BD8646FV-E2

更新时间： 2024-11-04 08:51:47

品牌	Logo	应用领域
罗姆 - ROHM		稳压器开关
页数	文件大小	规格书
14页	359K
描述
Flexible Step-down Switching Regulator with Built-in Power MOSFET

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数据手册

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BD8646FV-E2 数据手册

Single-chip Type with Built-in FET type Switching Regulators

Flexible Step-down

Switching Regulator

with Built-in Power MOSFET

No.10027EAT44

BD8646FV

●Description

The BD8646FV is a synchronous step-down switching regulator that integrates 2 low resistances N-channel MOSFETs.

It achieves 2A continuous output current over a wide input supply range.

Current mode operation provides fast transient response and easy phase compensation.

●Feature

1) Synchronous rectification with built-in FET type DC/DC converter

2) 2.0A output current

3) Range of operation power-supply voltage 4.5V～18V

4) Reference voltage FB 0.8V±1%

5) Programmable frequency 100kHz～600kHz

6) Over current protection function

7) Thermal shutdown function

8) Under voltage protection

9) Soft start time out function / Soft start delay circuit

10) Programmable OFFLATCH time

●Applications

FPD,DVD,HDD Recorder,STB,Amusement,Other

●Absolute maximum rating (Ta=25℃)

Parameter

Input supply voltage

Symbol

Ratings

Unit

V_IN

V_BOOT

V_EN

BOOT terminal voltage

EN terminal voltage

Input terminal voltage

SW terminal voltage

Output current

GND-0.3 ～ V_IN+0.3

GND-0.3 ～ 7

GND-0.3 ～ V_IN+0.3

2.5

V_INP

V_SW

I_OUT

Power dissipation

1.19^*2

℃

Operating temperature

Storage temperature

Topr

Tstg

-20 ～ 85

-55 ～ 150

*1 V_INPApplication terminal: SS/DELAY, FB, FC, RT, PSET

*2 (70mm×70mm, thickness 1.6mm, and four layer glass epoxy substrates)When mounting substrate and the package

back exposure part are connected with solder

Operating at higher than Ta=25℃, 9.5mW shall be reduced per 1

●Operating conditions

Ratings

Parameter

Symbol

Unit

Min.

4.5

Typ.

Max.

18.0

2.0

Input supply voltage

Output current

V_IN

I_OUT

This product is not designed for protection against radioactive rays.

www.rohm.com

2010.09 - Rev.A

1/13

12 3 4 5 6 7...14

中文翻译

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