MP2303 查看數據表（PDF） - Monolithic Power Systems
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MP2303 Datasheet PDF : 14 Pages
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TM
MP2303 – 3A, 28V, 340KHz SYNCHRONOUS RECTIFIED, STEP-DOWN CONVERTER
INITIAL RELEASE – SPECIFICATIONS SUBJECT TO CHANGE
TYPICAL PERFORMANCE CHARACTERISTICS
VIN = 12V, VO = 3.3V, L = 10µH, C1 = 10µF, C2 = 22µF x 2, TA = +25°C, unless otherwise noted.
Efficiency vs
Load Current
Feeback Voltage vs.
Temperature
95
0.810
90
VIN = 12V
85
80
0.805
0.800
VIN = 12V
VIN = 28V
75
VIN = 24V
70
0.795
65
60
55
50
0
VOUT = 2.5V
0.5 1.0 1.5 2.0 2.5 3.0 3.5
LOAD CURRENT (A)
MP2303-EC02
0.790
0.7850
VIN = 4.75V
0.780
-40
-20 0 20 40 60 80
TEMPERATURE (oC)
MP2303-TPC01
UVLO Rising vs.
Temperature
4.5
4.4
4.3
4.2
4.1
4.0
3.9
3.8
3.7
-40
-20 0 20 40 60 80
TEMPERATURE (oC)
MP2303-TPC02
Enable Lockout Threshold
vs. Temperature
2.70
2.65
2.60
2.55
2.50
2.45
2.40
2.35
2.30
-40
-20 0 20 40 60 80
TEMPERATURE (oC)
MP2303-TPC03
Oscillator Frequency
345
340
335
330
325
-40
-20 0 20 40 60 80
TEMPERATURE (oC)
MP2303-TPC04
MP2303 Rev. 0.92
www.MonolithicPower.com
5
5/2/2006
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© 2006 MPS. All Rights Reserved.
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