Document Number: 10122 For technical questions, contact FunctionPAK@vishay.com
For marketing questions, contact FunctionPAK.marketing@vishay.com
www.vishay.com
Revision: 18-Jan-05 15
FX5545G006
Vishay
Industry Smallest and Low Profile
9W 1.5A DC/DC Boost 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 330W/inch3
•1µA shutdown current
•2.5V to 6V input range (1Li+ and 3-cell NiCd or NiMH cells)
•3.3V to 6V output voltage
•Programmable PWM/PSM controls
•Low output ripple
•BGA construction
•Temperature range: - 40°C to + 85°C
•No external components needed
•Output power 9W
•Maximum current 1.5A
•Low profile
The DC/DC converter is a programmable topology
synchronized Boost 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 2.5V to 6V. An additional flexibility is
provided with topology programmibility 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
•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 5545 G006
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.
www.vishay.com For technical questions, contact FunctionPAK@vishay.com
For marketing questions, contact FunctionPAK.marketing@vishay.com
Document Number: 10122
16 Revision: 18-Jan-05
FX5545G006
Vishay
DIMENSIONS in inches [millimeters]
L0.58 ± 0.01
[14.7 ± 0.25]
W0.48 ± 0.01
[12.2 ± 0.25]
A0.1 ± 0.01
[2.54 ± 0.25]
B0.09 ± 0.01
[2.29 ± 0.25]
C0.09 ± 0.01
[2.27 ± 0.25]
T0.126 max
[3.2 max]
Ball Diameter 0.03 ± 0.001
[0.762 ± 0.025]
A
C
A
B
W
L
T
*Note: Pin Description application note is available at
www.vishay.com/doc?10119
**Note: if not used must be connected to Vin.
BOTTOM SIDE
20 19 18 17
16 15 14 13
12 11 10 9
8765
4321
Marked on Upper Side
PIN CONFIGURATION*
PIN CONNECTION
1, 2 SD
3, 7 SYNC**
4, 8 N/C
5, 9 Vin
6, 10 PWM/PSM
11, 12 N/C
13, 17 GND
14, 18 Vout
15, 19 N/C
16, 20 GND
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]
TAPE AND REEL
See Tape and Reel Information - Type B
D
F
A
A
Document Number: 10122 For technical questions, contact FunctionPAK@vishay.com
For marketing questions, contact FunctionPAK.marketing@vishay.com
www.vishay.com
Revision: 18-Jan-05 17
FX5545G006
Vishay
*Note: WD = Power Dissipated
STANDARD ELECTRICAL SPECIFICATIONS
PARAMETER UNIT CONDITION MIN TYP MAX
Input
Voltage Range VDC 2.5 6
Quiescent Current µA PSM mode 200
Soft Start Time ms TSS for Vout = 6.0V 19
TSS for Vout = 5.0V 19
TSS for Vout = 3.3V 19
SD, PWM/PSM,SYNC
Logic High V VH2.4
Logic Low V VL0.8
Normal Mode µA IDD 750
PSM Mode µA IDD 250
Shutdown Mode µA IDD 1
Shutdown Time ms TSS for Vout = 6.0V 15
TSS for Vout = 5.0V 14
TSS for Vout = 3.3V 14
Insulation
Test Voltage VAC 60Hz 60sec 750
Resistance ΩVISO = 500VDC 1 x 1011
Leakage Current nA VISO = 500VDC 5
Output
Power W 9
Voltage VDC 3.3 to 6
Voltage Tolerance % at 25 °C Ambient Temperature - 3 3
Temp. Coefficient %/°C 0.03
Ripple and Noise mVpp DC to 20MHz 60
General
Package Weight gr. 1.5
Oscillator
Frequency KHz 670
SYNC Range KHz FSYNC/FOSC 1.2 1.5
Temperature
Operation °C - 40 + 85
Storage °C - 55 + 125
Operating Junction Temp. °C Tj150
Thermal Impedance °C/WD*θJA 82
Rise Time
Rise Time (PWM mode): Vin = 5V; Vout = 6V; lout = 1A
Fall Time
Fall Time (PWM mode): Vin = 5V; Vout = 6V; lout = 1A
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Document Number: 10122
18 Revision: 18-Jan-05
FX5545G006
Vishay
Rise Time
Rise Time (PWM mode): Vin = 4V; Vout = 6V; lout = 1A
Fall Time
Fall Time (PWM mode): Vin = 4V; Vout = 6V; lout = 1A
