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APW7276
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PMIC for LCD Bias Power
Features
- 13V/µs Slew Rate
- 10MHz, -3dB Bandwidth
General Description
The APW7276 integrates with a high-performance step-up converter, two charge pump controllers and one high current operational amplifiers for TFT-LCD applications. The main step-up regulator is a current-mode, fixed-frequency PWM switching regulator. The 1.5MHz switching frequency allows the usage of low-profile inductors and ceramic capacitors to minimize the thickness of LCD panel designs. The charge pump controllers provide regulated the gate-driver of TFT-LCD VGH and VGL supplies. The amplifiers are ideal for VCOM applications, with 100mA output short circuit current drive, 10MHz bandwidth, and 13V/µs slew rate. All inputs and outputs are rail-to-rail. The APW7276 is available in a tiny 3mmx3mm 20-pin QFN package (TQFN3x3-20).
Features
- Input Voltage Range from 2.7V to 5.5V
- Positive & Negative Charge Pump for VGH & VGL
- High Performance Operation Amplifier
- 13V/µs Slew Rate
- 10MHz, -3dB Bandwidth
- Control Output for External P-MOSFET to Support Completely Disconnecting the Battery
- Adjustable Power Sequence by External Capacitor
- Internal Soft-start
- Cycle By Cycle Current Limit
- Multiple Overload Protection
- Over-Temperature Protection
- Available in TQFN3x3-20 Package
- Halogen and Lead Free Available (RoHS Compliant)
General Description
The APW7276 integrates with a high-performance step-up converter, two charge pump controllers and one high current operational amplifiers for TFT-LCD applications. The main step-up regulator is a current-mode, fixed-frequency PWM switching regulator. The 1.5MHz switching frequency allows the usage of low-profile inductors and ceramic capacitors to minimize the thickness of LCD panel designs. The charge pump controllers provide regulated the gate-driver of TFT-LCD VGH and VGL supplies. The amplifiers are ideal for VCOM applications, with 100mA output short circuit current drive, 10MHz bandwidth, and 13V/µs slew rate. All inputs and outputs are rail-to-rail. The APW7276 is available in a tiny 3mmx3mm 20-pin QFN package (TQFN3x3-20).
