MPQ2918GL datasheet(4/32 Pages) MPS

4 / 32 page

MPQ2918 – 4V - 40V, CURRENT MODE, SYNC, STEP-DOWN CONTROLLER

MPQ2918 Rev. 1.01

www.MonolithicPower.com

8/17/2017

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

ABSOLUTE MAXIMUM RATINGS (1)

Input supply voltage (VIN)............................. 65V

BST supply voltage (VBST).................. VIN + 6.5V

SW ..................................................-0.3V to 65V

EN/SYNC..................................................... 55V

BST - SW.................................................... 6.5V

Supply voltage (VCC1) ............................... 6.5V

External supply voltage (VCC2)................... 15V

SENSE + / - ................................................. 28V

Differential sense (SENSE+ to SENSE-) ............

.....................................................-0.7V to +0.7V

TG...............................VSW - 0.3V to VBST + 0.3V

BG ................................... -0.3V to VCC1 + 0.3V

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

Continuous power dissipation (TA = +25°C)

(2)

TSSOP-20 EP............................................ 3.1W

QFN-20 (3mmx4mm)................................. 2.6W

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

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

Storage temperature................ -65°C to +175°C

Recommended Operating Conditions

Supply voltage (VIN) ............................4V to 40V

Output voltage (VOUT)................................. ≤25V

Supply voltage for (VCC2) ...............4.7V to 12V

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

Thermal Resistance

(3)

θJA

θJC

TSSOP-20 EP ........................ 40 ....... 8.... °C/W

QFN-20 (3mmx4mm).............. 48 ...... 10... °C/W

NOTES:

1) Absolute maximum 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) Measured on JESD51-7, 4-layer PCB.

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