MP8709 datasheet(2/14 Pages) MPS

2 / 14 page

MP8709 – SYNCHRONOUS STEP-DOWN CONVERTER WITH INTERNAL MOSFETS

MP8709 Rev. 1.01

www.MonolithicPower.com

12/14/2011

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

ORDERING INFORMATION

Part Number*

Package

Top Marking

Free Air Temperature (TA)

MP8709EN

SOIC8E

MP8709EN

-20

°C to +85°C

* For Tape & Reel, add suffix –Z (e.g. MP8709EN–Z);

For RoHS compliant packaging, add suffix –LF (e.g. MP8709EN–LF–Z)

PACKAGE REFERENCE

BST

GND

VCC

EN/SYNC

TOP VIEW

EXPOSED PAD

ON BACKSIDE

CONNECT TO GND

ABSOLUTE MAXIMUM RATINGS (1)

Supply Voltage VIN ....................................... 22V

VSW........................-0.3V (-5V for < 10ns) to 23V

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

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

Operating Temperature.............. -20

°C to +85°C

Continuous Power Dissipation (TA = +25°C)

(2)

……………………………………………....2.5W

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

Operating Junct. Temp (TJ)...... -20°C to +125°C

Thermal Resistance

(4)

θJA

θJC

SOIC8E (Exposed Pad) ..........50 ...... 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 JESD51-7, 4-layer PCB.

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