Datasheet > MP2349

MP2349

更新时间： 2024-04-09 19:02:12

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描述
带模式选择功能的 24V、6.5A、低静态电流( IQ)、同步降压变换器

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MP2349 数据手册

MP2349

24V, 6.5A, Low-I_Q, Synchronous

Buck Converter with Mode Selection

DESCRIPTION

FEATURES

The MP2349 is a fully integrated, high-

frequency, synchronous, rectified, step-down

switch-mode converter. It offers a very compact

solution to achieve up to 6.5A of continuous

output current (I_OUT) and 7.5A of peak output

current (I_{OUT_MAX}) across a wide input voltage

(V_IN) range.

•

Wide 4.5V to 24V Operating Input Voltage

(V_IN) Range

105μA Low Quiescent Current (I_Q)

•

6.5A Continuous Output Current (I_OUT

7.5A Peak Output Current (I_{OUT_MAX}

)

Adaptive Constant-On-Time (COT) for Fast

Transient Response

•

DC Auto-Tune Loop

Low On Resistance (R_DS(ON)) Internal Power

MOSFETs

Proprietary Switching Loss Reduction

Technology

Selectable Forced Continuous Conduction

Mode (FCCM), Automatic Pulse-Frequency

Modulation (PFM)/Pulse-Width Modulation

(PWM) Mode, and Ultrasonic Mode (USM)

Fixed 700kHz Switching Frequency (f_SW)

Stable with POSCAP and Ceramic

Capacitors

Internal Soft Start (SS)

Output Discharge

Over-Current Protection (OCP), Over-

Voltage Protection (OVP), Under-Voltage

Protection (UVP), and Thermal Shutdown

with Automatic Retry

The MP2349 operates at high efficiency across

a wide I_OUTload range based on MPS’s

proprietary switching loss reduction technology

and internal, low on resistance (R_DS(ON)) power

MOSFETs.

•

Adaptive constant-on-time (COT) control

provides fast transient response and eases loop

stabilization. The DC auto-tune loop combined

with the remote differential sense provides good

load and line regulation.

•

Full protection features include over-current

protection (OCP), over-voltage protection

(OVP), under-voltage protection (UVP), and

thermal shutdown.

•

The MP2349 requires a minimal number of

external components, and is available in a

QFN-11 (2mmx2mm) package.

•

Available in a QFN-11 (2mmx2mm)

Package

Optimized Performance with

MPS Inductor MPL-AL6050

and MPL-AL4020 Series

APPLICATIONS

•

Security Cameras

Portable Devices and xDSL Devices

Digital Set-Top Boxes

Flat-Panel Televisions and Monitors

General-Purpose 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”, the MPS logo, and “Simple, Easy Solutions” are

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

MP2349 Rev. 1.0

5/22/2023

MonolithicPower.com

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

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