Datasheet > NB671L

NB671L

更新时间： 2024-04-09 18:59:56

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描述
5.5V-24V宽输入电压范围，6A，恒定导通时间（COT）控制模式同步降压变换器，具有低静态电流

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NB671L 数据手册

NB671L

24V, High Current

Synchronous Step-down Converter

NOT RECOMMENDED FOR NEW DESIGNS, REFER TO NB671LC OR NB691A

DESCRIPTION

FEATURES

The NB671L is the low quiescent current

version of NB671. It is a fully integrated high

frequency synchronous rectified step-down

switch mode converter, which offers very

compact solutions to achieve 6A continuous

output current and 9A peak current over a wide

input supply range with excellent load and line

regulation. The NB671L operates at high

efficiency over a wide output current load

range.

•

Wide 5.5V to 24V Operating Input Range

6A Continuous Output Current

9A Peak Output Current

120μA Quiescent Current

Low R_DS(ON) Internal Power MOSFETs

Proprietary Switching Loss Reduction

Technique

1% Reference Voltage

Internal Soft Start

•

Output Discharge

Constant-On-Time

(COT)

control

mode

500kHZ Switching Frequency

OCP, OVP, UVP Protection and Thermal

Shutdown

provides fast transient response and eases loop

stabilization.

•

Latch off Reset via EN or Power Cycle.

Output Adjustable from 0.604V to 5.5V

Support 5V Output from 5.5V Input

Under voltage lockout is internally set as 4.5 V,

An open drain power good signal indicates the

output is within its nominal voltage range.

Full protection features include OCP, OVP, and

thermal shut down.

APPLICATIONS

•

Laptop Computer

Tablet PC

Networking Systems

Personal Video Recorders

Flat Panel Television and Monitors

Distributed Power Systems

The converter requires minimum number of

external components and is available in QFN16

(3mmx3mm) package.

The NB671L is pin-to-pin compatible with

NB671 with a NC pin changed to LP#, which is

used to receive the power state command from

the system.

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

status, please visit MPS website under Products, Quality Assurance page.

“MPS” and “The Future of Analog IC Technology” are registered trademarks of

Monolithic Power Systems, Inc.

TYPICAL APPLICATION

NB671L Rev. 1.02

1/5/2018

www.MonolithicPower.com

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

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