Switching Regulator MSK 5030-2.50 pages
MIL-PRF-38534AND 38535 CERTIFIED FACILITY
HIGH EFFICIENCY,
4 AMP STEP-DOWN
WITCHING REGULATORS
M.S.KENNEDY CORP.
5030
SERIES
(315) 701-6751
4707 Dey Road Liverpool, N.Y. 13088
FEATURES:
• 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
• Contact MSK for MIL-PRF-38534 Qualification Status
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
©
©
0.1 uF
4—j^QI
Q2
4.7uH
JTTTL
SOFT START
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
8548-93 Rev. G 2/13
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