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5. Charge Pump ICs
XC6351A Series銆€
Charge Pump Voltage Inverter IC
General Description
The XC6351A series are charge pump voltage inverter ICs that
have 4 MOSFETs built in. Since highly efficient negative volt-
ages can be generated with only 2 external capacitors con-
nected, GaAs bias power supplies & OpAmp's negative power
supplies etc., can be easily accomodated on a standard PCB.
A mini-molded, 6 pin, SOT-26 package provides for space
saving and makes high density mounting possible.
Low power consumption and high efficiency make this series
perfect for use with battery operated applications.
Since the IC's operations stop when output is shutdown via
the CE (chip enable) function, total power consumption re-
duction is possible in applications which use this IC.
DETAILS
Features
Operating Voltage Range:
1.2V to 5.0V
Oscillator Frequency:
120kHz
35kHz ( custom )
Low Supply Current:
310
碌
A ( typ )
100
碌
A ( typ ; 35kHz )
High Efficiency:
90% (typ) ( RL = 2k惟 )
Stand-by Current:
2.0
碌
A (max.)
Ultra Small Package:
SOT-26 mini mold
Pin Configuration
C1-
6
V
IN
5
V
OUT
4
Pin Assignment
PIN
NUMBER
1
2
3
4
1
GND
2
CE/
SOT-26
(TOP VIEW)
3
C1+
SYMBOL
GND
CE/
C1+
V
OUT
V
IN
C1-
FUNCTION
Ground
Chip Enable (-ve logic)
External Capacitor +Pin
Reverse Output Pin
Power Supply Pin
External Capacitor -Pin
5
6
Block Diagram
C1+
C1-
V
IN
P1
N2
N3
CE/
Chip
Enable
N4
V
OUT
Oscillator
Buffer
GND
Ordering Information
XC6351A鈶犫憽鈶⑩懀鈶?/div>
SYMBOL
鈶犫憽鈶?/div>
鈶?/div>
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120
035
M
R
L
DESCRIPTION
Oscillation frequency 120kHz
Oscillation frequency 35kHz (custom)
Package
SOT-26
Embossed Tape
Standard feed
Embossed Tape
Reverse feed
49
1
