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

MPQ4480 Rev. 1.0

www.MonolithicPower.com

5

7/2/2019

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

© 2019 MPS. All Rights Reserved.

ABSOLUTE MAXIMUM RATINGS (1)

Supply voltage (VIN) ...................................... 40V

VSW .......................................................................

-0.3V (-5V for <10ns) to VIN + 0.3V (43V for

<10ns)

VBST.....................................................VSW + 5.5V

VEN............................................. -0.3V to +10V (2)

All other pins ................................ -0.3V to +5.5V

Continuous power dissipation (TA = 25°C) (3) (5)

QFN-25 (4mmx5mm).................................. 5.4W

Junction temperature ................................ 150

C

Lead temperature...................................... 260

C

Storage temperature.................-65

C to +150C

Recommended Operating Conditions (4)

Operation input voltage range ......... 4.2V to 36V

Output current ................................................. 6A

Output voltage range ................. 1V to VIN * DMAX

Operating junction temp…….. ..-40°C to +125°C

Thermal Resistance

θJA

θJC

QFN-25 (4mmx5mm)

EVQ4480-V-00A (5) ................. 23........4 ....

C/W

JESD51-7 (6) ............................ 44........9 ....

C/W

Notes:

1) Exceeding these ratings may damage the device.

2) About the details of EN pin’s ABS Max rating, see the EN

control section on page 14.

3) The maximum allowable power dissipation is a function of the

maximum junction temperature TJ (MAX), the junction-to-

ambient thermal resistance θJA, and the ambient temperature

TA. The maximum allowable continuous power dissipation at

any ambient temperature is calculated by PD (MAX) = (TJ

(MAX) - TA) / θJA. Exceeding the maximum allowable power

dissipation will cause excessive die temperature, and the

regulator will go into thermal shutdown. Internal thermal

shutdown circuitry protects the device from permanent

damage.

4) The device is not guaranteed to function outside of its

operating conditions.

5) Measured on EVQ4480-V-00A, 4-layer PCB, 50mmx50mm.

6) Measured on JESD51-7, 4-layer PCB. The value of θJA given

in this table is only valid for comparison with other packages

and cannot be used for design purposes. These values were

calculated in accordance with JESD51-7 and simulated on a

specified JEDEC board. They do not represent the

performance obtained in an actual application.