MP2105 Просмотр технического описания (PDF) - Monolithic Power Systems
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MP2105 Datasheet PDF : 8 Pages
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TM
MP2105 – 1MHz 800mA SYNCHRONOUS STEP-DOWN CONVERTER
TYPCIAL PERFORMANCE CHARACTERISTICS
VIN = 3.3V, VOUT = 1.8V, L1 = 4.7µH, C1 = 4.7µF, C3 = 10µF, TA = +25°C, unless otherwise noted.
100
95 VIN=3.3V
90
85
VIN=4.2V
80
75
70
65
60
55
50
10
100
1000
LOAD CURRENT (mA)
MP2105-EC01
Feedback Voltage vs
Temperature
0.603
0.602
0.601
0.600
0.599
0.598
0.597
-40 -20 0 +20 +40 +60 +80 +100
TEMPERATURE (°C)
MP2105-TPC01
Load Transient
(IOUT=0mA to 500mA step)
VOUT
100mV/div.
IOUT
0.5A/div.
95
90 VIN=3.3V
85
80
VIN=4.2V
75
70
65
60
55
50
10
100
1000
LOAD CURRENT (mA)
MP2105-EC02
Switching Frequency vs
Temperature
1.10
1.08
1.06
1.04
1.02
1.00
0.98
0.96
0.94
-40
-20
0
+20 +40 +60 +80 +100
TEMPERATURE (°C)
MP2105-TPC02
Light Load Operation
(IOUT=0mA)
VOUT
10mV/div.
IL
0.2A/div.
SW
2V/div.
MP2105 Rev. 1.3
5/11/2006
MP2105-TPC03
MP2105-TPC04
www.MonolithicPower.com
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