MP1586EN datasheet(2/16 Pages) MPS

2 / 16 page

MP1586 – 3A, 28V, 50kHz TO 400kHz STEP-DOWN CONVERTER

MP1586 Rev. 0.91

www.MonolithicPower.com

1/8/2010

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

ORDERING INFORMATION

Part Number*

Package

Top Marking

Free Air Temperature (TA)

MP1586EN

SOIC8E

MP1586EN

–20

°C to +85°C

* For Tape & Reel, add suffix –Z (e.g. MP1586EN–Z);

For RoHS Compliant Packaging, add suffix –LF. (e.g. MP1586EN–LF–Z)

PACKAGE REFERENCE

COMP

BST

VIN

FREQ

GND

TOP VIEW

ABSOLUTE MAXIMUM RATINGS (1)

Supply Voltage (VIN).....................–0.3V to +30V

Switch Voltage (VSW).............–0.3V to 30 + 0.3V

BST to SW .....................................–0.3V to +6V

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

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 28V

Output Voltage VOUT ........................ 0.8V to 25V

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

Thermal Resistance

(4)

θJA

θJC

SOIC8E .................................. 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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