MP2309DS データシートの表示（PDF） - Monolithic Power Systems
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MP2309DS Datasheet PDF : 10 Pages
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TM
MP2309 – 1A, 23V, 340KHz SYNCHRONOUS RECTIFIED STEP-DOWN CONVERTER
TYPICAL PERFORMANCE CHARACTERISTICS
VIN = 12V, VOUT = 3.3V, L = 10µH, C1 = 10µF, C2 = 22µF, TA = +25°C, unless otherwise noted.
Full Load Operation
1A Load
No Load Operation
No Load
VIN, AC
200mV/div.
VO, AC
20mV/div.
IL
1A/div.
VSW
10V/div.
VIN, AC
20mV/div.
VO, AC
20mV/div.
IL
1A/div.
VSW
10V/div.
MP2309-TPC01
VEN
5V/div.
VOUT
2V/div.
IL
1A/div.
VSW
10V/div.
MP2309-TPC02
2ms/div.
MP2309-TPC03
VEN
5V/div.
VOUT
2V/div.
IL
1A/div.
VSW
10V/div.
Shutdown through Enable
VIN = 12V, VOUT = 3.3V, No Load
Shutdown through Enable
VIN = 12V, VOUT = 3.3V,
IOUT = 1A (Resistance Load)
VEN
5V/div.
VOUT
2V/div.
VEN
5V/div.
VOUT
2V/div.
2ms/div.
IL
1A/div.
VSW
10V/div.
MP2309-TPC04
IL
1A/div.
2ms/div.
MP2309-TPC05
VSW
10V/div.
2ms/div.
MP2309-TPC06
Load Transient Test
VIN = 12V, VOUT = 3.3V,
IOUT = 0.2A to 1A steps
Short Circuit Entry
Short Circuit Recovery
VOUT
200mV/div.
IL
1A/div.
iLOAD
1A/div.
VOUT
2V/div.
IL
1A/div.
MP2309-TPC07
VOUT
2V/div.
IL
1A/div.
MP2309-TPC8
MP2309-TPC09
MP2309 Rev. 1.4
www.MonolithicPower.com
4
3/13/2006
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© 2006 MPS. All Rights Reserved.
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