MP2172C – 2A, SYNCHRONOUS STEP-DOWN SWITCHER

MP2172C Rev.1.0

www.MonolithicPower.com

9

4/22/2019

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TYPICAL PERFORMANCE CHARACTERISTICS

VIN = 5V, VOUT = 1.2V, L = 1µH, COUT = 22µF, TA = +25°C, unless otherwise noted.

Steady State

IOUT = 0A

Steady State

IOUT = 2A

CH1:

VOUT/AC

20mV/div.

CH2: VIN

5V/div.

CH3: VSW

5V/div.

CH4: IL

500mA/div.

CH1:

VOUT/AC

10mV/div.

CH2: VIN

5V/div.

CH3: VSW

5V/div.

CH4: IL

2A/div.

400ns/div.

1µs/div.

VIN Power-Up

IOUT = 0A

VIN Power-Up

IOUT = 2A

CH1: VOUT

1V/div.

CH2: VIN

5V/div.

CH3: VSW

2V/div.

CH4: IL

1A/div.

CH1: VOUT

1V/div.

CH2: VIN

5V/div.

CH3: VSW

2V/div.

CH4: IL

2A/div.

4ms/div.

10ms/div.

VIN Shutdown

IOUT = 0A

VIN Shutdown

IOUT = 2A

CH1: VOUT

1V/div.

CH2: VIN

5V/div.

CH3: VSW

2V/div.

CH4: IL

2A/div.

CH1: VOUT

1V/div.

CH2: VIN

5V/div.

CH3: VSW

2V/div.

CH4: IL

2A/div.

40ms/div.

40ms/div.