Datasheet > 电源电路 > 开关式稳压器或控制器> MSK5045-3.3H

MSK5045-3.3H

更新时间： 2024-11-18 10:45:51

品牌	Logo	应用领域
MSK		稳压器开关高压功效
页数	文件大小	规格书
9页	798K
描述
HIGH EFFICIENCY, HIGH VOLTAGE 4 AMP SURFACE MOUNT SWITCHING REGULATORS

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数据手册

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MSK5045-3.3H 数据手册

MIL-PRF-38534 CERTIFIED

^{HIGH EFFICIENCY, HIGH VOLTAGE}5045

4 AMP SURFACE MOUNT

SWITCHING REGULATORS

SERIES

M.S.KENNEDY CORP.

4707 Dey Road Liverpool, N.Y. 13088

(315) 701-6751

FEATURES:

Up To 88% Efficiency For 5V Version

4 Amp Output Current

1.2 x VOUT to 80V Input Range with Separate Bias

12V to 80V Input Range with UVLO (VBias=VIN)

Preset 2.5V, 3.3V or 5.0V Output Versions

300KHz Switching Frequency @ 1 Amp

User Programmable Soft-Start

User Programmable Current Limit

Hermetic Package

-55°C to +125°C Operating Temperature Range

Available with Gull Wing Leads

Contact MSK for MIL-PRF-38534 Qualification Status

DESCRIPTION:

The MSK 5045 series are high efficiency, 4 amp, surface mount switching regulators. The output voltage is config-

ured for 2.5V, 3.3V or 5.0V internally with a tolerance of 1% at 1.5 amps. The operating frequency of the MSK 5045

is 300KHz. An external "soft start" capacitor allows the user to control how quickly the output comes up to regulation

voltage after the application of an input. A low quiescent current and greater than 85% operating efficiency keep the

total internal power dissipation of the MSK 5045 down to an absolute minimum. The input circuitry has been designed

to withstand a very wide range of voltages from less than 12V to as high as 80V. The device is packaged in a hermetic

kovar flatpack for high reliability applications, and is available screened to MIL-PRF-38534 Class H.

EQUIVALENT SCHEMATIC

TYPICAL APPLICATIONS

PIN-OUT INFORMATION

Case

VOUT

Ground

VIN

VBias

Enable

34-44

23-33

12-22

Step-down Switching Regulator

Microprocessor Power Source

High Efficiency Low Voltage

Subsystem Power Supply

Sense High

Sense Low

RFB

PWR SAVE

CTON

Rev. G 2/06

12 3 4 5 6 7...9

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