Datasheet > MPQ4458

MPQ4458

更新时间： 2024-01-31 05:22:41

品牌	Logo	应用领域
芯源 - MPS		/
页数	文件大小	规格书
16页	362K
描述
Industrial Grade ,1A, 4MHz, 36V Step-Down Converter

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MPQ4458 技术参数

是否Rohs认证：	符合	生命周期：	Active
零件包装代码：	SON	包装说明：	3 X 3 MM, ROHS COMPLIANT, MO-229VEED-5, TQFN-10
针数：	10	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.73	其他特性：	ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8 TO 36 V
模拟集成电路 - 其他类型：	SWITCHING REGULATOR	控制模式：	CURRENT-MODE
最大输入电压：	36 V	最小输入电压：	4.5 V
标称输入电压：	12 V	JESD-30 代码：	S-PDSO-N10
JESD-609代码：	e3	长度：	3 mm
湿度敏感等级：	1	功能数量：	1
端子数量：	10	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	HVSON	封装形状：	SQUARE
封装形式：	SMALL OUTLINE	峰值回流温度（摄氏度）：	260
认证状态：	Not Qualified	座面最大高度：	0.8 mm
表面贴装：	YES	切换器配置：	BUCK
最大切换频率：	4900 kHz	温度等级：	INDUSTRIAL
端子面层：	MATTE TIN	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	40	宽度：	3 mm
Base Number Matches：	1

MPQ4458 数据手册

MPQ4458

Industrial Grade ,1A, 4MHz, 36V

Step-Down Converter

The Future of Analog IC Technology

FEATURES

DESCRIPTION

•

Guaranteed Industrial Temp Range

120μA Quiescent Current

Wide 3.8V to 36V Operating Input Range

300mΩ Internal Power MOSFET

Up to 4MHz Programmable Switching

Frequency

The MPQ4458 is a high frequency step-down

switching regulator with an integrated internal

high-side high voltage power MOSFET. It

provides 1 A output with current mode control

for fast loop response and easy compensation.

The wide 3.8V to 36V input range

•

Ceramic Capacitor Stable

Internal Soft-Start

Precision Current Limit without a Current

Sensing Resistor

accommodates

variety of step-down

applications, including those in automotive

systems. A 120µA operational quiescent current

is suitable for use in battery-powered

applications.

•

Up to 95% Efficiency

Output Adjustable from 0.8V to 30V

Available in 10-Pin 3x3 TQFN Package

The frequency foldback helps prevent inductor

current runaway during startup and thermal

shutdown provides reliable, fault tolerant

operation.

APPLICATIONS

•

High Voltage Power Conversion

Automotive Systems

Industrial Power Systems

Distributed Power Systems

Battery Powered Systems

By switching at 4MHz, the MPQ4458 prevents

EMI (Electromagnetic Interference) noise

problems, such as those found in AM radio and

ADSL applications.

All MPS parts are lead-free and adhere to the RoHS directive. For MPS green

status, please visit MPS website under Quality Assurance. “MPS” and “The

Future of Analog IC Technology” are Registered Trademarks of Monolithic

Power Systems, Inc.

The MPQ4458 is available in thin 10-pin 3mm x 3mm

TQFN package.

TYPICAL APPLICATION

Efficiency vs

Load Current

100

V =5V

150pF

8, 9

COMP

VIN

BST

36V Max

V =24V

V =12V

CONTROL

MPQ4458

FREQ

2.2∝H

100nF

1, 2

OUT

5V @ 1A

10MQ100N

22∝F

GND

V =3.3V

500

1000

LOAD CURRENT (mA)

MPQ4458 Rev. 1.0

12/5/2012

www.MonolithicPower.com

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

12 3 4 5 6 7...16

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与MPQ4458相关器件

型号	品牌	描述	获取价格	数据表
MPQ4458DQT	MPS	Industrial Grade ,1A, 4MHz, 36V Step-Down Converter	获取价格
MPQ4458DQT-Z-LF	MPS	Switching Regulator, Current-mode, 4900kHz Switching Freq-Max, PDSO10, 3 X 3 MM, ROHS COMP	获取价格
MPQ4459	MPS	1.5A, 4MHz, 36V 降压变换器	获取价格
MPQ4459DQT	MPS	Switching Regulator, Current-mode, 4900kHz Switching Freq-Max, PDSO10, 3 X 3 MM, MO-229VEE	获取价格
MPQ4459DQT-LF	MPS	Switching Regulator, Current-mode, 4900kHz Switching Freq-Max, PDSO10, 3 X 3 MM, ROHS COMP	获取价格
MPQ4459DQT-LF-Z	MPS	Switching Regulator, Current-mode, 4000kHz Switching Freq-Max, PDSO10, 3 X 3 MM, ROHS COMP	获取价格

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