Datasheet > BD35281HFN_11

BD35281HFN_11

更新时间： 2024-02-28 18:06:16

品牌	Logo	应用领域
罗姆 - ROHM		电脑 PC
页数	文件大小	规格书
16页	384K
描述
Nch FET Ultra LDO for Desktop PCs

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数据手册

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BD35281HFN_11 数据手册

High Performance Regulators for PCs

Nch FET Ultra LDO

for Desktop PCs

BD35281HFN

No.11030EAT38

●Description

The BD35281HFN ultra low-dropout linear regulator operates from a very low input supply, and offers ideal performance in

low input voltage to low output voltage applications. It incorporates a built-in N-MOSFET power transistor to minimize the

input-to-output voltage differential to the ON resistance (RON max=150mΩ) level. By lowering the dropout voltage in this way,

the regulator realizes high current output (Iomax=1.5A) with reduced conversion loss, and thereby obviates the switching

regulator and its power transistor, choke coil, and rectifier diode. Thus, the BD35281HFN designed to enable significant

package profile downsizing and cost reduction. In BD35281HFN, The NRCS (soft start) function enables a controlled output

voltage ramp-up, which can be programmed to whatever power supply sequence is required.

●Features

1) Internal high-precision reference voltage circuit (0.65V±1%)

2) Internal high-precision output voltage circuit

3) Built-in V_CCundervoltage lockout circuit (V_CC=3.80V)

4) NRCS (soft start) function reduces the magnitude of in-rush current

5) Internal Nch MOSFET driver offers low ON resistance (100mΩ typ)

6) Built-in short circuit protection (SCP)

7) Built-in current limit circuit (1.5A min)

8) Built-in thermal shutdown (TSD) circuit

9) Small package HSON8 : 2.9mm×3.0mm×0.6mm

10) Tracking function

●Applications

Notebook computers, Desktop computers, LCD-TV, DVD, Digital appliances

●Absolute maximum ratings (Ta=25℃)

Parameter

Input Voltage 1

Symbol

Ratings

Unit

V_CC

V_IN

+6.0 *¹

2*¹

Input Voltage 2

Maximum Output Current

Enable Input Voltage

Power Dissipation 1

I_O

V_EN

-0.3～+6.0

0.63 ^*2

Pd1

Pd2

Pd3

Topr

Tstg

Tjmax

℃

Power Dissipation 2

1.35 ^*3

Power Dissipation 3

1.75^*4

Operating Temperature Range

Storage Temperature Range

-10～+100

-55～+125

+150

Maximum Junction Temperature

*1 Should not exceed Pd.

*2 Reduced by 5.04mW/℃ for each increase in Ta≧25℃

(when mounted on a 70mm×70mm×1.6mm glass-epoxy board, 1-layer, copper foil area : less than 0.2%)

*3 Reduced by 10.8mW/℃ for each increase in Ta≧25℃

(when mounted on a 70mm×70mm×1.6mm glass-epoxy board, 1-layer, copper foil area : less than 7.0%)

*4 Reduced by 14.0mW/℃ for each increase in Ta≧25℃

(when mounted on a 70mm×70mm×1.6mm glass-epoxy board, 1-layer, copper foil area : less than 65.0%)

www.rohm.com

2011.01 - Rev.A

1/15

12 3 4 5 6 7...16

中文翻译

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与BD35281HFN_11相关器件

型号	品牌	获取价格	描述	数据表
BD35281HFN-TR	ROHM	获取价格	Nch FET Ultra LDO for Desktop PCs
BD352N	SHUNYE	获取价格	35 AMP BLOCK DIODES
BD352N	THINKISEMI	获取价格	35 Ampere Standard Type Positive Block Rectifier Diodes for Automotive Alternators
BD352P	SHUNYE	获取价格	35 AMP BLOCK DIODES
BD352P	THINKISEMI	获取价格	35 Ampere Standard Type Positive Block Rectifier Diodes for Automotive Alternators
BD3530F	ETC	获取价格	DDR-SDRAM Termination Regulator
BD3530F-E1	ROHM	获取价格	Regulator, 1 Output, CMOS, PDSO8,
BD3530F-E2	ROHM	获取价格	Regulator, 1 Output, CMOS, PDSO8,
BD3531F	ROHM	获取价格	Regulator IC for Memory termination
BD3531F_15	ROHM	获取价格	Termination Regulator for DDR-SDRAMs

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