Switching Regulator MSK 5030-2.5 - 6 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

Switching Regulator MSK 5030-2.5
  1. P. 1

  2. P. 2

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  3. P. 3

    APPLICATION NOTESINPUT CAPACITOR SELECTION:CURRENT LIMITING:The MSK 5030 is equipped with a pair of sense pins thatare used to sense the load current using...
  4. P. 4

    APPLICATION NOTES CONT'DMODES OF OPERATION:Under heavy loads, the MSK 5030 operates in full PWM mode. Each pulse from the oscillator sets the internal...
  5. P. 5

    TYPICAL PERFORMANCE CURVESEFFICIENCY vs LOAD CURRENTMSK5030-2.5EFFICIENCY vs LOAD CURRENTMSK5030-3.3EFFICIENCY vs LOAD CURRENTM5L503C-5.090VIN/IN=2500.01...
  6. P. 6

    MECHANICAL SPECIFICATIONS0.375 MAX..00 SQ.0.925 SQREF.0.190 MIN.(8x) 00.0250.1000.1000.200TYP.0.8000.800- -------(5) -j A 8 |O©3 ...
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