General Description

The SN18400P is an I2C interface programmable power management IC. The IC includes two synchronous AVDD/VGH boost converter, a two RESET function, a low dropout LDO, a VGL charge pump, a high performance VCOM with 7-bit Calibrator, 2-CH gamma, and a voltage detector. With available in a UQFN-28L 3.5x3.5 (FC) package, this device is suitable for TFT-LCD panel. The IC can operate from 2.5V to 5V input voltages. High frequency operation allows a compact PCB circuit area with small inductors and capacitor. Current-limit functions are provided for all internal-switch converters, and output-fault shutdown protects all converters against output-fault conditions. Programmable soft-start functions for all output voltage to limit input inrush current during startup.

Features

 2.5V to 5V Input Supply Voltage

 I2C Interface

 AVDD Current-Mode Sync. Boost Converter

 Programmable Output Voltage 7V to 13.5V

 High Efficiency (96)

 Operational Amplifier

 150mA Short Circuit Current

 Programmable 7-Bit VCOM Calibrator

 Low Dropout Voltage Linear Regulator

 Programmable Output Voltage 1.8V to 2.8V

 100mA Maximum Output Current

 VCORE/VIO Programmable Sync. Buck

 VCORE Programmable Output Voltage 0.8V to 2V

 VIO Programmable Output Voltage 1V to 2.8V

 VGH Current-Mode Sync. Boost Converter

 Negative Charge Pump Regulator with Internal Switch

 VGL Programmable Output Voltage −4.4V to −13V

 Programmable 2-CH Gamma

 Programmable Voltage Detector

 Over-Temperature Protection

 RoHS Compliant and Halogen Free

Applications

 Tablet Panels

 Notebook Panels