MP5017 – 3V-5.5V, 1A-5A PROGRAMMABLE CURRENT LIMIT SWITCH

MP5017 Rev.1.0

www.MonolithicPower.com

10

10/15/2015

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PIN FUNCTIONS

Pin #

Name

Description

1, 2, 3

VCC

Supply voltage. The MP5017 operates on a 3V to 5.5V continuous input voltage

range with up to 16V of maximum transient input voltage. Decouple the input rail

with a 4.7μF ceramic capacitor. Connect using a wide PCB trace.

4

SAS/OV

SAS disable. Pull SAS/OV low to enable the part; pull SAS/OV high to disable the

part. SAS/OV has an internal 1MΩ pull-down resistor to ground, so it can start up

automatically when SAS/OV is floating. Connect SAS/OV to the tap of an external

resistor divider from input to GND to set the input over voltage.

5

EN

Enable. EN is a digital input that turns the regulator on or off. Float EN or drive EN

high to turn on the regulator; drive EN low to turn off the regulator.

6

Fault

7

DV/DT

Slew rate. The internal DV/DT circuit controls the slew rate of the output voltage at

turn on. An external capacitor from DV/DT to ground is needed to set the soft-start

time.

8

ILIMIT

Current limit set. Place a resistor between ILIMIT and ground to set the value of

the current limit.

9, 10, 11

VOUT

Output voltage. VOUT is controlled by the IC.

12,

Exposed

Pad

GND

System ground.