APW7276

APW7276 PMIC for LCD Bias Power Features Input Voltage Range from 2.7V to 5.5V Positive & Negative Charge Pump for VGH & VGL High Performance Operation Amplifier - +100mA Output Short Circuit Current - 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 stepup 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 3mm x 3mm 20-pin QFN package (TQFN3x3-20). Applications Panel Simplified Application Circuit Pin Configuration GND 16 FB 17 BSW 18 VIN 19 CDLY 20 Step-up Converter VCOM GND REF FBN GND DR...