Datasheet > RT4801A

RT4801A

更新时间： 2024-04-09 19:02:25

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
21页	1991K
描述
Dual Output LCD Bias for Smartphones and Tablets

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RT4801A 数据手册

RT4801A

Dual Output LCD Bias for Smartphones and Tablets

General Description

Features

The RT4801A is a highly integrated Boost and LDO

and inverting charge pump to generate positive and

negative output voltage. The output voltages can be

adjusted from 4V to 6V with 100mV steps by I²C

interface protocols. With its input voltage range of 2.5V

to 5.5V, RT4801A is optimized for products powered by

single-cell batteries and symmetrical output currents up

to 80mA. The RT4801A is available in the WL-CSP

-15B 1.31x2.07 (BSC) package.

 2.5V to 5.5V Supply Voltage Range

 Up to 90% Efficiency with Small Magnetics

 Support Up to 80mA Output Current

 Low 1A Shutdown Current

 Internal Soft-start Function

 Short Circuit Protection Function

 Over-Voltage Protection Function

 Over-Current Protection Function

 Over-Temperature Protection Function

 Elastic Positive and Negative Voltage On/Off

Control by ENP/ENN

Ordering Information

RT4801A-

 Voltage Output from 4V to 6V per 0.1V

 Low Input Noise and EMI

Package Type

WSC : WL-CSP-15B 1.31x2.07 (BSC)

 Output with Programmable Fast Discharge when

Output Voltage

IC Shutdown



50 : 5V

 Adjustable Output Voltage by I²C Compatible

Interface



60 : 6V

Note :

 Available in the 15-Ball WL-CSP Package

Richtek products are :

Applications

 RoHS compliant and compatible with the current

 TFT-LCD Smartphones

requirements of IPC/JEDEC J-STD-020.

 TFT-LCD Tablets

 Suitable for use in SnPb or Pb-free soldering processes.

 General Dual Power Supply Applications

Simplified Application Circuit

LXP

RT4801A

VIN

VOP

ENP

VON

ENN

SCL

BST

CF1

BST

SDA

GND CF2

PGND

is a registered trademark of Richtek Technology Corporation.

DS4801A-00 December 2015

www.richtek.com

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