SP7662ER-L

更新时间： 2024-02-03 20:06:18

品牌	Logo	应用领域
艾科嘉 - EXAR		稳压器
页数	文件大小	规格书
19页	1795K
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SP7662ER-L 数据手册

SP7662

Powerblox^TM

12A 300KHz Synchronous Step Down Regulator

Rev. 2.1.0

September 2012

GENERAL DESCRIPTION

APPLICATIONS

The SP7662 is a synchronous voltage mode

PWM step down (buck) regulator capable of a

constant output current up to 12 Amps. A wide

5V to 22V single input voltage range allows for

single supply operations from industry

standard 5V, 12V and 18V power rails.

Operations down to 3V are supported with an

additional biasing voltage.

ñ Distributed Power Architectures

ñ Point of Load Converters

ñ Power Supply Modules

ñ FPGAs, DSPs and Processors Supplies

FEATURES

With a 300kHz constant operating frequency

and integrated high and low side switch, the

SP7662 reduces the overall component count

and solution footprint. In addition to a 1%

output setpoint accuracy, this device provides

high efficiency, low ripple and excellent line

and load regulation. An enable function and

soft start feature allow for controlled power up

sequencing implementation.

ñ 12A Continuous Current

ñ 5V-22V Single Input Voltage Rail

- 3V-22V Input Voltage with 5V Bias

ñ PWM Voltage Mode Control

- 300kHz Fixed Synchronous Operations

- Low RDSON Power Switches

- 0.8V Min. Output Voltage – 1% Accuracy

Built-in current limiting, UVLO, output short-

circuit and over temperature protection insure

safe operation under abnormal operating

conditions.

ñ Type II & III Compensations Support

ñ Programmable Soft Start

ñ Over Temperature & Short Circuit

Protection/Auto-Restart

The SP7662 is offered in a RoHS compliant,

lead free 26-pin 7mmx4mm DFN package.

ñ Current Limiting

ñ RoHS Compliant Lead Free 26-Pin DFN

ñ US Patent #6,922,041

TYPICAL APPLICATION DIAGRAM

Fig. 1: SP7662 Application Diagram

Exar Corporation

48720 Kato Road, Fremont CA 94538, USA

www.exar.com

Tel. +1 510 668-7000 – Fax. +1 510 668-7001

12 3 4 5 6 7...19

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