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MP2495 Datasheet(PDF) 5 Page - Monolithic Power Systems

Part # MP2495
Description  Integrated 100V Load Dump Protection, 2A Step Down Regulator with Output Current Control
PDF  13 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP2495 Datasheet(HTML) 5 Page - Monolithic Power Systems

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MP2495– INTEGRATED100VLOAD DUMPPROTECTION,2ASTEPDOWNREGULATORWITH OUTPUTCURRENTCONTROL
MP2495 Rev. 1.0
www.MonolithicPower.com
5
7/24/2012
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CHARACTERISTICS
C1=C2=4.7μF, C3=C4=10μF, C8=0.1μF, L=12μH, TA=25ºC, unless otherwise noted
DUTY CYCLE (%)
Peak Current vs.
Duty Cycle
40
2.0
2.2
2.4
2.6
2.8
3.0
3.2
50
60
70
80
90
11.7
11.8
11.9
12.0
12.1
12.2
12.3
Load Regulation
LOAD CURRENT (mA)
LOAD CURRENT (mA)
LOAD CURRENT (mA)
Load Regulation
Load Regulation
0
400
3.20
3.24
3.28
3.32
3.36
3.40
4.90
4.94
4.98
5.02
5.06
5.10
800
1200 1600 2000
0
400
800
1200 1600 2000
0
400
800
1200 1600 2000
50
60
70
80
90
100
LOAD CURRENT (mA)
Efficiency vs.
Load Current
10
100
1000
10000
50
60
70
80
90
100
LOAD CURRENT (mA)
Efficiency vs.
Load Current
10
100
1000
10000
VOUT=5V
VIN=8V
VIN=12V
VIN=24V
50
60
70
80
90
100
LOAD CURRENT (mA)
Efficiency vs.
Load Current
10
100
1000
10000
VIN=8V
VIN=12V
VIN=24V
VOUT=3.3V
VIN=18V
VIN=24V
VIN=36V
VOUT=12V
VIN=5V
VIN=12V
VIN=24V
VIN=8V
VIN=12V
VIN=24V
VIN=24V
VIN=36V
VIN=15V
VOUT=3.3V
0
0.5
1.0
1.5
2.0
2.5
0.5
1.5
2.5
3.5
4.5
5.5
Current Regulation
VIN =12V, VOUT=5V
R: Sense to RS, L: Sense to DCR
R
L
Loop Gain Bode Plot
VIN =12V, VOUT=5V, IOUT=0.5A
LOAD CURRENT (A)
1
10
100
1000
FREQUENCY (kHz)
-60
-40
-20
0
20
40
60
-135
-90
-45
0
45
90
135
Phase
Gain



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