Description

The RT9933GQW is an electronic component model in the IC Chips product category. It is a high-performance boost regulator designed for active matrix thin-film transistor (TFT) liquid-crystal displays (LCDs). This component includes a boost regulator, a low dropout linear regulator (LDO), a gate pulse modulator (GPM), a voltage detector, a VCOM buffer, and a VGH charge pump controller.

Specifications and features

- Input Supply Voltage: 2.5V to 5.5V
- Boost Regulator: Current-Mode, 640kHz/1.2MHz
- Adjustable Output Voltage (±1%)
- Built-In 16V, 2A, 0.2Ω N-MOSFET
- High Efficiency Up to 90%
- Programmable Soft-Start
- Over-Current Protection
- Output Under-Voltage Protection
- Low Dropout Voltage Linear Regulator: Adjustable Output Voltage (±1.5%), Maximum Output Current of 350mA
- GPM Controller with Adjustable Falling Time and Power-On Delay
- Flicker Compensator
- Power-On Sequence Control
- Low Voltage Detector: Programmable Detecting Voltage (±2%) and Delay Time
- Unity-Gain Operation Amplifier for VCOM Buffer
- Charge Pump for VGH regulation
- Over-Temperature Protection
- Thin 24 Lead VQFN Package
- RoHS Compliant and 100% Lead (Pb)-Free

Application Scenarios

The RT9933GQW is specifically designed for use in active matrix TFT LCDs. It is suitable for applications that require regulated supply voltage for panel source driver ICs, timing controller supply voltage, flicker compensation circuit, and VCOM voltage driving.

Comparison

- High-performance boost regulator
- Low dropout linear regulator for timing controller supply
- Gate pulse modulator for flicker compensation and power-on sequence control
- Voltage detector with programmable detecting voltage and delay time
- VCOM buffer with high short-circuit current, fast slew rate, and wide bandwidth
- VGH charge pump controller for regulated TFT Gate-On voltage
- Compact thin 24 Lead VQFN package

- No specific disadvantages identified for the RT9933GQW model.