微源半导体 LP3100 DFN-12(1.5*2.4) TFT液晶面板双通道电荷泵电源解决方案

General Description

The LP3100 DC/DC converter integrates two low noise, high efficiency charge pumps for dual outputs, which consist of one inverting output and a step-up output. The device operates from 2.5V to 4.8V input and provides a step-up output voltage (VP) of 2x the input voltage. The negative inverting output (VN) is -1xinverted from the positive output VP.

The LP3100 is available in a small TDFN-12 pin package that features a bottom side exposed thermal pad to provide optimal heat dissipation. The small package size and low external parts count make the device ideally suitable for TFT LCD applications of mobile products. The LP3100 is rated to operate from – 40 ℃ to +85 ℃ ambient temperature range.

Features

◆ 2.5V to 4.8V Input Supply Voltage Range

◆ Adaptive 1.5x/ 2x mode switchover for positive voltage and -1x mode for negative voltage

◆ VP output range: 5.4V to 5.9V

◆ VN output range: -5.4V to -5.9V

◆ High current output:

◆ Vin=2.8V, Iout=±40mA;

◆ Vin=3.3V, Iout=±60mA;

◆ Built in Power On Sequence

◆ TDFN-12 1.5mmX2.4mm Package

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