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

MPQ4480 Rev. 1.0

www.MonolithicPower.com

7

7/2/2019

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ELECTRICAL CHARACTERISTICS (continued)

VIN = 12V, VEN = 5V, TJ = -40°C to +125°C, typical value is tested at TJ = 25°C, unless otherwise

noted.

Soft-start time

tSS

10% to 90% VOUT

0.4

1.1

1.8

ms

Line drop compensation

gain (from IRTN to IFB)

Gain1

VDROP pin = GND, TJ = 25°C

0.1

0.6

1.1

μA/A

Gain2

VDROP pin = float, TJ = 25°C

1.5

3.25

5

μA/A

Gain3

VDROP pin = VCC, TJ = 25°C

4

6.75

9.5

μA/A

OVP

OVP rising threshold

VOVP1_RISE

110% 115% 120% VREF

OVP falling threshold

VOVP_FALL

105%

VREF

OVP delay (7)

tOVPDEL

2

μs

RGND Current Limit

RGND to PGND resistor

RSENSE

4

12

mΩ

Second current limit

threshold

VSENSE_TH

12

A

GATE pull-low resistance

RGATE_L

85

180

Ω

Second current limit off time

tEXT_CUR_RES

1

2

3

s

Note:

7) Guaranteed by engineering sample characterization.