MP5017

3V-.5.5V, 1A – 5A Current Limit Switch with

Over-Voltage Clamp and Reverse Blocking

in 2mmx3mm QFN Package

MP5017 Rev.1.0

www.MonolithicPower.com

1

10/15/2015

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

© 2015 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP5017 is a protection device designed to

protect circuitry on the output from transients

from the input. Also, it protects the input from

unwanted shorts and transients coming from

the output.

During start-up, the inrush current is controlled

by limiting the slew rate at the output. The slew

rate is controlled with a small capacitor at

DV/DT.

The maximum load at the output is current

limited. The magnitude of the current limit is

controlled by an external resistor from ILIMIT to

GND. By controlling the gate voltages with a

pair of N-channel MOSFETs, any current

flowing from the output to the input is blocked.

Under-voltage lockout (UVLO) ensures that the

input is above the minimum operating threshold

before the power device is turned on. If the

input voltage rises above 5.8V, the output

voltage is limited quickly to 5.8V. SAS/OV is

used to program the input over-voltage

protection threshold.

mode (low level) when any over-current, over-

temperature, or output over-voltage is detected.

The MP5017 is available in a QFN-12

(2mmx3mm) package.

FEATURES

• 3V to 5.5V Continuous Operating Input

Range

• 16V Absolute Maximum Input Voltage

• Output Discharge

• SAS/OV Disable to Support DEVSLP or

POWER_DOWN

• 5.8V Fast Output OVP Response

• Reverse Current Blocking

• Adjustable Current-Limit through ILIMIT

• 210μA Low Quiescent Current

• Programmable Soft-Start Time through

DV/DT

• Fast Response for Hard-Short Protection

• Fault Indication for Over-Current, Over-

Temperature, and Output Over-Voltage

• OTP Auto-Retry with 76ms Recovery

Delay

• Available in a QFN-12 (2mmx3mm)

Package

APPLICATIONS

• HDD and SSD

• Hot Swap

• Wireless Modem Data Cards

• PC Cards

• USB Power Distribution

All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For

MPS green status, please visit the MPS website under Quality Assurance.

“MPS” and “The Future of Analog IC Technology” are registered trademarks of

Monolithic Power Systems, Inc.

TYPICAL APPLICATION