TM
MP2104 – 1.7MHz 600mA SYNCHRONOUS STEP-DOWN CONVERTER
TYPICAL PERFORMANCE CHARACTERISTICS
VIN = 3.3V, VOUT = 1.8V, L1 = 10µH, C1 = 4.7µF, C3 = 10µF, TA = +25°C, unless otherwise noted.
Output Voltage vs
Load Current
Efficiency vs
Load Current
Efficiency vs
Load Current
1.85
1.83
1.81
1.79
1.77
1.75
1.73
1.71
1.69
1.67
1.65
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
V
= 3.3V
IN
V
= 3.3V
IN
V
= 4.2V
IN
V
= 4.2V
IN
V
= 3.3V
IN
0
100 200 300 400 500 600 700 800 900
10
100
LOAD CURRENT (mA)
1000
10
100
LOAD CURRENT (mA)
1000
LOAD CURRENT (mA)
MP2104-TPC05
MP2104-TPC01
MP2104-TPC02
Efficiency vs
Load Current
Efficiency vs
Load Current
Output Voltage vs
Supply Voltage
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
1.810
1.808
1.806
1.804
1.802
1.800
V
V
= 1.8V
V
V
= 1.8V
OUT
= 3.3V
OUT
= 4.2V
IN
I
= 200mA
IN
LOAD
10
100
LOAD CURRENT (mA)
1000
10
100
LOAD CURRENT (mA)
1000
2
3
4
5
6
SUPPLY VOLTAGE (V)
MP2104-TPC03
MP2104-TPC04
MP2104-TPC06
Regulated FB Voltage vs
Temperature
PFET Current Limit vs
Temperature
Oscillator Frequency vs
Supply Voltage
0.620
0.615
0.610
0.605
0.600
0.595
0.590
0.585
0.580
1.3
1.2
1.1
1.0
0.9
0.8
0.7
2.05
1.95
1.85
1.75
1.65
1.55
1.45
1.35
1.25
-50 -30 -10 10 30 40 70 90 110130
-50 -30 -10 10 30 40 70 90 110130
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
TEMPERATURE (°C)
TEMPERATURE (°C)
SUPPLY VOLTAGE (V)
MP2104-TPC07
MP2104-TPC08
MP2104-TPC09
MP2104 Rev. 1.3
10/4/2005
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