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Technical content

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 VIN 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 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 150 µA at 8V supply and 190µA at 24V supply. The G5934 has a NMOS open-drain output pin for power good indication. When V OUT > 1.5 x VIN 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).

Ordering Information

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 Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation. TQFN3X3-20 5 11 Thermal Pad ON2 ON1 ON3 ON4 DISC1 DISC2 DISC3 DISC4 DRIVER1 DRIVER2 DRIVER3 DRIVER4 REG VSENSE PG D_CAP VOUT CP CN VIN

21 GND

Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation. TQFN3X3-20 5 11 Thermal Pad ON2 ON1 ON3 ON4 DISC1 DISC2 DISC3 DISC4 DRIVER1 DRIVER2 DRIVER3 DRIVER4 REG VSENSE PG D_CAP VOUT CP CN VIN