FX5545 GXXX XXX PI
Vishay
Fully Integrated DC/DC Converter 0.9V to 6V, 4A with
570W/in
3
Power Density, Efficiency up to 95%.
Simplified Lab assembly configuration for all models
FEATURES
• Specially designed for prototyping in Labs with limited
assembly equipment.
• Fully integrated DC/DC converter
• No external components required
• 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
• Programmable PWM/PSM controls
• Low output ripple
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
• Standard socket construction or plug-in for prototype
(use BGA for production)
• Temperature range: - 40°C to + 85°C
• Output power 15W
• Maximum continuous current 4A
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
ORDERING INFORMATION
FX
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
*PI is the abbreviation of Plug-In. When ordering please use an upper case i, not a lower case L.
Document Number: 10130
Revision 25-May-04
For technical questions, contact FunctionPAK@vishay.com
For marketing questions, contact FunctionPAK.marketing@vishay.com
www.vishay.com
15
5545
G
PI*
FX5545 GXXX XXX PI
Vishay
PIN DESCRIPTION AND RECOMMENDED BOARD LAYOUT
0.69 in
(17.5 mm)
RECOMMENDED BOARD LAYOUT
0.1 in (2.54 mm)
8
5
Ø Drill size
0.040 10 (1.02 mm)
0.1 in (2.54 mm)
Ø Pad Recommended 0.060 in 1
4
0.98 in
(25.0 mm)
0.1 in
(2.54 mm)
0.23in
(5.84 mm)
0.1 in
(2.54 mm)
0.31 in
(7.9 mm)
Use Standard Strip 0.1" (2.54 mm) Centers,
Double Row
All Positions Filled
PIN (0.64 mm)
Vin
Vout
PIN No:
1
2
3
4
5
6
7
8
Description
Vout
GND
Vin
PWM
SD
SYNC
GND
Rext
PWM
ENABLE CONVERTER
SD
DISABLE
PWM/PSM
Vin
PSM
SYNC
EXTERNAL
CLOCK
GND
Rext
Rext
View from bottom side
PIn 1
Load
PIN
SD
PWM/PSM
SYNC
Vin
Vout
GND
Rext.
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.
DESIGN REFERENCE GUIDE
- for details see www.vishay.com/integrated-modules/
MODEL
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
TYPE
DESCRIPTION
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
INPUT VOLTS
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
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
BUCK
BOOST
*Note:
For higher output voltage please consult factory at FunctionPAK@Vishay.com
**Note: FX5545G008ADJPI and FX5545G108ADJPI are available only at 1.35V - 4.5V output voltage
www.vishay.com
16
For technical questions, contact FunctionPAK@vishay.com
For marketing questions, contact FunctionPAK.marketing@vishay.com
Document Number: 10130
Revision 25-May-04
Legal Disclaimer Notice
Vishay
Disclaimer
All product specifications and data are subject to change without notice.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this
document or by any conduct of Vishay.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such
applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding
products designed for such applications.
Product names and markings noted herein may be trademarks of their respective owners.
Document Number: 91000
Revision: 18-Jul-08
www.vishay.com
1
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