
MP2354 – 2A, 23V, 380KHz STEP-DOWN CONVERTER
MP2354 Rev. 1.4
1/6/2006
www.MonolithicPower.com
4
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2006 MPS. All Rights Reserved.
TM
TYPICAL PERFORMANCE CHARACTERISTICS
Circuit of Figure 2, V
IN
= 12V, V
O
= 3.3V, L1 = 15μH, C1 = 10μF, C2 = 22μF, T
A
= +25
°
C, unless
otherwise noted.
Heavy Load Operation
2A Load
V
O, AC
50mV/div.
V
IN, AC
200mV/div.
V
LX
10V/div.
I
L
1A/div.
V
O, AC
20mV/div.
V
IN, AC
20mV/div.
V
LX
10V/div.
I
L
1A/div.
MP2354-TPC01
MP2354-TPC02
Light Load Operation
No Load
V
RUN
2V/div.
V
1V/div.
I
L
1A/div.
MP2354-TPC03
V
O, AC
200mV/div.
I
1A/div.
I
L
1A/div.
MP2354-TPC04
Load Transient
V
OUT
2V/div.
I
L
1A/div.
V
OUT
2V/div.
I
L
1A/div.
MP2354-TPC05
Short Circuit Protection
Startup from Shutdown
2A Resistive Load
MP2354-TPC06
Short Circuit Recovery