4707 Dey Road Liverpool, N.Y. 13088

M.S.KENNEDY CORP.

(315) 701-6751

FEATURES:

5030

SERIES

ISO-9001 CERTIFIED BY DSCC

HIGH EFFICIENCY,

4 AMP STEP-DOWN

SWITCHING REGULATORS

Up To 95% Efficiency For 5V Version

4 Amp Output Current

4.5V to 30V Input Range

Preset 2.5V, 3.3V or 5.0V Output Versions

300KHz Switching Frequency @ 1 Amp

User Programmable Soft-Start

Quiescent Current < 0.5mA

User Programmable Current Limit

DESCRIPTION:

EQUIVALENT SCHEMATIC

The MSK 5030 series are high efficiency, 4 amp, step-down switching regulators. The output voltage is configured

for 2.5V, 3.3V or 5.0V internally and the input range is 4.5V to 30V. The operating frequency of the MSK 5030 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 0.5mA and 95% operating efficiency keeps the total internal power dissipation of the MSK 5030 down to an

absolute minimum. A surface mount version, MSK 5040, is also available if desired.

MIL-PRF-38534 QUALIFIED

TYPICAL APPLICATIONS

PIN-OUT INFORMATION

Step-down Switching Regulator

Microprocessor Power Source

High Efficiency Low Voltage

Subsystem Power Supply

Cton

Enable

Sense High

Sense Low

Ground

1

2

3

4

5

8

7

6

Output

Input

PGround

Rev. E 6/02

1