Self Selectable Output Voltage
Vishay
Buck or Boost with High Output Density Power
DESCRIPTION
The DC/DC converter provides fully integrated synchronous
Buck or Boost converter solution for the latest one-cell lithium
ion cellular phones. Its input voltage is between 2.5V to 6V
capable of delivering up to 4A output current. An external
resistor according to the formulas respectively, can adjust
an output voltage between 0.8V, 0.9V to 1.3V and 1.35V to
4.5V for Buck and 3.3V to 6V for Boost.
*The numbers are for illustration purpose only.
PRODUCT DESCRIPTION
INPUT
OUTPUT
TYPE
MOUNTING
TOPOLOGY
VOLTAGE (V)
VOLTAGE (V)
FX5545G001ADJ
BGA or LGA
Buck
2.7-6.0
1.35-4.5*
FX5545G201ADJ
BGA or LGA
Buck
2.7-6.0
1.35-4.5*
FX5545G005ADJ
BGA or LGA
Buck
2.7-6.0
1.35-4.5*
FX5545G105ADJ
BGA or LGA
Buck
2.7-6.0
1.35-4.5*
FX5545G205ADJ
BGA or LGA
Buck
2.7-6.0
1.35-4.5*
FX5545G305ADJ
BGA or LGA
Buck
2.7-6.0
1.35-4.5*
FX5545G008ADJ
BGA or LGA
Buck
2.5-6.0
0.8-4.5*
FX5545G018ADJ
BGA or LGA
Buck
2.5-6.0
0.9-1.3
FX5545G108ADJ
BGA or LGA
Buck
2.5-6.0
0.9-4.5*
FX5545G002ADJ
BGA or LGA
Boost
2.5-6.0
3.3-6.0
FX5545G202ADJ
BGA or LGA
Boost
2.5-6.0
3.3-6.0
FX5545G402ADJ
BGA or LGA
Boost
2.5-6.0
3.3-6.0
FX5545G006ADJ
BGA or LGA
Boost
2.5-6.0
3.3-6.0
FX5545G106ADJ
BGA or LGA
Boost
2.5-6.0
3.3-6.0
FX5545G206ADJ
BGA or LGA
Boost
2.5-6.0
3.3-6.0
*Note:
For higher output voltage please consult factory at FunctionPAK@Vishay.com
MAX OUTPUT
CURRENT (A)
0.6
1.0
1.5
2.0
2.5
3.0
3.0
3.0
4.0
0.3
0.6
1.0
1.5
2.0
2.5
OUTPUT
POWER (W)
1.5
3.0
5.0
6.5
8.2
10.0
10.0
3.6
15.0
1.5
3.0
5.0
9.0
12.0
15.0
R
EXT
/D
EXT
SELECTION
COMPONENT
TYPE
FX5545G001ADJ
FX5545G201ADJ
FX5545G005ADJ
FX5545G105ADJ
FX5545G205ADJ
FX5545G305ADJ
FX5545G008ADJ
TOPOLOGY
REQUESTED
OUTPUT VOLTAGE
1.35V - 4.5V
R
EXT
DEVICE
R
EXT
[KΩ] =
R
EXT
[KΩ] =
28.6
V
OUT
- 1.3
71.5
V
OUT
- 1.3
D
EXT
DEVICE
N/C
1.35V - 4.5V
N/C
0.8V - 1.3V
Buck
1.35V - 4.5V
FX5545G018ADJ
0.9V - 1.3V
0.9V - 1.3V
FX5545G108ADJ
1.35V - 4.5V
FX5545G002ADJ
FX5545G202ADJ
FX5545G402ADJ
FX5545G006ADJ
FX5545G106ADJ
FX5545G206ADJ
3.3V - 6.0V
Boost
3.3V - 6.0V
52
(V
OUT
- 0.75) V
OUT
71.5
R
EXT
[KΩ] =
V
OUT
- 1.3
66
R
EXT
[KΩ] =
(1.2V
OUT
- 1) V
OUT
66
R
EXT
[KΩ] =
(1.2V
OUT
- 1) V
OUT
R
EXT
[KΩ] =
R
EXT
[KΩ] =
R
EXT
[KΩ] =
71.5
V
OUT
- 1.3
28.6
V
OUT
- 1.3
71.5
V
OUT
- 1.3
D2-MCL4448
N/C
N/C
D2-BAR65V
N/C
N/C
R
EXT
[KΩ] =
N/C
Document Number: 10116
Revision 06-Apr-04
For technical questions, contact FunctionPAK@vishay.com
For marketing questions, contact FunctionPAK.marketing@vishay.com
www.vishay.com
51
Self Selectable Output Voltage
Vishay
PIN CONFIGURATION
PWM/PSM
SD
20 19 18 17
16 15 14 13
12 11 10
8
4
7
3
6
2
9
5
1
PWM/PSM
SYNC
SD
SYNC
Marked on Upper Side
Vin
Vout
Ext.
Resistor
Vin
Vref
Ext.
Diode
Vout
Ext.
Resistor
GND
For GXX2
PIN
1
2, 6
3, 7
4, 8
5, 9
10 - 12
13, 17
14, 18
15, 16
19, 20
CONNECTION
N/C
SD
PWM/PSM
SYNC
Vout
N/C
GND
N/C
Ext. Resistor
Vin
For GXX1; GXX5; GXX6 and G018
PIN
1, 2
3, 7
4, 8
5, 9
6, 10
11, 12
13, 17
14, 18
15, 19
16, 20
CONNECTION
SD
SYNC
N/C
Vin
PWM/PSM
N/C
GND
Vout
Ext. Resistor
GND
PIN
1, 2
3, 7
4, 8
5, 9
6, 10
For G008 and G108
CONNECTION
SD
SYNC
Vref
Vin
PWM/PSM
N/C
GND
Vout
Ext. Resistor
GND
11, 12
13, 17
14, 18
15, 19
16, 20
www.vishay.com
52
For technical questions, contact FunctionPAK@vishay.com
For marketing questions, contact FunctionPAK.marketing@vishay.com
Document Number: 10116
Revision 06-Apr-04