MSK MSK5040-5E, MSK5040-5H, MSK5040-3.3H, MSK5040-3.3, MSK5040-1.9 Datasheet

4707 Dey Road Liverpool, N.Y. 13088

M.S.KENNEDY CORP.

[phone]

FEATURES:

5040

SERIES

ISO-9001 CERTIFIED BY DSCC

HIGH EFFICIENCY,

4 AMP 1% ACCURATE

SURFACE MOUNT

SWITCHING REGULATORS

Up To 95% Efficiency For 5V Version

4 Amp Output Current

4.5V to 30V Input Range

Preset 1.9V, 2.5V, 3.3V or 5.0V Output Versions

300KHz Switching Frequency @ 1 Amp

User Programmable Soft-Start

Quiescent Current < 2.5mA

User Programmable Current Limit

DESCRIPTION:

EQUIVALENT SCHEMATIC

The MSK 5040 series are high efficiency, 4 amp, surface mount switching regulators. The output voltage is

configured for 1.9V, 2.5V, 3.3V or 5.0V internally with a tolerance of 1% at 1.5 amps. The operating frequency of

the MSK 5040 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 2.5mA and nearly 95% operating efficiency keep the total internal power dissipation of

the MSK 5040 down to an absolute minimum.

MIL-PRF-38534 QUALIFIED

TYPICAL APPLICATIONS

PIN-OUT INFORMATION

Step-down Switching Regulator

Microprocessor Power Source

High Efficiency Low Voltage

Subsystem Power Supply

Case

Sense High

Sense Low

N/C

RF High

N/C

N/C

1

2

3

4

5

6

7

34-44

23-33

11-22

10

9

8

Vout

Ground

Vin

Enable

N/C

Cton

Rev. C 9/011

Within SOA

0.75A≤IOUT≤2.5A

IOUT=1A 6V≤VIN≤20V

Internal IOUT≥1.5A

High

Low

VEN=VIN

VEN=0V

VEN=0V VIN=30V

Positive

Negative

Source

Fault Sink

VIN=5.0V IOUT=1.5A

VIN=5.0V IOUT=1.5A

VIN=5.0V IOUT=1.5A

VIN=6V IOUT=1A

Enable Input Voltage

Enable Input Current

Current Limit Threshold

Cton Current

Efficiency

8

5040-1.9

5040-2.5

5040-3.3

5040-5.0

V

V

V

V

V

V

V

V

V

A

%

%/V

KHz

V

V

µA

µA

mA

mV

mV

µA

mA

%

%

%

%

TST

TLD

TC

TJ

Storage Temperature Range

Lead Temperature Range

(10 Seconds)

Case Operating Temperature

MSK5040 Series

MSK5040H/E Series

Junction Temperature

ABSOLUTE MAXIMUM RATINGS

○○○○○○○○○○

○○

○○○○○○○○

○○○○○○○

-65°C to +150°C

300°C

-40°C to +85°C

-55°C to +125°C

+150°C

Input Voltage

Enable Voltage

Output Current

Sense Pin Voltage

Thermal Resistance

(Each MOSFET)

-0.3V, +36V

-0.3V, +36V

5.0 Amps

-0.3V, +7V

17°C/W

○○○○○○○○○○

○○○○○○○○○○○○

○○○○○○○○○○○

○○○○○○○○○

○○○○○○○○○○○

1,2,3

1

2,3

1

2,3

1

2,3

1

2,3

1

-

1,2,3

-

1,2,3

1,2,3

1

1

1

1

1

1

1

1

1

1

1

Input Supply Range

Output Current

Load Regulation

Line Regulation

Oscillator Frequency

Disabled Quiescent Current

-

1.9

-

2.5

-

3.3

-

5.0

-

4.5

1.5

0.06

300

-

-

0.5

0.2

2.0

100

-100

4.0

-

70

80

90

95

ELECTRICAL SPECIFICATIONS

4.75

1.88

1.8

2.47

2.38

3.27

3.14

4.95

4.75

4.0

-

-

270

2.0

-

-

-

-

80

-50

2.5

2.0

-

-

-

-

-

1.9

1.9

2.5

2.5

3.3

3.3

5.0

5.0

4.5

1.5

0.06

300

-

-

0.5

0.2

2.0

100

-100

4.0

-

70

80

90

95

30

1.92

2.0

2.53

2.63

3.33

3.47

5.05

5.25

-

-

0.10

330

-

0.5

2.0

2.0

2.5

120

-160

6.5

-

-

-

-

-

4.75

1.86

-

2.45

-

3.23

-

4.9

-

4.0

-

-

270

2.0

-

-

-

-

75

-45

2.5

2.0

-

-

-

-

30

1.94

-

2.55

-

3.37

-

5.1

-

-

-

0.15

330

-

0.5

2.0

2.0

2.5

125

-165

6.5

-

-

-

-

-

Group A

Subgroup

Min. Typ.

Max.

Min.

Typ.

Max.

MSK 5040 SERIES

MSK 5040 H/E SERIES

Units

Test Conditions

Parameter

1

2

2

2

2

2

2

2

7

1

2

3

4

5

6

7

8

VIN=Enable, 5mV≤(sense high-sense low)≤75mV, IL=0A, COUT=6x330µF, CIN=6x220µF, CTON=0.01µF unless otherwise specified.

This parameter is guaranteed by design but need not be tested. Typical parameters are representative of actual device performance but are for reference only.

All output parameters are tested using a low duty cycle pulse to maintain TJ = TC.

Industrial grade and 'E' suffix devices shall be tested to subgroup 1 unless otherwise specified.

Military grade devices ('H' suffix) shall be 100% tested to subgroups 1,2 and 3.

Subgroup 1

Subgroup 2

Subgroup 3

Actual switching frequency can be load dependent if output current is low. Refer to typical performance curves.

Alternate output voltages are available. Please contact the factory.

TA=TC=+25°C

TA=TC=+125°C

TA=TC=-55°C

NOTES:

Rev. C 9/01

2

8

2

○○○○○○○○○○○○○

8

8

Output Voltage 5040-1.9

Output Voltage 5040-2.5

Output Voltage 5040-3.3

Output Voltage 5040-5.0

IOUT=1.5A VIN=5.0V

IOUT=1.5A VIN=5.0V

IOUT=1.5A VIN=5.0V

IOUT=1.5A VIN=6V