MPQ4480 – 36V, 6A, SYNC STEP-DOWN CONVERTER FOR AEC1-Q100 QUALIFIED

MPQ4480 Rev. 1.0

www.MonolithicPower.com

9

7/2/2019

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TYPICAL PERFORMANCE CHARACTERISTICS (continued)

VIN = 12V, VOUT = 5V, L = 4.7µH, fSW = 440kHz, TA = 25°C, unless otherwise noted. All waveforms

are tested based on bypassing the external MOSFET except Short Battery to Ground.

Output Ripple

fSW = 440kHz, L = 4.7µH, IOUT = 0A

Output Ripple

fSW = 440kHz, L = 4.7µH, IOUT = 6A

CH1:

VOUT/AC

50mV/div.

CH2: VIN

10V/div.

CH3: VSW

10V/div.

CH4: IL

5A/div.

CH1:

VOUT/AC

50mV/div.

CH2: VIN

10V/div.

CH3: VSW

10V/div.

CH4: IL

5A/div.

2µs/div.

2µs/div.

Output Ripple

fSW = 2.2MHz, L = 2.2µH, IOUT = 0A

Output Ripple

fSW = 2.2MHz, L = 2.2µH, IOUT = 6A

CH1:

VOUT/AC

50mV/div.

CH2: VIN

10V/div.

CH3: VSW

10V/div.

CH4: IL

5A/div.

CH1:

VOUT/AC

50mV/div.

CH2: VIN

10V/div.

CH3: VSW

10V/div.

CH4: IL

5A/div.

1µs/div.

1µs/div.

Power Start-Up

IOUT = 0A

Power Start-Up

IOUT = 6A

CH1: VOUT

5V/div.

CH2: VIN

5V/div.

CH3: VSW

10V/div.

CH4: IL

2A/div.

CH1: VOUT

5V/div.

CH2: VIN

5V/div.

CH3: VSW

10V/div.

CH4: IL

5A/div.

5ms/div.

5ms/div.