G5931 Datasheet, PDF (1/1 Pages) Global Mixed-mode Technology Inc – Switched-Capacitor Voltage Inverters with Shutdown

Global Mixed-mode Technology Inc.
G5931
Switched Capacitor Voltage Inverter
Features
„ Inverts Input Supply Voltage
„ 25mA Output Current with a Voltage Drop of
250mV
„ 0.45mA Quiescent Current at 3.3V Supply Voltage
„ 99% Voltage Conversion Efficiency
„ 1.8V to 5V operating range
„ Require Only Two Capacitors
„ Over-Temperature Protection
„ 8-Pin SOP Package
Applications
„ Cell Phone
„ Small LCD Panels
„ Portable Equipment
„ Handy-Terminals, PDAs
„ Battery-Operated Equipment
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.
Ordering Information
ORDER
NUMBER
MARKING
G5931P1U G5931
Note: P1 : SOP-8
U: Tape & Reel
TEMP.
RANGE
-40°C to 85°C
PACKAGE
(Pb free)
SOP-8
Pin Configuration
Typical Application Circuit
NC 1
CP+ 2
GND 3
CP- 4
G5931
SOP-8
8 IN
7 NC
6 NC
5 OUT
1
NC
2
CP+
8
IN
NC 7
3
C1
GND
NC 6
4
CP-
5
OUT
C1,C2,C3: 1µF MLCC (X5R)
V_IN (1.8V to 5V)
C3
C2
Ver: 1.0
Sep 09, 2005
TEL: [phone]
http://www.gmt.com.tw
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