MP5011
12V, 5A Switch with
Programmable Current Limit
DESCRIPTION
The MP5011 is a device designed to protect
circuitry on the output (source) from transients on
the input (V
CC
). It also protects the input from
undesirable shorts and transients coming from
the source.
At start up, the limited slew rate at the source
limits the inrush current. A small capacitor at the
dv/dt pin controls this slew rate. The dv/dt pin has
an internal circuit that allows the customer to float
this pin and still achieve a 1.4ms ramp time at the
source.
The maximum load at the output is current-
limited by using a sense MOSFET topology. An
external resistor from the I-LIMIT pin to the
source pin controls the magnitude of the current
limit.
An internal charge pump drives the gate of the
power device, allowing for the use of a DMOS
power MOSFET with an ON resistance of just
44mΩ.
The device also includes protective features to
protect the source against an input voltage that is
outside the operating range.
FEATURES
Integrated 44mΩ Power MOSFET
Enable/Fault Pin
Adjustable Slew Rate for Output Voltage
Adjustable Current Limit: 1A-5A
Thermal Protection
Over-Voltage Protection
APPLICATIONS
Hot Swap
PC Cards
Laptops
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Quality Assurance. “MPS” and “The
Future of Analog IC Technology” are Registered Trademarks of Monolithic
Power Systems, Inc.
TYPICAL APPLICATION
MP5011 Rev. 1.01
11/8/2013
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
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