MP24971 datasheet(6/14 Pages) MPS

Part #	MP24971

Description	1.5A, 50V, 100kHz, 5V Fixed Output Step- Down Converter with Programmable Current Limit and Output Line-Drop Compensation

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Manufacturer	MPS [Monolithic Power Systems]

Direct Link	http://www.monolithicpower.com

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6 / 14 page

MP24971 –1.5A, 50V, 100kHz, 5V FIXED OUTPUT STEP-DOWN CONVERTER

MP24971 Rev. 1.01

www.MonolithicPower.com

6

1/6/2012

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

TYPICAL PERFORMANCE CHARACTERISTICS

C1=220μF, C2=2.2μF, C8=22μF, C9=100μF, L=33μH, RSENSE=66mΩ, TA=25°C, unless otherwise

noted.

Output Line Drop

Compensation

Connect ISP, ISN to GND

IOUT (A)

Loop Gain with

Phase Margin

0.1

1

10

100

1000

FREQUENCY(kHz)

-200

-160

-120

-80

-40

0

40

80

120

160

200

Efficiency vs.

Output Current

55

60

65

70

75

80

85

90

95

IOUT (A)

Load Regulation

VOUT=5V

4.9

4.91

4.92

4.93

4.94

4.95

4.96

0 0.2 0.4 0.6 0.8

1 1.2 1.4

VIN=12V

VIN=24V

VIN=50V

0.1 0.3 0.5 0.7 0.9 1.1 1.3 1.5

VIN=12V

VIN=24V

VIN=50V

4.93

4.935

4.94

4.945

4.95

4.955

4.96

0 0.2 0.4 0.6 0.8

1 1.2 1.4 1.6

30

100

1000

VIN=12V

VIN=24V

VIN=50V

VIN=12V, VOUT=5V, IOUT=1.5A

FREQUENCY(MHz)

EMI Radiation

-50

-40

-30

-20

-10

0

10

20

30

40

50

-10

0

10

20

30

40

50

60

70

80

90

Resistor Load

EN55022

VIN=12V, VOUT=5V, IOUT=1.5A

Resistor Load

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