Preliminary Datasheet

LP6284

Email: marketing@lowpowersemi.com www.lowpowersemi.com

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LP6284–00

Version 0.0 AUG.-2016

Multi-Channel DC-DC Converter

General Description

The LP6284 includes a high-performance boost

regulator, a low dropout linear regulator (LDO), a

gate pulse modulator (GPM), a voltage detector, a

VCOM buffer (unity-gain OPA), and a VGH charge

pump controller for active matrix TFT LCDs.

The converter is a high switching frequency (640kHz

or 1.2MHz) current-mode regulator with an integrated

16V N-Cha

nnel 0.2Ω MOSFET that allows the use of

ultra-small inductors and ceramic capacitors. It

provides fast transient response to pulsed loading

while achieving efficiency over 90%.

The low-dropout (LDO) linear regulator can supply up

to 350mA current while input voltage is 3.3V. It is

suitable for the supply voltage of the timing controller.

The VGH charge pump controller provides regulated

TFT Gate-On voltage. The regulation of the positive

charge pump is generated by the internal comparator

that senses the output voltage and compares it with

an internal reference.

Other features include thermal shutdown protection

and under-voltage lockout (UVLO). The

available in a space saving QFN-24 (0.5mm pitch)

package.

Order Information

LP6284

□ □

□

F: Pb-Free

Package Type

QVF: QFN-24

Features

Fast Transient Response to Pulsed Load

Adjustable Output Voltage (±1%)

Built-

In 16V, 2A, 0.2Ω N-MOSFET

High Efficiency Up to 90%

Programmable Soft-Start

Maximum Output Current : 350mA



Adjustable Output Voltage : 1.5V to VIN −

0.5V( ±1.5%)

Power-On Sequence Control

Power-On Delay and Falling Time

Flicker Compensator

Programmable Detecting Voltage (±2%)

Programmable Delay Time

Applications

Marking Information

Device

Marking

Package

Shipping

LP6284

LPS

LP6284

YWX

QFN-24

3K/REEL

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