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| MP2495 Datasheet, PDF (1/13 Pages) Monolithic Power Systems – Integrated 100V Load Dump Protection, 2A Step Down Regulator with Output Current Control | |||
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The Future of Analog IC Technology
MP2495
Integrated 100V Load Dump Protection, 2A Step
Down Regulator with Output Current Control
DESCRIPTION
The MP2495 is a monolithic step-down switch
mode converter with a programmable output
current limit and an integrated input over-
voltage protection switch It achieves 2.0A
continuous output current over a wide input
supply range with excellent load and line
regulation.
The maximum output current can be
programmed by sensing current through the
inductor DC resistance (DCR) or an accurate
sense resistor.
Fault condition protection includes cycle-by-cycle
current limiting and thermal shutdown.
The MP2495 can survive high-voltage transients
such as those found in automotive and industrial
applications.
The MP2495 requires a minimum number of
readily available standard external components.
The MP2495 is available in a 16-pin SOIC package.
FEATURES
⢠Replaces External Transorb
⢠Input Surge Protection Up to 100V
⢠Programmable up to 2.0A Output Current
⢠Output Adjustable from 0.8V to 15V
⢠Programmable Output Current Limit without
power loss
⢠0.25⦠Internal Power MOSFET Switch
⢠Stable with Low ESR Output Ceramic
Capacitors
⢠95% Efficiency @ 500mA (Vo=5V)
⢠Fixed 700kHz Frequency
⢠Thermal Shutdown
⢠Cycle-by-Cycle Over Current Protection
⢠Available in a 16-Pin SOIC Package
APPLICATIONS
⢠USB Power Supplies
⢠Automotive Cigarette Lighter Adapters
⢠Power Supply for Linear Chargers
âAll MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Quality Assurance. MPSâ and âThe
Future of Analog IC Technologyâ are Registered Trademarks of Monolithic
Power Systems, Inc.
TYPICAL APPLICATION
Typical 12V
Surge Voltage to 80V
VIN
R5
EN
GND
D2
12
8 IN
7 IN
14
9
VDD
10
OUT
OUT
BST
ISN 4
ISP 3
C9
10nF
MP2495
16
EN
5 CTR
13
SW
D1
2 SS
FB 1
GND
15
C6
10nF
L1
5V
VOUT
GND
Efficiency vs.
Load Current
100
VIN=8V
90
80
VIN=12V
70
60
50
10
VIN=24V
VOUT=5V
100
1000
LOAD CURRENT (mA)
10000
MP2495 Rev. 1.0
www.MonolithicPower.com
1
7/24/2012
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
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