4707 Dey Road Liverpool, N.Y. 13088

M.S.KENNEDY CORP.

(315) 701-6751

FEATURES:

ISO-9001 CERTIFIED BY DSCC

Extremely Low Dropout Voltage: 0.50V @ 20 Amps

Output Voltage Adjustable from 1.3V to 36V with Two External Resistors

TTL Level Enable Pin

Externally Programmable Current Limit

Low Quiescent Current

Available Fully Qualified to Mil-PRF-38534

Output Current to 20 Amps

Regulation Dropout Fault Pin

EQUIVALENT SCHEMATIC

MIL-PRF-38534 CERTIFIED

TYPICAL APPLICATIONS

PIN-OUT INFORMATION

High Efficiency, High Current Linear Regulators

Adjustable Voltage/Current Regulators

System Power Supplies

Switching Power Supply Post Regulators

HIGH CURRENT,

SUPER LOW DROPOUT

DESCRIPTION:

The MSK 5021 is a user adjustable voltage regulator capable of delivering 20 amps to a load with only a 0.5 volt

dropout voltage rating. The output voltage is adjustable from 1.3 volts to 36 volts through the selection of two

external resistors. Low dropout voltage ratings are achieved by employing a unique parallel MOSFET output pass

transistor configuration which drives power dissipation down and efficiency up. Accuracy is guaranteed with a ±1%

voltage tolerance at room temperature that only varies ±2% over temperature. A TTL level input can be used to

enable/disable the device and a regulation dropout Fault pin provides a means of monitoring the output level. The

MSK 5021 is packaged in a thermally efficient 12 pin power dip that can be bolted directly to a heat sink.

Rev. F

1/05

1

Enable

VAdjust

Ground

CPump

Input

Fault

1

2

3

4

5

6

Output

Output

Sense

VSC

VSC

Case Connection

12

11

10

9

8

7