Datasheet > RAA489800

RAA489800

更新时间： 2024-11-24 14:57:39

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
3页	208K
描述
Bidirectional Buck-Boost Voltage Regulator

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RAA489800 数据手册

Short-Form Datasheet

RAA489800

Bidirectional Buck-Boost Voltage Regulator

The RAA489800 is a bidirectional, buck-boost voltage

regulator that provides buck-boost voltage regulation

and protection features. The advanced Renesas

R3™ Technology provides high light-load efficiency,

fast transient response, and seamless DCM/CCM

transitions.

Features

▪ Bidirectional buck, boost, and buck-boost operation

▪ Configurable for 4-switch buck-boost or 2-switch

buck operation

▪ Input voltage range: 3.8V to 23V (no dead zone)

▪ Output voltage: up to 21V

The RAA489800 takes input power from a wide range

of DC power sources up to 23V (such as conventional

AC/DC adapters (ADP), USB PD ports, travel ADP)

and safely converts it to a regulated voltage up to

21V. The RAA489800 can also convert a wide range

DC power source connected at its output (system

side) to a regulated voltage to its input (ADP side).

This bidirectional buck-boost regulation feature

makes the RAA489800’s application very flexible. In

addition to 4-switch buck-boost configuration, it can

also support 2-switch Buck mode operation.

▪ Up to 1MHz switching frequency

▪ Pin programmable soft-start time

▪ LDO output for VDD and VDDP

▪ System FAULT status ALERT function

▪ Input/output internal discharge function

▪ Active switching for negative voltage transitions

▪ Pass Through mode in both directions

▪ Forward and Reverse mode enable pins

▪ OCP, OVP, UVP, and OTP protection

▪ Absolute overvoltage protection

The RAA489800 includes various system operation

functions such as the Forward mode enable pin,

Reverse mode enable pin, programmable soft-start

▪ SMBus and auto-increment I C compatible

time, and adjustable forward and reverse V

. It also

▪ Pb-free (RoHS compliant)

OUT

has forward and reverse power-good indicators. The

protection functionalities include OCP, OVP, UVP, and

OTP.

▪ 32 Ld 4x4 TQFN package

▪ UL 2367, IEC 62368-1: File No. E520109

Applications

The RAA489800 has serial communication through

SMBus/I C that allows programming of many critical

▪ Tablets, Ultrabooks, power banks, mobile devices,

parameters to deliver a customized solution. These

programming parameters include, but are not limited

to: output current limit, input current limit, and output

voltage setting.

and USB-C

R16DO0012EU0102 Rev.1.02

Oct 19, 2021

Page 1

12 3

中文翻译

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