MP2158 datasheet(2/13 Pages) MPS

2 / 13 page

MP2158 – 1A, 6V, 1.5MHz SYNCHRONOUS STEP-DOWN SWITCHER

MP2158 Rev. 1.0

www.MonolithicPower.com

10/10/2012

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

ORDERING INFORMATION

Part Number*

Package

Top Marking

MP2158GQH

QFN8 (2.0x1.5mm)

* For Tape & Reel, add suffix –Z (e.g. MP2158GQH–Z);

PACKAGE REFERENCE

TOP VIEW

VIN

PGND

AGND

OUT

QFN2.0x1.5-8

ABSOLUTE MAXIMUM RATINGS (1)

Supply Voltage VIN ...................................... 6.5V

VSW......................................................................

-0.3V (-1.5V for <10ns) to 6.5V (7V for <10ns)

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

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

C

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

C

Continuous Power Dissipation (TA = +25°C)

(2)

……….….. ............................................... 1.14W

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

C to +150C

Recommended Operating Conditions

(3)

Supply Voltage VIN .............................2.5V to 6V

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

Thermal Resistance

(4)

θJA

θJC

QFN8 (2.0x1.5mm)................ 110 ..... 55...

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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