TM
MP2101 – 1.6MHz SYNCHRONOUS STEP-DOWN PLUS 200mA LDO
TYPICAL PERFORMANCE CHARACTERISTICS
VIN = 3.6V, VOUT1 = 1.8V, VOUT2 = 1.2V, CIN1 = 4.7µF, CIN2 = 1µF, CO1 = 10µF, CO2 = 1µF, L = 2.2µH,
TA = +25°C, unless otherwise noted.
Efficiency vs
Load Current
Efficiency vs
Load Current
Efficiency vs
Load Current
90
80
70
60
50
40
30
20
10
95
85
75
65
55
45
35
25
95
85
75
65
55
45
35
25
V
=3.3V
IN
V
=4.2V
V
=3.3V
IN
IN
V
=4.2V
IN
V
=5.0V
IN
V
=4.2V
IN
V
=5.0V
IN
V
=5.0V
IN
10
100
1000
10
100
LOAD CURRENT (mA)
1000
10
100
LOAD CURRENT (mA)
1000
LOAD CURRENT (mA)
Efficiency vs
Load Current
Efficiency vs
Load Current
Efficiency vs
Load Current
95
85
75
65
55
45
35
25
100
90
80
70
60
50
40
100
90
80
70
60
50
40
30
V
=3.3V
IN
V
=3.3V
IN
V
=4.2V
IN
V
=4.2V
IN
V
=5.0V
IN
V
=4.2V
IN
V
=5.0V
IN
V
=5.0V
IN
10
100
1000
10
100
1000
10
100
LOAD CURRENT (mA)
1000
LOAD CURRENT (mA)
LOAD CURRENT (mA)
Output Voltage vs
Load Current
Output Voltage vs
Load Current
Output Voltage vs
Load Current
1.82
1.81
1.80
1.79
1.78
1.77
1.76
2.52
2.50
2.48
2.46
2.44
2.42
2.40
3.33
3.32
3.31
3.30
3.29
3.28
3.27
3.26
3.25
V
=4.2V
IN
V
=3.3V
V
=4.2V
IN
IN
V
=4.2V
IN
V
=5.0V
IN
V
=3.3V
IN
V
=5.0V
IN
V
=5.0V
IN
0
200 400 600 800 1000
LOAD CURRENT (mA)
0
200 400 600 800 1000
LOAD CURRENT (mA)
0
200 400 600 800 1000
LOAD CURRENT (mA)
MP2101 Rev. 1.0
8/18/2006
www.MonolithicPower.com
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