MSK5040-5E データシートの表示（PDF） - M.S. Kennedy

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MSK5040-5E

HIGH EFFICIENCY, 4 AMP 1% ACCURATE SURFACE MOUNT SWITCHING REGULATORS

M.S. Kennedy 

ISO-9001 CERTIFIED BY DSCC

M.S.KENNEDY CORP.

HIGH EFFICIENCY,

4 AMP 1% ACCURATE

SURFACE MOUNT

SWITCHING REGULATORS

5040

SERIES

4707 Dey Road Liverpool, N.Y. 13088

(315) 701-6751

FEATURES:

Up To 95% Efficiency For 5V Version

MIL-PRF-38534 QUALIFIED

4 Amp Output Current

4.5V to 30V Input Range

Preset 1.9V, 2.5V, 3.3V or 5.0V Output Versions

300KHz Switching Frequency @ 1 Amp

User Programmable Soft-Start

Quiescent Current < 2.5mA

User Programmable Current Limit

DESCRIPTION:

The MSK 5040 series are high efficiency, 4 amp, surface mount switching regulators. The output voltage is

configured for 1.9V, 2.5V, 3.3V or 5.0V internally with a tolerance of 1% at 1.5 amps. The operating frequency of

the MSK 5040 is 300KHz and is internally set. 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. An extremely low quiescent

current of typically less than 2.5mA and nearly 95% operating efficiency keep the total internal power dissipation of

the MSK 5040 down to an absolute minimum.

EQUIVALENT SCHEMATIC

TYPICAL APPLICATIONS

Step-down Switching Regulator

Microprocessor Power Source

High Efficiency Low Voltage

Subsystem Power Supply

PIN-OUT INFORMATION

1 Case

2 Sense High

3 Sense Low

4 N/C

5 RF High

6 N/C

7 N/C

34-44

23-33

11-22

10

9

8

Vout

Ground

Vin

Enable

N/C

Cton

1

Rev. C 9/01

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