Datasheet > MPM3840

MPM3840

更新时间： 2022-02-26 13:07:35

品牌	Logo	应用领域
芯源 - MPS		/
页数	文件大小	规格书
18页	908K
描述
2.8V-5.5V, 4A, Power Module, Synchronous Step-Down Converter with Integrated Inductor

阅读下载

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

MPM3840 数据手册

MPM3840

2.8V-5.5V, 4A, Power Module, Synchronous

Step-Down Converter with Integrated Inductor

The Future of Analog IC Technology

DESCRIPTION

FEATURES

The MPM3840 is a DC/DC module that

includes a monolithic, step-down, switch-mode

converter with built-in, internal power MOSFETs

and an inductor. The MPM3840 can provide 4A

of continuous output current from a 2.8V to

5.5V input voltage with excellent load and line

regulation. The MPM3840 is ideal for powering

portable equipment that run on a single-cell

Lithium-ion (Li+) battery. The output voltage can

be regulated as low as 0.6V. Only input

capacitors, output capacitors, and feedback (FB)

resistors are required to complete the design.



>80% Light-Load Efficiency

Low I_Q: 40μA

Wide 2.8V to 5.5V Operating Input Range

Output Voltage as Low as 0.6V

100% Duty Cycle in Dropout

4A Output Current

25mΩ and 12mΩ Internal Power MOSFETs

1.2MHz Frequency

External Mode Control

External Mode Control (PWM.PFM) and

Dynamic Analog Voltage

EN and Power Good for Power Sequencing

Cycle-by-Cycle Over-Current Protection

(OCP)

1.5ms Internal Soft-Start Time with Pre-

Biased Start-Up

Short-Circuit Protection (SCP) with Hiccup

Mode



The constant-on-time (COT) control scheme

provides a fast transient response, high

light-load efficiency, and easy loop stabilization.



Full protection features include cycle-by-cycle

current limiting and thermal shutdown.

The MPM3840 requires a minimal number of



Thermal Shutdown

Stable with Low ESR Output Ceramic

Capacitors

Available in a QFN-20 (3mmx5mmx1.6mm)

Package

readily

available,

standard,

external

components and is available in an ultra-small

QFN-20 (3mmx5mmx1.6mm) package.



APPLICATIONS



Networking/Servers

Space-Constraint Applications

Industrial Products

Low-Voltage I/O System Power

All MPS parts are lead-free, halogen-free, and adhere to the RoHS

directive. For MPS green status, please visit the MPS website under

Quality Assurance. “MPS” and “The Future of Analog IC Technology” are

registered trademarks of Monolithic Power Systems, Inc.

TYPICAL APPLICATION

Efficiency

=5V

100

Vo=1V@PWM

Vo=1.2V@PWM

Vo=1.5V@PWM

Vo=1.8V@PWM

Vo=1V@PFM

Vo=1.2V@PFM

Vo=1.5V@PFM

Vo=1.8V@PFM

Vo=2.5V@PWM

Vo=3.3V@PWM

Vo=2.5V@PFM

Vo=3.3V@PFM

0.001

0.01

0.1

I_OUT(A)

MPM3840 Rev. 1.1

3/10/2017

www.MonolithicPower.com

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

12 3 4 5 6 7...18

下载PDF

与MPM3840相关器件

型号	品牌	描述	获取价格	数据表
MPM3840GQV	MPS	2.8V-5.5V, 4A, Power Module, Synchronous Step-Down Converter with Integrated Inductor	获取价格
MPM3860	MPS	7V 6A 降压电源模块	获取价格
MPM3864	MPS	2.75V 至 7V、6A、1.2MHz、同步电源模块	获取价格
MPM-40	MPD	Board Mount, 40W Single, Dual & Triple Out AC/DC Power Supplies	获取价格
MPM4001AT1	VISHAY	RES NETWORK 2 RES 2K OHM TO236-3	获取价格
MPM4002AT1	VISHAY	RES NTWRK 2 RES 20K OHM TO236-3	获取价格