Datasheet > MP2151

MP2151

更新时间： 2024-11-15 17:01:15

品牌	Logo	应用领域
芯源 - MPS		转换器
页数	文件大小	规格书
21页	1347K
描述
5.5V、1A同步降压转换器，具有 25μA IQ 和输出放电功能，采用超小尺寸封装

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中文翻译

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MP2151 数据手册

MP2151

5.5V, 1A, Synchronous Step-Down Converter

with 25μA I_Qand Output Discharge

in an Ultra-Small Package

DESCRIPTION

FEATURES

The MP2151 is a monolithic, step-down, switch-

mode converter with built-in, internal power

MOSFETs. The MP2151 achieves 1A of

continuous output current from a 2.5V to 5.5V

input voltage with excellent load and line

regulation. The output voltage can be regulated

as low as 0.6V.



Low I_Q: 25μA

1.1MHz Switching Frequency

EN for Power Sequencing

1% FB Accuracy

Wide 2.5V to 5.5V Operating Input Range

Output Adjustable from 0.6V

Up to 1A Output Current

80mΩ and 50mΩ Internal Power MOSFET

Switches

The constant-on-time (COT) control scheme

provides fast transient response and eases loop

stabilization. Full protection features include

cycle-by-cycle current limiting and thermal

shutdown.



100% Duty On

Output Discharge

Output Over-Voltage Protection (OVP)

Short-Circuit Protection (SCP) with Hiccup

Mode

Power Good (PG) only for Fixed Output

Version

The MP2151 is ideal for a wide range of

applications including high-performance DSPs,

wireless power, portable and mobile devices,

and other low-power systems.



Available in a SOT563 or UTQFN

(1.2mmx1.6mm) Package

The MP2151 requires a minimal number of

readily

available,

standard,

external

components and is available in ultra-small

SOT563 or UTQFN (1.2mmx1.6mm) packages.

APPLICATIONS



Wireless/Networking Cards

Portable Instruments

Battery-Powered Devices

Low-Voltage I/O System Power

Multi-Function Printers

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”, the MPS logo, and “Simple, Easy Solutions” are

trademarks of Monolithic Power Systems, Inc. or its subsidiaries.

TYPICAL APPLICATION

1μH

VIN

VOUT

1.2V/1A

Efficiency vs. Output Current

V_IN= 5V, L1 = 1µH (DCR = 27mΩ)

VIN

100

OUT

10μF

200kΩ

MP2151

Vo=3.3V

200kΩ

Vo=1.2V

GND

Vo=1.8V

Vo=2.5V

Adjustable Output Reversion

0.001

0.010

0.100 1.000

I_O(A)

MP2151 Rev. 1.0

1/7/2019

www.MonolithicPower.com

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

12 3 4 5 6 7...21

中文翻译

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与MP2151相关器件

型号	品牌	获取价格	描述	数据表
MP2152	MPS	获取价格	5.5V、2A同步降压转换器，具有 25μA IQ 和输出放电功能，采用 QFN 和 SO
MP2152D	MPS	获取价格	带快速输出放电功能的 2.5V 至 5.5V、2A、同步降压变换器
MP2153	MPS	获取价格	5.5V、3A 同步降压变换器，具有 25μA IQ和输出放电功能，采用超小尺寸封装
MP2153D	MPS	获取价格	具有快速输出放电功能的 2.5V 至 5.5V、3A、同步降压变换器
MP2155	MPS	获取价格	High Efficiency Single Inductor Buck-Boost Converter with 2.2A Switches
MP2155GQ	MPS	获取价格	High Efficiency Single Inductor Buck-Boost Converter with 2.2A Switches
MP2155GQ-Z	MPS	获取价格	Switching Regulator, Current-mode, 1000kHz Switching Freq-Max, QFN-10
MP2158	MPS	获取价格	1A, 6V, 1.5MHz, 17A IQ, COT Synchronous Step Down Switcher In Ultra-small 2x1.5mm QFN
MP2158A	MPS	获取价格	1A, 6V, 1.5MHz, 17uA IQ, COT Synchronous Step-Down Converter in Ultra-Small 2x1.5mm QFN-8
MP2158AGQH	MPS	获取价格	1A, 6V, 1.5MHz, 17uA IQ, COT Synchronous Step-Down Converter in Ultra-Small 2x1.5mm QFN-8

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