UM3510 Datasheet, PDF (6/10 Pages) Union Semiconductor, Inc. – 1.0A, 1.5MHz, Synchronous Step-Down DC-DC Converter

UM3510
Typical Performance Characteristics
(V_IN = 3.6V, V_OUT = 1.8V, T_A = +25°C, unless otherwise noted.)
100
90
80
70
60
50
40
30
20
10
0
0.1
Efficiency VS Load Current
VOUT=1.2V
VIN=2.7V
VIN=3.6V
VIN=4.2V
1
10
100
Load Current(mA)
1000
Efficiency VS Load Current
100
90 _VOUT=1.8V
80
70
60
50
40
30
VIN=2.7V
20
VIN=3.6V
10
VIN=4.2V
0
0.1
1
10
100
1000
Load Current(mA)
Efficiency VS Load Current
100
90 ^VOUT=2.5V
80
70
60
50
40
30
VIN=2.7V
20
VIN=3.6V
VIN=4.2V
10
0
0.1
1
10
100
1000
Load Current(mA)
Output Voltage vs Load Current
2.2
2.1 ^VIN=3.6V
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
0
200 400 600 800 1000 1200
Load Current(mA)
Efficiency VS Supply Voltage
100
95
IO=100mA
90
85
80
IO=600mA
75
70
IO=10mA
65
60
55
50
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
Supply Voltage(V)
Output Voltage vs Supply Voltage
1.820
1.815
1.810
1.805
I =600mA
O
1.800
1.795
I =100mA
O
1.790
1.785
I =10mA
O
1.780
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
Supply Voltage(V)
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http://www.union-ic.com Rev.02 Dec.2011
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