MP2144 – 2A, 5.5V, 1.2MHz. 40μA IQ, SYNCHRONOUS STEP-DOWN SWITCHER
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
VIN = 5V, VOUT = 1.2V, L = 1.0µH, COUT=22µF, TA = 25°C, unless otherwise noted
Output Ripple
Output Ripple
Output Ripple
IOUT=0A
IOUT=1A
IOUT=2A
V
V
out
V
out
out
10.0mV/div.
10.0mV/div.
50.0mV/div.
V
V
sw
sw
V
sw
2.00V/div.
2.00V/div.
2.00V/div.
I
L
I
I
L
1.00A/div.
L
2.00A/div.
1.00A/div.
VIN Power Up
without Load
Output Ripple
Output Ripple
VIN = 6V, VOUT = 0.6V, IOUT=2A
VIN = 6V, VOUT = 0.6V, IOUT=0A
V
V
V
out
out
out
500mV/div.
100mV/div.
20.0mV/div.
V
in
V
sw
5.00V/div.
V
sw
5.00V/div.
5.00V/div.
V
sw
5.00V/div.
I
L
2.00A/div.
I
L
I
L
2.00A/div.
2.00A/div.
VIN Power Up
with 2A Load
VIN Shut Down
without Load
VIN Shut Down
with 2A Load
V
V
out
out
V
out
500mV/div.
500mV/div.
500mV/div.
V
in
5.00V/div.
V
in
V
in
2.00V/div.
2.00V/div.
V
sw
V
sw
V
sw
2.00V/div.
5.00V/div.
2.00V/div.
I
L
I
I
L
L
2.00A/div.
2.00A/div.
2.00A/div.
MP2144 Rev. 1.03
12/20/2012
www.MonolithicPower.com
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© 2012 MPS. All Rights Reserved.
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