MPQ2490 datasheet(2/11 Pages) MPS

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MPQ2490

–INDUSTRIALGRADE,1.5A,36V,700kHzSTEP-DOWNWITHPROGRAMMABLEOUTPUTCURRENTLIMIT

MPQ2490 Rev. 1.02

www.MonolithicPower.com

7/26/2013

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

ORDERING INFORMATION

Part Number

Package

Top Marking

Free-Air Temperature (TA)

MPQ2490DQ

QFN10 (3x3mm)

-40°C to +85°C

* For Tape & Reel, add suffix

–Z (e.g. MPQ2490DQ–Z);

For RoHS compliant packaging, add suffix

–LF; (e.g. MPQ2490DQ–LF–Z)

PACKAGE REFERENCE

QFN10 (3mm X 3mm)

ABSOLUTE MAXIMUM RATINGS

(1)

Supply Voltage VIN .......................................40V

VSW ......................................–0.3V to VIN + 0.3V

VBST ..................................................VSW + 6.5V

VISN, vISP .............................................. 0V to15V

All Other Pins.............................

–0.3V to +6.5V

Junction Temperature .............................. 150

C

Continuous Power Dissipation (TA = +25°C)

(2)

QFN10 (3mm x 3mm) ................................2.5W

Lead Temperature ................................... 260

C

Storage Temperature..............

–65

C to +150C

Recommended Operating Conditions

(3)

Supply Voltage VIN .......................... 4.5V to 36V

Output Voltage VOUT (VIN>16.5V)..... 0.8V to 15V

Output Voltage VOUT (VIN≤16.5V)........................

.......................................0.8V to (VIN–1.5) V

Thermal Resistance

(4)

θJA

θJC

QFN10 (3mm x 3mm) .............50 ...... 12 ...

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.

Measured on approximately 1” square of 1 oz copper.

Operating Junction Temp. (TJ). .. -40°C to +85°C

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