RT8231A中文资料台湾立绮数据手册PDF规格书
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 页 |
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 | |
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 |