Datasheet > MP2269GD

MP2269GD

更新时间： 2024-11-04 01:18:59

品牌	Logo	应用领域
芯源 - MPS		/
页数	文件大小	规格书
19页	1158K
描述
3.3V - 30V, 1A, 12uA IQ, Synchronous, Step-Down Converter with External Soft Start and Power Good in 2x3mm QFN Package

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MP2269GD 数据手册

MP2269

3.3V - 30V, 1A, 12µA I_Q,

Synchronous, Step-Down Converter

with External Soft Start and Power Good

in 2x3mm QFN Package

DESCRIPTION

FEATURES

The MP2269 is a frequency-programmable

(350kHz to 2.5MHz), synchronous, step-down,

switching regulator with integrated, internal,

high-side and low-side power MOSFETs. The

MP2269 provides 1A of highly efficient output

current with current-mode control for fast loop

response.



Wide 3.3V to 30V Operating Voltage Range

1A Continuous Output Current

1μA Low Shutdown Supply Current

12μA Sleep Mode Quiescent Current

180mΩ/80mΩ High-Side/Low-Side R_DS(ON)

for Internal Power MOSFETs

350kHz to 2.5MHz Programmable Switching

Frequency



The wide 3.3V to 30V input range



Power Good Output

External Soft Start

80ns Minimum On Time

Selectable Forced PWM Mode and Auto

PFM/PWM Mode

accommodates

variety of step-down

applications. A 1μA shutdown mode quiescent

current allows the MP2269 to be used in

battery-powered applications.

High power conversion efficiency over a wide

load range is achieved by scaling down the

switching frequency at light-load condition to

reduce switching and gate driving losses.



Low Dropout Mode

Hiccup Over-Current Protection (OCP)

Available in a QFN-15 (2mmx3mm)

Package

An open-drain power good signal indicates the

output signal. Frequency foldback helps prevent

inductor current runaway during start-up.

Thermal shutdown provides reliable and fault-

tolerant operation. High duty cycle and low

drop-out mode are provided for battery-

powered systems.

APPLICATIONS



Battery-Powered Systems

Smart Homes

Wide Input Range Power Supplies

Standby Power Supplies

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.

The MP2269 is available in a QFN-15

(2mmx3mm) package.

TYPICAL APPLICATION

1μF

12V

VIN

6.5μH

3.3V/1A

VOUT

BST

VIN

22μF×2

10μF

1MΩ

MP2269

324kΩ

MODE

BIAS

MODE

BIAS

VCC

FREQ

1μF

165kΩ

12nF

MP2269 Rev. 1.0

10/11/2016

www.MonolithicPower.com

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

12 3 4 5 6 7...19

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