
CXEP3474线性调节器精确和快速的响应在负载瞬变中跟踪参考电压的源/汇能力高达1.8ASTR(S3)模式的关闭功能带电阻器的可调输出电压内置软启动集成功率MOS
| 产品型号: | CXEP3474 |
| 产品类型: | EEPROM存储器 |
| 产品系列: | 存储器类(EEPROM) |
| 产品状态: | 量产 |
| 浏览次数: | 41 次 |
产品简介
支持DDR I(1.25 VTT)、DDR II(0.9 VTT)、DDR III(0.75 VTT)、DDR IIIL(0.675VTT)和DDR IV(0.6 VTT)要求
VCNTL电源电压:3V至5.5V
终端电源电压:1.2V至3.6V
输出陶瓷电容器稳定
·过电流保护
热关机保护
STR(S3)模式的关闭功能
带电阻器的可调输出电压
内置软启动
功率MOS集成
技术参数
| 输入电压范围 (VIN) | V ~ 1.2~3.6VV |
|---|---|
| 输出电流 (IOUT) | 1.8AA |
| 封装类型 | SOP-8(FD)/MSOP-8(FD) |
| Capacity | IVREF (mA):-- |
| Erase cycles | Isupply (μA):700 |
| Features | Isource (A):1.8 |
| Application | Isink (A):1.8 |
| Voltage range | VCNTL (V):3~5.5 |
产品详细介绍
目录
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产品概述 返回TOP
The CXEP3474 is a linear regulator designed to meet the JEDEC SSTL (Series Stub Termination Logic) specifications in DDRI/II/III/IIIL/IV –SDRAM systems. It provides accurate and fast response with up to 1.8A source/sink ability in load transient to track reference voltage. The terminated voltage can be generated by two external resistors or programmed by forcing VREF pin at a desired voltage. Also the CXEP3474 operate in low power consumption as low as 0.7mA and it has a shutdown function by setting VREF lower than 0.15V then the VTT is turned off and discharged via an internal MOSFET. This function obtains low quiescent current as 50μA for STR mode.
产品特点 返回TOP
„ Support DDR I (1.25 VTT), DDR II (0.9 VTT), DDR III (0.75 VTT), DDR IIIL (0.675VTT) and DDR IV (0.6 VTT) Requirements
„ VCNTL Supply Voltage: 3V to 5.5V
„ Termination Supply Voltage : 1.2V to 3.6V
„ Stable with Output Ceramic Capacitor
„ Over Current Protection
„ Thermal Shutdown Protection
„ Shutdown Function for STR (S3) Mode
„ Adjustable Output Voltage with Resistors
„ Built-In Soft-Start
„ Power MOS integrated
„ SOP-8 (FD) and MSOP-8 (FD) Package
„ RoHS Compliant
应用范围 返回TOP
„ DDR I/II/III/IIIL/IV Memory Termination
„ SSTL_3, SSTL_2, SSTL_18, SSTL_15
„ Notebook/Desktop/Server
„ Telecom/Datacom, GSM Base Station, LCD-TV/PDP-TV, Copier/Printer, Set-Top Box
技术规格书(产品PDF) 返回TOP
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产品封装图 返回TOP

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DDR Terminator |
|||||||||
|
Part NO. |
VDDQ (V)min |
VDDQ (V)max |
VCNTL (V) |
Isource (A) |
Isink (A) |
IVREF (mA) |
Isupply (μA) |
Note |
Package |
|
1.2 |
3.6 |
3.3~5.5 |
3 |
3 |
10 |
750 |
DDR3/3L,LPDDR2/3 |
TDFN2X2-10 |
|
|
1.2 |
3.6 |
3~5.5 |
1.8 |
1.8 |
-- |
700 |
DDR1/2/3/3L |
SOP8(FD)/MSOP-8(FD) |
|
|
1.2 |
3.6 |
3.3~5.5 |
3 |
3 |
-- |
750 |
DDR1/2/3/3L |
SOP8(FD) |
|
|
1.2 |
3.6 |
3~5.5 |
2 |
2 |
-- |
1300 |
DDR1/2/3 |
SOT23-5/SOP8/ MSOP8(FD) |
|
|
1.6 |
5.5 |
1.6~5.5 |
1.5 |
1.5 |
0.03 |
280 |
DDR1/2 |
SOP8(FD) |
|
|
1.2 |
3.6 |
3~5.5 |
4~3 |
4~3 |
10 |
800 |
DDR1/2/3/3L |
MSOP10(FD)/MSOP8(FD) |
|
|
1.2 |
3.6 |
3~5.5 |
4~3 |
4~3 |
10 |
900 |
DDR1/2/3/3L |
MSOP8/SOP8(FD) |
|
|
1.2 |
3.6 |
3~5.5 |
4 |
4 |
10 |
900 |
DDR1/2/3 |
SOP8(FD) |
|

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