Rise Time (PWM mode): Vin = 4.5V; Vout = 5V; lout = 1A Fall Time (PWM mode): Vin = 4.5V; Vout = 5V; lout = 1A
Rise Time (PWM mode): Vin = 3.5V; Vout = 5V; lout = 1A Fall Time (PWM mode): Vin = 3.5V; Vout = 5V; lout = 1A
Rise Time (PWM mode): Vin = 3V; Vout = 3.3V; lout = 1A Fall Time (PWM mode): Vin = 3V; Vout = 3.3V; lout = 1A
FX5545G006
Vishay
Document Number: 10122 For technical questions, contact FunctionPAK@vishay.com
For marketing questions, contact FunctionPAK.marketing@vishay.com
www.vishay.com
Revision: 18-Jan-05 19
5.9
5.92
5.94
5.96
5.98
6
6.02
6.04
6.06
6.08
6.1
0 0.5 1 1.5 2
Vout vs. Iout
Vout (v)
Iout (A)
Vin=4v
Vin=4.5v
Vout vs. Vin
Vout (v)
Vin (v)
5.9
5.92
5.94
5.96
5.98
6
6.02
6.04
6.06
6.08
6.1
2.5 3 3.5 4 4.5 5 5.5 6
Iout=1A
Iout=1.5A
0
10
20
30
40
50
60
70
80
90
100
0 0.5 1 1.5 2
Iout (A)
Vin=4.5v
Vin=4v
Efficiency vs. Iout
Efficiency (%)
Iout(A)
∆Temperature vs. Iout
Above 25ºC Ambient Temperature
∆Temperature (ºC)
0
5
10
15
20
25
30
35
0 0.5 1 1.5 2
Vin=4.5v
Vin=4v
Vout vs. Iout
4.8
4.85
4.9
4.95
5
5.05
5.1
5.15
5.2
0 0.5 1 1.5 2
Iout (A)
Vout (v)
Vin=4v
Vin=3.5v
Vout vs. Vin
Vin (v)
Vout (v)
4.8
4.85
4.9
4.95
5
5.05
5.1
5.15
5.2
2 2.5 3 3.5 4 4.5 5
Iout=1A
Iout=1.5A
Efficiency vs. Iout
0
10
20
30
40
50
60
70
80
90
100
0 0.5 1 1.5 2 2.5
Iout (A)
Efficiency (%)
Vin=4v
Vin=3.5v
∆Temperature vs. Iout
Above 25°C Ambient Temperature
Iout (A)
∆Temperature (°C)
0
5
10
15
20
25
30
0 0.5 1 1.5 2
Vin=3.5v
Vin=4
PWM MODE 6V
PWM MODE 5V
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For marketing questions, contact FunctionPAK.marketing@vishay.com
Document Number: 10122
20 Revision: 18-Jan-05
FX5545G006
Vishay
Vout vs. Iout
3.27
3.28
3.29
3.3
3.31
3.32
3.33
0 0.5 1 1.5 2
Iout (A)
Vout (v)
Vin=3v
Vin=2.7v
Vout vs. Vin
3.27
3.28
3.29
3.3
3.31
3.32
3.33
2.4 2.5 2.6 2.7 2.8 2.9 3 3.1
Vin (v)
Vout (v)
Iout=1A
Iout=1.5A
Efficiency vs. Iout
0
10
20
30
40
50
60
70
80
90
100
0 0.5 1 1.5 2
Iout (A)
Efficiency (%)
Vin=2.7v
Vin=3v
∆Temperature vs. Iout
Above 25°C Ambient Temperature; Vin=2.5V
0
5
10
15
20
25
30
0 0.5 1 1.5 2
Iout (A)
∆Temperature (°C)
Vout vs. Iout
5.9
5.92
5.94
5.96
5.98
6
6.02
6.04
6.06
6.08
6.1
0 0.05 0.1 0.15 0.2 0.25
Iout (A)
Vout (v)
Vin=5v
Vin=3v
Vout vs. Vin
5.94
5.96
5.98
6
6.02
6.04
6.06
6.08
6.1
2 2.5 3 3.5 4 4.5 5 5.5 6
Vin (v)
Vout (v)
Iout=0.1A
Iout=0.2A
Efficiency vs. Iout
0
10
20
30
40
50
60
70
80
90
100
0 0.05 0.1 0.15 0.2 0.25
Iout (A)
Efficiency (%)
Vin=5v
Vin=4v
PWM MODE 3.3V
PSM MODE 6V
FX5545G006
Vishay
Document Number: 10122 For technical questions, contact FunctionPAK@vishay.com
For marketing questions, contact FunctionPAK.marketing@vishay.com
www.vishay.com
Revision: 18-Jan-05 21
Vout vs. Iout
4.85
4.9
4.95
5
5.05
5.1
0 0.05 0.1 0.15 0.2 0.25
Iout (A)
Vout (v)
Vin=4v
Vin=3v
Vout vs. Vin
4.9
4.92
4.94
4.96
4.98
5
5.02
5.04
5.06
5.08
5.1
2 2.5 3 3.5 4 4.5 5
Vin (v)
Vout(v)
Iout=0.1A
Iout=0.2A
0
10
20
30
40
50
60
70
80
90
100
0 0.05 0.1 0.15 0.2 0.25
Iout (A)
Efficiency (%)
Vin=5v
Vin=4v
Vout vs. Iout
3.2
3.22
3.24
3.26
3.28
3.3
3.32
3.34
3.36
3.38
3.4
0 0.05 0.1 0.15 0.2 0.25
Iout (A)
Vout (v)
Vin=3v
Vin=2.5v
3.2
3.22
3.24
3.26
3.28
3.3
3.32
3.34
3.36
3.38
3.4
2.4 2.5 2.6 2.7 2.8 2.9 3 3.1
Vout (v)
Vout vs. Vin
Iout=0.2A
Iout=0.1A
Vin (v)
0
10
20
30
40
50
60
70
80
90
100
0 0.05 0.1 0.15 0.2 0.25
Efficiency (%)
Efficiency vs. Iout
Vin=3v
Vin=2.7v
Iout
(
A
)
PSM MODE 5V
PSM MODE 3.3V
