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MP2492DN Fiches technique(PDF) 6 Page - Monolithic Power Systems

No de pièce MP2492DN
Description  2A, 55V, 100kHz Step-Down Converter with Programmable Output Current Limit
PDF  11 Pages
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Fabricant  MPS [Monolithic Power Systems]
Site Internet  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP2492DN Fiches technique(HTML) 6 Page - Monolithic Power Systems

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MP2492 – 2A, 55V, 100kHz WITH PROGRAMMABLE OUTPUT CURRENT LIMIT
MP2492 Rev. 1.0
www.MonolithicPower.com
6
12/20/2010
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
C1=220uF, C2=2.2uF, C3=39uF, C4=22uF, L=39uH, TA=25ºC，unless otherwise noted.
VIN
100mV/div.
VSW
10V/div.
VOUT
10mV/div.
VOUT
5V/div.
VOUT
5V/div.
IL
2A/div.
10us/div.
20ms/div.
20ms/div.
Steady State
VIN = 12V, VOUT =5V, IOUT = 2A
Electrical Load
VIN
10V/div.
VSW
10V/div.
IOUT
2A/div.
IOUT
2A/div.
Power Ramp Up
VIN = 12V, VOUT = 5V, IOUT = 2A
Resistor Load
VIN
10V/div.
VSW
10V/div.
Power Ramp Down
VIN = 12V,VOUT = 5V, IOUT = 2A
Resistor Load
VPG
5V/div.
VSW
50V/div.
VOUT
5V/div.
IOUT
2A/div.
Steady State
VIN = 50V, VOUT = 5V, IOUT = 1.8A
Electrical Load
VFB vs. Temperature
VOUT
20mV/div.
VOUT
2V/div.
VOUT
2V/div.
IOUT
1A/div.
IOUT
2A/div.
IOUT
2A/div.
4ms/div.
Load Transient Response
VIN = 12V,VOUT = 5V, IOUT = 0.1A to 2A
1us/div.
2us/div.
Short Circuit
VIN = 12V,VOUT = 5V, IOUT=0.5A
Short Circuit Recovery
VIN = 12V,VOUT = 5V
30
0
5
10
15
20
25
30
35
40
45
50
55
60
100
600
800
400
1000
FREQUENCY (MHz)
0.790
0.792
0.794
0.796
0.798
0.800
-50
-20
10
40
70
100
E lec tric F ield S trength 3 m Q P



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