MP9151 datasheet(2/19 Pages) MPS

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MP9151

– 20V, 4A SYNCHRONOUS STEP-DOWN CONVERTER

MP9151 Rev. 1.0

www.MonolithicPower.com

3/20/2013

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

ORDERING INFORMATION

Part Number

Package

Top Marking

MP9151GD*

QFN14 (2x3mm)

AEM

* For Tape & Reel, add suffix

–Z (eg. MP9151GD–Z); .

PACKAGE REFERENCE

TOP VIEW

QFN14 (2x3mm)

ABSOLUTE MAXIMUM RATINGS

(1)

VIN ................................................ -0.3V to 22V

VSW ................................................ -0.3V to 23V

VBST .....................................................VSW + 6V

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

(2)

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

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

Continuous Power Dissipation (TA = +25°C)

(3)

2x3 QFN14 ................................................1.8W

Recommended Operating Conditions

(4)

Supply Voltage VIN .......................... 4.5V to 20V

Output Voltage VOUT............... 0.8V to VIN x 95%

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

Thermal Resistance

(5)

θJA

θJC

QFN14 (2x3mm) .................... 70 ...... 15... C/W

Notes:

1) Exceeding these ratings may damage the device.

2) Please refer to Page 10, Enable Control section, For absolute

maximum rating of EN pin.

3) The maximum allowable power dissipation is a function of the

maximum junction temperature TJ (MAX), the junction-to-

ambient thermal resistance θ

JA, 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.

4) The device is not guaranteed to function outside of its

operating conditions.

5) Measured on JESD51-7, 4-layer PCB.

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