Datasheet > BD8313HFN_11

BD8313HFN_11

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
18页	544K
描述
Output 1.5A or Less High-efficiency Step-down Switching Regulator with Built-in Power MOSFET

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BD8313HFN_11 数据手册

Single-chip Type with Built-in FET Switching Regulators

Output 1.5A or Less

High-efficiency Step-down Switching Regulator

with Built-in Power MOSFET

No.11027EDT05

BD8313HFN

●Description

BD8313HFN produces step-down output including 1.2, 1.8, 3.3, or 5 V from 4 batteries, batteries such as Li2cell or Li3cell,

etc. or a 5V/12V fixed power supply line.

BD8313HFN allows easy production of small power supply by a wide range of external constants, and is equipped with an

external coil/capacitor downsized by high frequency operation of 1.0 MHz, built-in synchronous rectification SW capable of

withstanding 15 V, and flexible phase compensation system on board.

●Features

1) Incorporates Pch/Nch synchronous rectification SW capable of withstanding 1.2 A/15V.

2) Incorporates phase compensation device between input and output of Error AMP.

3) Small coils and capacitors to be used by high frequency operation of 1.0MHz

4) Input voltage 3.5 V – 14 V

Output current 1.2A(7.4V input, 3.3V output)

0.8A(4.5V input, 3.3V output)

5) Incorporates soft-start function.

6) Incorporates timer latch system short protecting function.

7) As small as 2.9mm×3 mm, SON 8-pin package

HSON8

●Application

For portable equipment like DSC/DVC powered by 4 dry batteries or Li2cell and Li3cell, or general consumer-equipment

with 5 V/12 V lines

●Operating Conditions (Ta = 25°C)

Parameter

Power supply voltage

Symbol

VCC

Voltage circuit

3.5 - 14

Unit

Output voltage

VOUT

1.2 - 12

●Absolute Maximum Ratings

Parameter

Symbol

VCC, PVCC

Iinmax

Rating

Unit

Maximum applied power voltage

Maximum input current

Power dissipation

1.2

630

°C

Operating temperature range

Storage temperature range

Junction temperature

Topr

-25～+85

-55～+150

+150

Tstg

Tjmax

*1 When used at Ta = 25℃ or more installed on a 70×70×1.6^tmm board, the rating is reduced by 5.04mW/℃.

* These specifications are subject to change without advance notice for modifications and other reasons.

www.rohm.com

2011.04 - Rev.D

1/17

12 3 4 5 6 7...18

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