MP2562 – 1A, 4MHz, 50V STEP-DOWN CONVERTER
TYPICAL PERFORMANCE CHARACTERISTICS
VIN = 12V, VOUT=5V, C1 = 10µF, C2 = 22µF, L1 = 10µH and TA = +25C, unless otherwise noted.
Oscillating Frequency
vs Rfreq
Efficiency @V
=2.5V
OUT
Efficiency @V
=5V
OUT
4000
3500
3000
2500
2000
1500
1000
500
100
90
80
70
60
50
40
100
90
80
70
60
50
40
V
=8V
IN
V
=5V
IN
V
=12V
IN
V
=24V
IN
V
=24V
IN
V
=12V
IN
f =500kHz
f =500kHz
s
s
0
10
100
1000
10
100
OUTPUT CURRENT (mA)
1000
10
100
OUTPUT CURRENT (mA)
1000
R
(
)
freq
Steady State
Steady State
I
= 0.1A
I
= 1A
OUT
OUT
V
V
OUT
OUT
AC Coupled
10mV/div.
AC Coupled
20mV/div.
V
SW
V
SW
10V/div.
10V/div.
I
L
1A/div.
I
L
1A/div.
1
2
MP2562 Rev. 1.0
2/28/2014
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5
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