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RT8231A中文资料台湾立绮数据手册PDF规格书

RT8231A
厂商型号

RT8231A

参数属性

RT8231A 封装/外壳为20-WFQFN 裸露焊盘;包装为管件;类别为集成电路(IC) > 特殊用途稳压器;RT8231A应用范围:控制器,DDR;产品描述:IC REG CTRLR DDR 1OUT 20LWQFN

功能描述

Complete DDR Memory Power Supply Controller

文件大小

306.53 Kbytes

页面数量

23

生产厂商 Richtek Technology Corporation
企业简称

RichTek台湾立绮

中文名称

立绮科技官网

原厂标识
数据手册

下载地址一下载地址二到原厂下载

更新时间

2024-10-31 20:00:00

RT8231A规格书详情

General Description

The RT8231A/B provides a complete power supply for

DDR2/DDR3/DDR3L/LPDDR3/DDR4/LPDDR4 memory

systems. It integrates a synchronous PWM Buck

controller with a 1.5A sink/source tracking linear regulator

and buffered low noise reference.

The PWM controller provides the low quiescent current,

high efficiency, excellent transient response, and high DC

output accuracy needed for stepping down high-voltage

batteries to generate low-voltage chipset RAM supplies

in notebook computers. The constant on-time PWM

control scheme handles wide input/output voltage ratios

with ease and provides 100ns “instant-on” response to

load transients while maintaining a relatively constant

switching frequency.

The RT8231A/B achieves high efficiency at a reduced cost

by eliminating the current-sense resistor found in

traditional current mode PWMs. Efficiency is further

enhanced by its ability to drive very large synchronous

rectifier MOSFETs. The Buck conversion allows this device

to directly step down high-voltage batteries for the highest

possible efficiency.

The 1.5A sink/source LDO maintains fast transient

response only requiring a 10μF ceramic output capacitor.

In addition, the LDO supply input is available externally

to significantly reduce the total power losses. The

RT8231A/B supports all of the sleep state controls placing

VTT at high-Z in S3 and discharging VDDQ, VTT and

VTTREF (soft-off) in S4/S5.

The RT8231A/B provides protections including OVP, UVP,

and thermal shutdown. The RT8231A/B is available in the

WQFN-20L 3x3 package.

Applications

 DDR2/DDR3/DDR3L/LPDDR3/DDR4/LPDDR4 Memory

Power Supplies

 Notebook computers

 SSTL18, SSTL15 and HSTL bus termination

产品属性

  • 产品编号:

    RT8231AGQW

  • 制造商:

    Richtek USA Inc.

  • 类别:

    集成电路(IC) > 特殊用途稳压器

  • 包装:

    管件

  • 应用:

    控制器,DDR

  • 电压 - 输入:

    4.5V ~ 26V

  • 输出数:

    1

  • 电压 - 输出:

    多重

  • 工作温度:

    -40°C ~ 85°C(TA)

  • 安装类型:

    表面贴装型

  • 封装/外壳:

    20-WFQFN 裸露焊盘

  • 供应商器件封装:

    20-WQFN(3x3)

  • 描述:

    IC REG CTRLR DDR 1OUT 20LWQFN

供应商 型号 品牌 批号 封装 库存 备注 价格
RICHTEK/立锜
22+
QFN
100000
代理渠道/只做原装/可含税
询价
RICHTEK
21+
WQFN3X3
1084
只做原装,绝对现货,原厂代理商渠道,欢迎电话微信查
询价
RICHTEK
20+
WQFN-20
283
一级代理,专注军工、汽车、医疗、工业、新能源、电力
询价
RICHTEK/立锜
23+
QFN
10500
原装元器件供应现货支持。咨询更多现货库存,支持样
询价
RICHTEK/立锜
24+
WQFN
55880
原装正品现货供应
询价
RICHTEK(立锜)
23+
QFN20EP(3x3)
7350
现货供应,当天可交货!免费送样,原厂技术支持!!!
询价
RICHTEK
1802+
QFN20
6528
只做原装正品现货,或订货假一赔十!
询价
RICHTEK/立锜
20+
QFN
880000
明嘉莱只做原装正品现货
询价
RICHTER
23+
WQFN20
20000
询价
RICHTEK/立锜
23+
QFN
3000
一级代理原厂VIP渠道,专注军工、汽车、医疗、工业、
询价