MPQ9840 – 36V, 3.5A, LOW IQ, SYNC STEP-DOWN CONVERTER, AEC-Q100

MPQ9840 Rev. 1.02

www.MonolithicPower.com

4

7/1/2020

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PACKAGE REFERENCE

TOP VIEW

QFN-16 (3mmx4mm)

ABSOLUTE MAXIMUM RATINGS (1)

Supply voltage (VIN)....................... -0.3V to 40V

Switch voltage (VSW) .....-0.3V to VIN (MAX) + 0.3V

BST voltage (VBST) ..................... VSW (MAX) + 6.5V

EN voltage (VEN) ............................. -0.3V to 40V

PG voltage ...................................... -0.3V to 40V

BIAS voltage ................................... -0.3V to 20V

All other pins ..................................... -0.3V to 6V

Continuous power dissipation (TA = +25°C) (2)

QFN-16 (3mmx4mm).................................. 2.6W

Junction temperature ................................ 150°C

Lead temperature...................................... 260°C

Storage temperature...................-65°C to 150°C

Recommended Operating Conditions

Supply voltage (VIN)........................ 3.3V to 36V

Operating junction temp. (TJ) (3)

…………………………………..-40°C to +125°C

Thermal Resistance (4)

θJA

θJC

QFN-16 (3mmx4mm)

JESD51-7............................... 48 ...... 11 ...°C/W

Thermal Characterization Parameter (5)

QFN-16 (3mmx4mm)

ΨJT

EV9840-L-00A ……….....….....5.................°C/W

NOTES:

1) Absolute maximum ratings are rated under room temperature

unless otherwise noted. Exceeding these ratings may

damage the device.

2) 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

produces an excessive die temperature, causing the regulator

to go into thermal shutdown. Internal thermal shutdown

circuitry protects the device from permanent damage.

3) Mission profiles requiring operation above 125°C TJ may be

supported; contact MPS for details.

4) Measured on JESD51-7, 4-layer PCB.

5) Measured on EV9840-L-00A, 6.35cm*6.35cm size, 2oz, 4-

layer PCB.