MP4570 – 3A, 55V, SYNCHRONOUS STEP DOWN CONVERTER

MP4570 Rev. 1.01

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4

1/4/2017

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All Other Pins.................................–0.3V to +6V

EN Sink Current....................................... 150μA

Continuous Power Dissipation

TSSOP-20 EP.......................................... 2.78W

Junction Temperature...............................150°C

Lead Temperature ...................................260°C

Storage Temperature.............. –65°C to +150°C

Recommended Operating Conditions

Thermal Resistance

(3)

TSSOP-20 EP.........................45 ...... 10 ... °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 will cause

excessive die temperature, and the regulator will go into

thermal shutdown. Internal thermal shutdown circuitry

protects the device from permanent damage.

3)

Measured on JESD51-7, 4-layer PCB.