深圳市科瑞芯电子有限公司

微源半导体 LP6285 TQFN-16 (3*3) 用于LCD面板的多通道DC-DC转换器

General Description

The LP6285 includes a high-efficiency boost regulator, a VCOM buffer, and dual charge pump controller for active matrix TFT LCDs.

The converter is a high switching frequency current-mode regulator with an integrated N-Channel 200m? MOSFET that allows the use of small inductors and ceramic capacitors.

The Unity-Gain buffer can drive the VCOM voltage, that features high short-circuit current, fast slew rate and rail-to-rail inputs and outputs.

The positive/negative charge pump controller provides regulated Gate-On voltage. The regulation of the charge pump is generated by the internal comparator that senses the output voltage and compares it with an internal reference.

Other features include under-voltage protection, short circuit protection, thermal shutdown protection and under-voltage lockout (UVLO). The LP6285 is available in a space saving QFN-16 (0.5mm pitch) package.

Features

◆ Wide VIN Range: 2.5V to 5.5V

◆ 1.2MHz Current-Mode Boost Regulator

◆ Adjustable Output Voltage (±1%)

◆ Built-In 2.5A, 200mΩ N-MOSFET

◆ Internal Soft-Start

◆ Operation Amplifier for VCOM Buffer

◆ Adjustable Detecting Voltage

◆ Open-Drain Reset Output

◆ VGH and VGL Charge Pump

◆ Under-Voltage Protection

◆ Over-Temperature Protection

◆ Available in QFN-16 (3mm×3mm)

◆ RoHS Compliant

◆ Pb-Free Package

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