●_________________________________________________________________________________ 5. Charge Pump ICs
49
XC6351A Series Charge Pump Voltage Inverter IC
General Description Features
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 powe
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.
Operating Voltage Range: 1.2V to 5.0V
Oscillator Frequency: 120kHz
35kHz ( custom )
Low Supply Current: 310
µ
A ( typ )
100
µ
A ( typ ; 35kHz )
High Efficiency: 90% (typ) ( RL = 2kΩ )
Stand-by Current: 2.0
µ
A (max.)
Ultra Small Package: SOT-26 mini mold
Pin Configuration Pin Assignment
56 4
21 3
GND CE/ C1+
C1- VIN VOUT
SOT-26
(TOP VIEW)
PIN
NUMBER SYMBOL FUNCTION
1 GND Ground
2 CE/ Chip Enable (-ve logic)
3 C1+ External Capacitor +Pin
4VOUT Reverse Output Pin
5VIN Power Supply Pin
6 C1- External Capacitor -Pin
Block Diagram
C1+ C1-
VIN
CE/
BufferOscillator
Chip
Enable
GND
P1 N2
N4N3
VOUT
Ordering Information
XC6351A①②③④⑤
SYMBOL DESCRIPTION
①②③ 120 Oscillation frequency 120kHz
035 Oscillation frequency 35kHz (custom)
④MPackage SOT-26
⑤R Embossed Tape Standard feed
L Embossed Tape Reverse feed