MP4572

– 60V, 2A, SYNCHRONOUS STEP-DOWN CONVERTER

MP4572 Rev. 1.0

www.MonolithicPower.com

19

3/9/2020

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TYPICAL PERFORMANCE CHARACTERISTICS (continued)

VIN = 24V, VOUT = 5V, L = 15µH, fSW = 400kHz, TA = 25°C, unless otherwise noted.

Cold Crank

VIN = 24V to 4V to 5V, IOUT = 0A

Cold Crank

VIN = 24V to 4V to 5V, IOUT = 2A

CH3: VIN

10V/div.

CH1: VSW

10V/div.

CH2: VOUT

5V/div.

CH4: IL

500mA/div.

CH3: VIN

10V/div.

CH1: VSW

10V/div.

CH2: VOUT

5V/div.

CH4: IL

2A/div.

40ms/div.

40ms/div.

VIN Ramp Down and Up

VIN = 18V to 4.5V to 0V to 4.5V to 18V,

IOUT = 0A

VIN Ramp Down and Up

VIN = 18V to 4.5V to 0V to 4.5V to 18V,

IOUT = 2A

CH3: VIN

5V/div.

CH1: VSW

5V/div.

CH2: VOUT

5V/div.

CH4: IL

2A/div.

CH3: VIN

5V/div.

CH1: VSW

5V/div.

CH2: VOUT

5V/div.

CH4: IL

2A/div.

10s/div.

10s/div.

Load Dump

VIN = 24V to 48V to 24V, IOUT = 2A

CH3: VIN

20V/div.

CH1: VSW

20V/div.

CH2: VOUT

5V/div.

CH4: IL

2A/div.

100ms/div.