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G5931P1U Datasheet

  • G5931P1U

  • Switched-Capacitor Voltage Inverters with Shutdown

  • 7頁

  • GMT

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Global Mixed-mode Technology Inc.
G5931
Switched-Capacitor Voltage Inverters with Shutdown
Features
Inverts Input Supply Voltage
25mA Output Current with A Voltage Drop of
250mV
0.45mA Quiescent Current at 3.3V Supply
99% Voltage Conversion Efficiency
1.8V to 5V operating range
Require Only Two Capacitors
Over-Temperature Protected
2KV ESD Rating
8-Pin SOP Package
General Description
The G5931 is an unregulated charge-pump voltage
inverter which may be used to generate a negative
supply from positive input. Input voltages ranging from
+1.8V to +5V can be inverted into a -1.8V to -5V out-
put supply. The devices is ideal for both battery- pow-
ered and board level voltage conversion applications
with a typical operating current of 0.45mA at 3.3V
supply.
The G5931 can deliver 25mA output current with a
voltage drop of 250mV. The parts are over -temperature
protected.
Applications include cell phones, PDAs, and other
portable equipment. The devices is available in 8-pin
SOP Package.
Applications
Cell Phone
Small LCD Panels
Portable Equipment
Handy-Terminals, PDAs
Battery-Operated Equipment
Ordering Information
ORDER
NUMBER
G5931P1U
MARKING
G5931
TEMP.
RANGE
-40擄C to 85擄C
PACKAGE
(Pb free)
SOP-8
Note:
P1 : SOP-8
U: Tape & Reel
Pin Configuration
Typical Operating Circuit
G5931
NC
CP+
GND
CP-
1
2
3
4
8
7
6
5
IN
NC
NC
OUT
C1
1
2
NC
CP+
GND
IN
NC
NC
8
V
IN
(1.8V to 5V)
C3
7
6
5
C2
3
4
CP-
OUT
SOP-8
C1,C2,C3: 1碌F MLCC (X5R)
Ver: 0.2 Preliminary
Jun 22, 2005
TEL: 886-3-5788833
http://www.gmt.com.tw
1

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