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

MPQ4480 Rev. 1.0

www.MonolithicPower.com

12

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.

CC Mode Over-Current Protection

Steady State

Low Dropout Mode

VIN = 5V, VOUT = 4.93V, IOUT = 0A

CH1: VOUT

2V/div.

CH2: VIN

10V/div.

CH3: VSW

10V/div.

CH4: IL

5A/div.

CH1: VOUT

2V/div.

CH2: VIN

2V/div.

CH3: VSW

2V/div.

CH4: IL

200mA/div.

5μs/div.

20μs/div.

Load Transient

IOUT = 0 to 3A, 2.5A/µs, VDROP = GND,

line drop compensation = 73mV @ 3A

CH1:

VOUT/AC

200mV/div.

CH3: VSW

10V/div.

CH4: IOUT

2A/div.

200μs/div.