深圳市科瑞芯电子有限公司

微源半导体 LP6288 TQFN-40 (6*6) 用于LCD面板的多通道DC-DC转换器

General Description

The LP6288 is a multi-channel converter provides six regulated voltage, it includes a boost and three buck regulators and VGH and VGL charge pump for TFT LCDs. All output can be programmable via IIC.VAVDD boost and VHAVDD buck for the Source Driver and the Gamma Buffer. VIO buck and VCORE buck for T-CON. VGH and VGL dual charge pump for the Gate Driver or the Level Shifter. VGH rail can be temperature compensated with GIP technology.

Otherwise, High Voltage Stress Mode (HVS) for VAVDD and VHAVDD and the integrated VAVDD Isolation Switch is implemented. VCORE, VHAVDD, VGH, VGL, GPM and the VGH temperature compensation can be enabled and disabled by IIC programming.Other features include short circuit protection, thermal shutdown protection and under-voltage lockout (UVLO). 

The LP6288 is available in a space saving QFN-40 (0.5mm pitch) package.

Data parameters

Input voltage (V): 8.0~14

Output voltage (V): 13.5-19.8

Working frequency (Hz): 750K

Current limiting value (mA): 4250 (Adj)

Efficiency (%): 90

Features: I2C Programmable: AVDD, VGH, VGL, VGHM, Buck1, Buck2, Buck3 (HAVDD), Reset

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