G5934 Datasheet, PDF (1/1 Pages) Global Mixed-mode Technology Inc – High Voltage 1.5x Charge Pump with Load Switch Controller

Global Mixed-mode Technology Inc.
G5934
High Voltage 1.5x Charge Pump with Load Switch
Controller
Features
„ Input Range: 8V to 24V
„ Output Range: 12V to 36V
„ 150µA Quiescent Current at 8V Supply Voltage
and 190µA Quiescent Current at 24V Supply
Voltage
„ ±3% Regulated Output
„ Power Good Function
„ Power Good of Open Drain (Monitor AC V_IN
Only)
„ Embedded a 12-V LDO
„ 4 Control Signal Inputs
„ 4 12V-Drivers for external NMOS switches
„ 4 Discharging Networks for 22Ω
„ Over-Temperature Protection
„ Output Short Circuit Protection
„ TQFN3X3-20 Package
Applications
„ Notebook Computers
Ordering Information
ORDER
NUMBER
G5934RZ1U
Note: RZ: TQFN3X3-20
1: Bonding Code
U: Tape & Reel
Pin Configuration
MARKING
5934
General Description
The G5934 is a high-voltage switched-capacitor
charge pump that provides the regulated output volt-
age of 1.5x input voltage. Input voltages ranging from
8V to 24V can be converted into a 12V to 36V output
supply. The device is ideal for battery-powered con-
version applications in notebook computers with a
typical operating current of 150µA at 8V supply and
190µA at 24V supply.
The G5934 has a NMOS open-drain output pin for
power good indication. When VOUT > 1.5 x V_IN x 90%,
the NMOS will be turned off immediately and PG pin
will be pulled high by external resistor.
The G5934 contains an embedded 12-V LDO to pro-
vide the supply voltage to the drivers controlled by ON
signals. The discharging networks are connected to
the 22Ω resistor to shut down the low-voltage system
while control input signals ON are not ready.
The G5934 contains an over-temperature circuit to
protect the device under continuous output short cir-
cuit conditions.
The G5934 is available in TQFN3X3-20 package
(thermal pad included).
TEMP.
RANGE
-40°C to +85°C
PACKAGE
(Green)
TQFN3X3-20
ON1 ₁
ON2 ₂
ON3 ₃
ON4 ₄
DISC1 ₅
21 GND
Thermal
Pad
15 ^PG
14 ^VSENSE
13 ^REG
12 ^DRIVER4
11 ^DRIVER3
Ver: 0.3
Apr 19, 2011
TQFN3X3-20
Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation.
TEL: [phone]
http://www.gmt.com.tw
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