MSK5030-3.3B Datasheet, PDF (1/6 Pages) M.S. Kennedy Corporation – HIGH EFFICIENCY, 4 AMP STEP-DOWN SWITCHING REGULATORS

ISO-9001 CERTIFIED BY DSCC
M.S.KENNEDY CORP.
HIGH EFFICIENCY,
4 AMP STEP-DOWN
SWITCHING REGULATORS
5030
SERIES
4707 Dey Road Liverpool, N.Y. 13088
[phone]
FEATURES:
Up To 95% Efficiency For 5V Version
MIL-PRF-38534 QUALIFIED
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:
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.
EQUIVALENT SCHEMATIC
TYPICAL APPLICATIONS
Step-down Switching Regulator
Microprocessor Power Source
High Efficiency Low Voltage
Subsystem Power Supply
PIN-OUT INFORMATION
1 Cton
2 Enable
3 Sense High
4 Sense Low
5 Ground
8 Output
7 Input
6 PGround
1
Rev. E 6/02