MP2174C

– 5.5V, 4A, 1.1MHZ, SYNCHRONOUS STEP-DOWN SWITCHER

MP2174C Rev. 1.0

www.MonolithicPower.com

3

8/7/2019

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© 2019 MPS. All Rights Reserved.

ABSOLUTE MAXIMUM RATINGS (1)

Supply voltage (VIN) ....................................6.5V

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

-0.3V (-3V for <10ns) to +6.5V (8V for

<10ns)

All other pins............................... -0.3V to +6.5V

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

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

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

……….….. .................................................1.6W

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

Recommended Operating Conditions (3)

Supply voltage (VIN) ....................... 2.7V to 5.5V

Operating junction temp (TJ) .... -40°C to +125°C

Thermal Resistance

θJA

θJC

QFN-12 (2mmx2mm)

EV2174C-G-00A (4)..................45........ 8....°C/W

JESD51-7 (5)

………...........…....80.......16...°C/W

Notes:

1) 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 θ

JA, 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.

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

operating conditions.

4) Measured on EV2174C-G-00A, 2-layer PCB, 63mmx63mm.

5) Measured on JESD51-7, 4-layer PCB. The value of

θ

JA given

in this table is only valid for comparison with other packages

and cannot be used for design purposes. These values are

calculated in accordance with JESD51-7, and simulated on a

specified

JEDEC

board.

They

do

not

represent

the

performance obtained in an actual application.