MP2155 datasheet(2/18 Pages) MPS

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MP2155 –HIGH EFFICIENCY SINGLE INDUCTOR BUCK-BOOST CONVERTER WITH 2.2A SWITCHES

MP2155 Rev. 1.0

www.MonolithicPower.com

1/26/2014

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

ORDERING INFORMATION

Part Number*

Package

Top Marking

MP2155GQ*

QFN10 (3X3)

ADR

* For Tape & Reel, add suffix –Z (e.g. MP2155GQ–Z);

PACKAGE REFERENCE

TOP VIEW

MODE/

SYNC

VCC

AGND

SW1

PGND

VIN

SW2

VOUT

ABSOLUTE MAXIMUM RATINGS (1)

IN to GND .....................................–0.3V to 6.5V

SW1/2 to GND ......–0.3V(-2V for <10ns) to 6.5V

All Other Pins...............................–0.3V to 6.5 V

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

°C

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

°C

Continuous Power Dissipation (TA = +25°C)

(3)

QFN10 3X3mm .......................................... 2.5W

Storage Temperature............... -65

°C to +150°C

Recommended Operating Conditions

(4)

Supply Voltage VIN .............................2V to 5.5V

Output Voltage VOUT...........................1.5V to 5V

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

Thermal Resistance

(5)

θJA

θJC

3X3 QFN10............................. 50 ...... 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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