MP2270 datasheet(2/10 Pages) MPS

2 / 10 page

MP2270 – 1.8A, 24V, 700KHz STEP-DOWN CONVERTER

MP2270 Rev. 1.1

www.MonolithicPower.com

4/16/2010

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

ORDERING INFORMATION

Part Number*

Package

Top Marking

Free Air Temperature (TA)

MP2270DH

MSOP10w/Exposed Pad

2270D

-40

°C to +85°C

* For Tape & Reel, add suffix –Z (e.g. MP2270DH–Z).

For RoHS Compliant packaging, add suffix –LF (e.g. MP2270DH–LF–Z)

PACKAGE REFERENCE

EXPOSED PAD

ON BACKSIDE

Connect to GND

BST

N/C

GND

N/C

TOP VIEW

ABSOLUTE MAXIMUM RATINGS (1)

Supply Voltage VIN ....................................... 26V

VSW........................................-0.3V to VIN + 0.3V

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

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

Continuous Power Dissipation (TA = +25°C)

(2)

………………………………………………....2.3W

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 24V

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

Thermal Resistance

(4)

θJA

θJC

MSOP10 w/Exposed Pad .......55 ...... 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 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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