.5 mm)
RECOMMENDED BOARD LAYOUT
• Buck or Boost configurations
• High efficiency over large load range
• 100% duty cycle
• Power density - more than 570W/inch
3
• 1µA shutdown current
• 2.5V to 6V input range (1Li+ and 3-cell NiCd or NiMH cells)
• 0.9V to 6V output voltage
0.31 in
(7.9 mm)
0.1 in
(2.54 mm)
Ø Drill size
0.040 10 (1.02 mm)
0.1 in (2.54 mm)
0.98 in
(25.0 mm)
Ø Pad Recommended 0.060 in
1
4
Use Standard Strip 0.1" (2.54 mm) Centers,
Double Row
All Positions Filled
0.23in
(5.84 mm)
PIN (0.64 mm)
• Programmable PWM/PSM controls
• Low output ripple
PIN No:
Description
0.1 in
(2.54 mm)
Vin
Vout
ENABLE CONVERTER
SD
DISABLE
PWM
Vin
PSM
PWM/PSM
• Standard socket construction or plug-in for prototype
(use BGA for production)
• Temperature range: - 40°C to + 85°C
PIn 1
View from bottom side
Rext
Rext
SYNC
EXTERNAL
CLOCK
GND
Load
• Output power 15W
• Maximum continuous current 4A
1
2
3
4
5
6
7
8
Vout
GND
Vin
PWM
SD
SYNC
GND
Rext
PIN
DESCRIPTION
Logic low on SD pin shuts down the FunctionPAK completely and decreases current consumption to less than 1µA.
Logic high =PWM mode, logic low =PSM mode. In PSM mode synchronous rectification is disabled.
Externally controlled synchronization signal. Logic high to low transition forces the clock synchronization.
If not used the pin must be connected to Vin or logic high.
Input supply voltage
Output voltage
Ground
Included inside the package for all fixed output voltage converters. To be added externally for all self-selected output voltages.
APPLICATION
PWM/PSM
SYNC
Vin
Vout
GND
Rext.
SD
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
• 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
DESIGN REFERENCE GUIDE
- for details see www.vishay.com/integrated-modules/
MODEL
TYPE
DESCRIPTION
INPUT VOLTS
ORDERING INFORMATION
G
PI*
FX
5545
BUCK
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.
BOOST
*PI is the abbreviation of Plug-In. When ordering please use an upper case i, not a lower case L.
Revision 25-May-04
PLUG-IN VERSION
FX5545G001XVXPI
FX5545G201XVXPI
FX5545G018XVXPI
FX5545G005XVXPI
FX5545G105XVXPI
FX5545G205XVXPI
FX5545G008XVXPI**
FX5545G305XVXPI
FX5545G108XVXPI**
FX5545G002XVXPI
FX5545G202XVXPI
FX5545G402XVXPI
FX5545G006XVXPI
FX5545G106XVXPI
FX5545G206XVXPI
CIRCUIT
IDENTIFIER
G001
G201
G018
G005
G105
G205
G008
G305
G108
G002
G202
G402
G006
G106
G206
1.5W, 0.6A
3W, 1.0A
3.6W, 3.0A
5W, 1.5A
6.5W, 2.0A
8W, 2.5A
10W, 3.0A
10W, 3.0A
15W, 4.0A
1.5W, 0.3A
3W, 0.6A
5W, 1.0A
9W, 1.5A
12W, 2.0A
15W, 2.5A
2.5 – 6.0
2.5 – 6.0
2.5 – 6.0
2.5 – 6.0
2.5 – 6.0
2.5 – 6.0
2.5 – 6.0
2.5 – 6.0
2.5 – 6.0
2.5 – 6.0
2.5 – 6.0
2.5 – 6.0
2.5 – 6.0
2.5 – 6.0
2.5 – 6.0
*Note:
For higher output voltage please consult factory at FunctionPAK@Vishay
AK@Vishay
ishay.com
**Note: FX5545G008ADJPI and FX5545G108ADJPI are available only at 1.35V - 4.5V output voltage
OUTPUT VOLTS
@ AMPS
1.35 - 4.5* @ 0.6 max
1.35 - 4.5* @ 1.0 max
0.9 - 1.3 @ 3.0 max
1.35 - 4.5* @ 1.5 max
1.35 - 4.5* @ 2.0 max
1.35 - 4.5* @ 2.5 max
0.9 - 4.5* @ 3.0 max
1.35 - 4.5* @ 3.0 max
0.9 - 4.5* @ 4.0 max
3.3 - 6.0 @ 0.3 max
3.3 - 6.0 @ 0.6 max
3.3 - 6.0 @ 1.0 max
3.3 - 6.0 @ 1.5 max
3.3 - 6.0 @ 2.0 max
3.3 - 6.0 @ 2.5 max
For technical questions, contact FunctionPAK@vishay.com
For marketing questions, contact FunctionPAK.marketing@vishay.com
VMN-PT9100-0406