MP38874 datasheet(2/11 Pages) MPS

2 / 11 page

MP38874 – 8A, 21V, 600KHz STEP-DOWN WITH SYNCHRONOUS GATE DRIVER

MP38874 Rev. 1.1

www.MonolithicPower.com

10/13/2010

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

ORDERING INFORMATION

Part Number*

Package

Top Marking

Free Air Temperature(TA)

MP38874DL

3x4 QFN14

38874

–40

°C to +85°C

* For Tape & Reel, add suffix –Z (e.g. MP38874DL–Z);

For RoHS compliant packaging, add suffix –LF (e.g. MP38874DL–LF–Z)

PACKAGE REFERENCE

ABSOLUTE MAXIMUM RATINGS (1)

Supply Voltage VIN ....................................... 23V

VSW........................-0.3V (-5V for < 10ns) to 24V

VBS ....................................................... VSW + 6V

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

Continuous Power Dissipation

(TA =

+25°C)

(2)

............................................................. 2.8W

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

°C

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

°C

Storage Temperature.............. –65

°C to +150°C

Recommended Operating Conditions

(3)

Supply Voltage VIN ...........................4.5V to 21V

Output Voltage VOUT.........................0.8V to 15V

Operating Junct. Temp (TJ)...... -40°C to +125°C

Thermal Resistance

(4)

θJA

θJC

3x4 QFN14 ............................. 45 ...... 10...

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

operating conditions.

4) Measured on JESD5 1-7, 4-layer PCB.

TOP VIEW

EN/SYNC

N/C

GND

VCC

BST

EXPOSED PAD

ON BACKSIDE

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