Datasheet > BD9D323QWZ

BD9D323QWZ

更新时间： 2023-09-03 20:40:29

品牌	Logo	应用领域
罗姆 - ROHM		开关转换器稳压器
页数	文件大小	规格书
39页	2199K
描述
BD9D323QWZ是内置低导通电阻的功率MOSFET的同步整流降压型开关稳压器。最大可输出3A的电流。是恒定时间控制DC/DC转换器，具有高速负载响应性能，无需外接的相位补偿电路。

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BD9D323QWZ 数据手册

Datasheet

4.5V to 18V Input, 3.0A Integrated MOSFET

1ch Synchronous Buck DC/DC Converter

BD9D323QWZ

General Description

Key Specifications

BD9D323QWZ is a synchronous buck switching regulator

with built-in low on-resistance power MOSFETs. It is

capable of providing current of up to 3 A. External phase

compensation circuit is not necessary for it is a constant

on-time control DC/DC converter with fast transient

response.



Input Voltage Range:

Output Voltage Setting Range:

4.5V to 18.0 V

0.765V to 7V

(V_IN×0.07)V to (V_IN×0.65)V

3A (Max)



Output Current:

Switching Frequency:

High Side MOSFET On-Resistance: 80mΩ (Typ)

Low Side MOSFET On-Resistance: 50mΩ (Typ)

Standby Current:

700kHz (Typ)

Features

2μA (Typ)



Synchronous Single DC/DC Converter

Constant On-time Control

Over Current Protection

Thermal Shutdown Protection

Under Voltage Lockout Protection

Adjustable Soft Start

UMMP008Z2020 Package (Backside Heat

Dissipation)

Package

W(Typ) x D(Typ) x H(Max)

2.00mm x 2.00mm x 0.40mm

UMMP008Z2020

Applications



Step-down Power Supply for DSPs, FPGAs,

Microprocessors, etc.

Set-top Box

LCD TVs

DVD / Blu-ray Player / Recorder

POL Power Supply, etc.



UMMP008Z2020

Typical Application Circuit

Figure 1. Typical Application Circuit

○Product structure: Silicon monolithic integrated circuit ○This product has no designed protection against radioactive rays.

www.rohm.com

TSZ02201-0F3F0AC00070-1-2

06.Feb.2017 Rev.003

1/36

TSZ22111・14・001

12 3 4 5 6 7...39

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