LP6283–00

Version 0.0

Jul.-2016

Email: marketing@lowpowersemi.com

www.lowpowersemi.com

Page 1 of 10

Preliminary Datasheet

LP6283

Power Management ICs

for TV / Monitor

General Description

The LP6283 generates all the supply rails for thin-film

transistor (TFT) liquid-crystal display (LCD) panels in TVs

and monitors. It includes boost and buck regulators, VGH

and VGL charge pump regulators, gate pulse modulator

(GPM) , HV LDO, voltage detector (XAO) and VCOM OP.

The LP6283 supports input voltage from 8V to 14V and is

optimized for LCD TV panel and LCD monitor

applications running directly from 12V supply.

The boost and buck regulators feature internal power

MOSFETs and high-frequency operation, allowing the

use of small inductors and capacitors, for in a compact

solution. Both switching regulators use fixed-frequency,

current-mode control architectures, providing fast

load-transient response and easy compensation.

The VGH and VGL charge-pump regulators provide

supply voltages for the TFT gate driver. Both output

voltages can be adjusted with external resistive voltage

dividers.

Order Information

LP6283

□ □ □

F: Pb-Free

Package Type

QVF : TQFN-48

Applications



LCD TV/Monitor

Features



8V to 14V Supply Input Voltage Range



Current-Mode Boost Regulator



20V 3.5A 0.1

Ω Internal N-MOSFET



Programmable Over Current Protection



Programmable Soft-Start

 Current-Mode Buck Regulator



16.5V 2A 0.15

Ω Internal N-MOSFET



Over Current Protection



Adjustable Output Voltage from 1.8V to 3.3V



Continuous Output Current 50mA



Continuous Output Current 50mA



18V to 35V Positive Supply Input



Power-On/Off Sequence Control



On-Chip

GPM

Controller

with

Adjustable

Falling Time and Falling Stop Voltage



Adjustable Detecting Voltage (

±1%)



N-Channel Open-Drain Output



5V to 20V Input Supply Voltage



±300mA Output Short-Circuit Current for 1ms



45V/μs Slew Rate



20MHz,

−3dB Bandwidth



5V to 20V Input Supply Voltage



Adjustable Output Voltage (

±0.5%)



Over Current Protection (60mA)



Low Dropout Voltage 0.5V (60mA)

Drive Signal



Pb-Free Package

Marking Information

Device

Marking

Package

Shipping

LP6283

LPS

LP6283

YWX

TQFN-48

Y: Y is year code. W: W is week code. X: X is series number.