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MP9403 Datasheet(PDF) 5 Page - Monolithic Power Systems

Part # MP9403
Description  3A, 7V, 250kHz Integrated Synchronous Step-Down Converter
PDF  13 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP9403 Datasheet(HTML) 5 Page - Monolithic Power Systems

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MP9403 – 3A, 7V, 250kHz INTEGRATED SYNCHRONOUS STEP-DOWN CONVERTER
MP9403 Rev.0.9
www.MonolithicPower.com
5
2/9/2010
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CURVES
VIN=5V, VOUT=2.5V, CIN=10μF×2, COUT=22uF×2, L=6.8μH, CSS=0.1μF, TA=25°C, unless otherwise
noted.
VO/AC
10mV/div.
VSW
5V/div.
Iinductor
0.5A/div.
VO/AC
10mV/div.
VSW
5V/div.
Iinductor
2A/div.
VO
1V/div.
VEN
5V/div.
VEN
5V/div.
VEN
5V/div.
VEN
5V/div.
VSW
5V/div.
Iinductor
1A/div.
VO
1V/div.
VSW
5V/div.
Iinductor
2A/div.
VO
1V/div.
VSW
5V/div.
Iinductor
1A/div.
VO
1V/div.
VSW
5V/div.
Iinductor
2A/div.
Enable Startup
Enable Startup
Enable Shutdown
Enable Shutdown
Efficiency vs.
Load Current
0
10
20
30
40
50
60
70
80
90
100
0.01
0.1
1
10
LOAD CURRENT(A)
Efficiency vs.
Load Current
0
10
20
30
40
50
60
70
80
90
100
0.01
0.1
1
10
LOAD CURRENT(A)
VIN=4.3V
VOUT=1.8V
IO=0A
IO=0A
IO=3A
IO=3A
VOUT=3.3V
VIN=7V
VIN=5V
VIN=5V
VIN=7V
Output Ripple Voltage
Output Ripple Voltage
IO=0A
IO=3A



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