Datasheet > MIC24085BYML

MIC24085BYML

更新时间： 2024-11-09 01:15:15

品牌	Logo	应用领域
麦瑞 - MICREL		/
页数	文件大小	规格书
16页	1643K
描述
Integrated FET Buck Regulator

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数据手册

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MIC24085BYML 数据手册

MIC24085

18V, 3A, 1MHz, High-Performance,

Integrated FET Buck Regulator

in Tiny 3mm × 3mm QFN

Features

General Description

• Input voltage range 4.5V to 18V

• 3A output current

• 1MHz switching frequency

• 0.9V reference voltage with ±1.5% accuracy

• Fixed output voltages are available at:

1.5V/1.8V/2.5V/3.3V/5V

Micrel’s MIC24085 is a constant-frequency, current-mode

PWM buck regulator with integrated switchers. The

MIC24085 is targeted for cost-sensitive and high-

performance applications.

The MIC24085 operates over a supply range of 4.5V to

18V at a fixed 1MHz switching frequency and can be used

to provide up to 3A of output current. The output voltage is

adjustable down to 0.9V.

• Peak current-mode PWM with internal compensation

• PFM mode for light load efficiency

• 10µA typical shutdown current

• 4ms internal soft start

• Cycle-by-cycle current limit with frequency foldback

• Output overvoltage protection

The MIC24085 provides the features of low standby

current at 10µA, device enable, input undervoltage lockout,

and output voltage monitoring. The part also provides fault

protections of overcurrent and overtemperature.

The MIC24085 is available in a 16-pin 3mm × 3mm QFN

package with a junction operating range from –40°C to

+125°C.

• Enable input/power-good (PG) output

• Thermal-shutdown protection

• –40°C to +125°C junction temperature range

• Available in 16-pin 3mm × 3mm QFN package

Datasheets and support documentation are available on

Micrel’s web site at: www.micrel.com.

Applications

• Camera, set-top box, gateways, and routers

• Networking/telecom infrastructure

• Printers, scanners, graphic cards, and video cards

Typical Applications

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

Revision 1.1

October 22, 2013

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