MP2305(2006) データシートの表示（PDF） - Monolithic Power Systems
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MP2305 Datasheet PDF : 10 Pages
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TM
MP2305 – 2A, 23V SYNCHRONOUS RECTIFIED, STEP-DOWN CONVERTER
TYPICAL PERFORMANCE CHARACTERISTICS
VIN = 12V, VO = 3.3V, L = 10µH, C1 = 10µF, C2 = 22µF, TA = +25°C, unless otherwise noted.
Steady State Test
VIN = 12V, VOUT = 3.3V
IOUT = 0A, IIN= 8.2mA
VIN
20mV/div.
VOUT
20mV/div.
IL
1A/div.
VSW
10V/div.
MP2305-TPC01
Startup through Enable
VIN = 12V, VOUT = 3.3V
IOUT = 1A (Resistance Load)
VEN
5V/div.
VOUT
2V/div.
IL
1A/div.
VSW
10V/div.
2ms/div.
MP2305-TPC02
Shutdown through Enable
VIN = 12V, VOUT = 3.3V
IOUT = 1A (Resistance Load)
VEN
5V/div.
VOUT
2V/div.
IL
1A/div.
VSW
10V/div.
2ms/div.
MP2305-TPC03
Heavy Load Operation
2A Load
VIN, AC
200mV/div.
VO, AC
20mV/div.
IL
1A/div.
Medium Load Operation
1A Load
Light Load Operation
No Load
VIN, AC
200mV/div.
VIN, AC
20mV/div.
VO, AC
20mV/div.
IL
1A/div.
VO, AC
20mV/div.
IL
1A/div.
VSW
10V/div.
VSW
10V/div.
VSW
10V/div.
MP2305-TPC04
MP2305-TPC05
MP2305-TPC06
Short Circuit
Protection
Short Circuit
Recovery
Load Transient
VOUT
2V/div.
IL
2A/div.
VOUT
2V/div.
IL
2A/div.
MP2305-TPC07
VOUT
200mV/div.
IL
1A/div.
ILOAD
1A/div.
MP2305-TPC08
MP2305-TPC09
MP2305 Rev. 1.7
www.MonolithicPower.com
4
4/17/2006
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