MP4571

– 60V, 1A, SYNCHRONOUS STEP-DOWN CONVERTER

MP4571 Rev. 1.1

www.MonolithicPower.com

6

2/22/2023

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

© 2023 MPS. All Rights Reserved.

ABSOLUTE MAXIMUM RATINGS (1)

VIN……………………………………………… 65V

VSW....................................... -0.3V to VIN + 0.3V

VBST ...................................................... VSW + 6V

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

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

QFN-12 (2.5mmx3mm) ............................ 2.08W

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

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

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

Electrostatic Discharge (ESD) Rating

Human body model (HBM) .......................

±2kV

Charged device model (CDM) ............... ±750V

Recommended Operating Conditions

Continuous supply voltage (VIN).......4.5V to 60V

Output voltage (VOUT)...................1V to 0.9 x VIN

Load current range .............................. 0A to 1A

Operating junction temp (TJ)……………………..

……………………………….. -40°C to +125°C (3)

Thermal Resistance

θJA θJC

QFN-12 (2.5mmx3mm)

JESD51-7 (4).............................60......13....°C/W

EVQ4571-QB-00A (5)................45......11....°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,

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

module will go into thermal shutdown. Internal thermal

shutdown circuitry protects the device from permanent

damage.

3) This device is not guaranteed to function outside its operating

conditions.

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

5) Measured on MPS standard EVB: 8.9cmx8.9cm, 2oz. copper,

4-layer PCB.