GMT G5934 Schematic [ru]
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
General Description
The G5934 is a high-voltage switched-capacitor
charge pump that provides the regulated output voltage 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 conversion 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 V
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 provide 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 circuit conditions.
The G5934 is available in TQFN3X3-20 package
(thermal pad included).
OUT > 1.5 x V
x 90%,
IN
ORDER
NUMBER
MARKING
TEMP.
RANGE
PACKAGE
(Green)
G5934RZ1U 5934 -40°C to +85°C TQFN3X3-20
Note: RZ: TQFN3X3-20
1: Bonding Code
U: Tape & Reel
Pin Configuration
ON1
Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation.
Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation.
ON1
ON2
ON2
ON3
ON3
ON4
ON4
DISC1
DISC1
VIN
VIN
20
20
1
1
2
2
3
3
4
4
5
5
6
6
DISC2
DISC2
TQFN3X3-20
TQFN3X3-20
CP
CP
CN
CN
19
19
18
18
21 GND
21 GND
Thermal
Thermal
Pad
Pad
7
7
8
8
DISC3
DISC4
DISC3
DISC4
VOUT
VOUT
17
17
9
9
DRIVER1
DRIVER1
D_CAP
D_CAP
16
16
PG
PG
15
15
VSENSE
VSENSE
14
14
REG
REG
13
13
DRIVER4
DRIVER4
12
12
DRIVER3
DRIVER3
11
11
10
10
DRIVER2
DRIVER2
Ver: 0.3
Apr 19, 2011
1
TEL: 886-3-5788833
http://www.gmt.com.tw
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