MP38876 datasheet(2/15 Pages) MPS

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MP38876 – 15A, 28V, HIGH FREQUENCY STEP-DOWN WITH SYNCHRONOUS GATE DRIVER

MP38876 Rev. 0.91

www.MonolithicPower.com

11/4/2009

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

ORDERING INFORMATION

Part Number*

Package

Top Marking

Free Air Temperature (TA)

MP38876DL

3mm x 4mm QFN20

38876

–40

°C to +85°C

* For Tape & Reel, add suffix –Z (e.g. MP38876DL–Z).

For RoHS compliant packaging, add suffix –LF (e.g. MP38876DL–LF–Z)

PACKAGE REFERENCE

TOP VIEW

PIN 1 ID

VCC

SYNCOUT

SYNCIN

SS/TRK

COMP

VIN

PG BST VIN

GND GATE VIN

ABSOLUTE MAXIMUM RATINGS (1)

Supply Voltage VIN ....................................... 30V

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

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

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

Continuous Power Dissipation (TA = +25°C)

(2)

………………………………………………....2.9W

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 28V

Output Voltage VOUT.................... 0.8V to VIN -4V

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

Thermal Resistance

(4)

θJA

θJC

QFN20 (3mm x 4mm) .............48 ...... 11 ...

°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 JESD51-7, 4-layer PCB.

MP38876 Datasheet(PDF) 2 Page - Monolithic Power Systems

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