Datasheet > BD3538F_10

BD3538F_10

更新时间： 2024-02-14 01:00:54

品牌	Logo	应用领域
罗姆 - ROHM		稳压器动态存储器双倍数据速率
页数	文件大小	规格书
11页	379K
描述
Termination Regulators for DDR-SDRAMs

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BD3538F_10 数据手册

High Performance Regulators for PCs

Termination Regulators

for DDR-SDRAMs

BD3538F,BD3538HFN

No.10030EAT33

Description

BD3538F/HFN is a termination regulator compatible with JEDEC DDR-SDRAM, which functions as a linear power supply

incorporating an N-channel MOSFET and provides a sink/source current capability up to 1A respectively. A built-in

high-speed OP-AMP specially designed offers an excellent transient response. Requires 3.3 volts or 5.0 volts as a bias

power supply to drive the N-channel MOSFET. Has an independent reference voltage input pin (VDDQ) and an

independent feedback pin (VTTS) to maintain the accuracy in voltage required by JEDEC, and offers an excellent output

voltage accuracy and load regulation. Also has a reference power supply output pin (VREF) for DDR-SDRAM or a memory

controller. When EN pin turns to “Low”, VTT output becomes “Hi-Z” while VREF output is kept unchanged, compatible with

“Self Refresh” state of DDR-SDRAM.

Features

1) Incorporates a push-pull power supply for termination (VTT)

2) Incorporates a reference voltage circuit (VREF)

3) Incorporates an enabler

4) Incorporates an undervoltage lockout (UVLO)

5) Employs SOP8 package

6) Employs HSON8 package

7) Incorporates a thermal shutdown protector (TSD)

8) Operates with input voltage from 2.7 to 5.5 volts

9) Compatible with Dual Channel (DDR-II)

Use

Power supply for DDR I / II / III - SDRAM

●Absolute Maximum Ratings

Ratings

BD3538HFN

7 ^*1*2

Parameter

Symbol

Unit

BD3538F

7 ^*1*2

Input Voltage

VCC

VEN

Enable Input Voltage

Termination Input Voltage

VDDQ Reference Voltage

Output Current

7 ^*1*2

VTT_IN

VDDQ

ITT

7 ^*1*2

Power Dissipation1

Pd1

560 ^*3

690 ^*4

630 ^*5

1350 ^*6

1750 ^*7

-40～+105

-55～+150

+150

℃

Power Dissipation2

Pd2

Power Dissipation3

Pd3

Operating Temperature Range

Storage Temperature Range

Tstg

-40～+105

-55～+150

+150

Tjmax

℃

Maximum Junction Temperature

℃

*1 Should not exceed Pd.

*2 Instantaneous surge voltage, back electromotive force and voltage under less than 10% duty cycle.

*3 Reduced by 4.48mW for each increase in Ta of 1℃ over 25℃(With no heat sink).

*4 Reduced by 5.52mW for each increase in Ta of 1℃ over 25℃(When mounted on a board 70mm×70mm×1.6mm Glass-epoxyPCB).

*5 Reduced by 5.04mW/℃ for each increase in Ta≧25℃ (when mounted on a 70mm×70mm×1.6mm glass-epoxy board, 1-layer)

On less than 0.2% (percentage occupied by copper foil.

*6 Reduced by 10.8mW/℃ for each increase in Ta≧25℃ (when mounted on a 70mm×70mm×1.6mm glass-epoxy board, 1-layer)

On less than 7.0% (percentage occupied by copper foil.

*7 Reduced by 14.0mW/℃ for each increase in Ta≧25℃ (when mounted on a 70mm×70mm×1.6mm glass-epoxy board, 1-layer)

On less than 65.0% (percentage occupied by copper foil.

www.rohm.com

2010.05 - Rev.A

1/10

12 3 4 5 6 7...11

中文翻译

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与BD3538F_10相关器件

型号	品牌	获取价格	描述	数据表
BD3538F_15	ROHM	获取价格	Termination Regulators for DDR-SDRAMs
BD3538F-E2	ROHM	获取价格	Termination Regulators for DDR-SDRAMs
BD3538F-TR	ROHM	获取价格	Termination Regulators for DDR-SDRAMs
BD3538FVM	ROHM	获取价格	Regulator IC for Memory Termination
BD3538FVM-TR	ROHM	获取价格	Regulator, 1 Output, CMOS, PDSO8,
BD3538HFN	ROHM	获取价格	Silicon Monolithic Integrated Circuit
BD3538HFN-E2	ROHM	获取价格	Termination Regulators for DDR-SDRAMs
BD3538HFN-TL	ROHM	获取价格	Regulator, 1 Output, CMOS, PDFP8,
BD3538HFN-TR	ROHM	获取价格	Termination Regulators for DDR-SDRAMs
BD35390FJ	ROHM	获取价格	Termination Regulator for DDR-SDRAMs

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