Datasheet

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0
100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
0 200 400 600 800 1000 1200 1300
LEDCurrentDigitalCode-mA
LEDCurrent-mA
T =85°C
A
T =-40°C
A
T =25°C
A
I =2000mA
LIM
0
10
20
30
40
50
60
70
80
90
100
0 1 10 100 1000 10000
I -OutputCurrent-mA
O
Efficiency-%
V =5V,
I =2000mA
OUT
LIM
V =4.2V
IN
V =3V
IN
V =2.5V
IN
V =3.6V
IN
4.85
4.90
4.95
5
5.05
5.10
5.15
0.1 1 10 100 1000 10000
I -OutputCurrent-mA
O
DCOutputVoltage-V
V =5V,
I =2000mA
OUT
LIM
V =3.6V
IN
V =2.5V
IN
V =4.2V
IN
V =3V
IN
4.80
4.90
5
5.10
5.20
5.30
5.40
5.50
5.60
2.5
2.9 3.3 3.7 4.1
4.5
4.9
5.3 5.5
V -InputVoltage-V
I
DCOutputV
oltage-V
I =0mA
OUT
I =100mA
OUT
I =1000mA
OUT
V =5V,
I =2000mA
OUT
LIM
TPS61050
TPS61052
SLUS525 – MARCH 2007
LED CURRENT VOLTAGE MODE EFFICIENCY
vs vs
LED CURRENT DIGITAL CODE LOAD CURRENT
Figure 10. Figure 11.
DC OUTPUT VOLTAGE DC OUTPUT VOLTAGE
vs vs
OUTPUT CURRENT INPUT VOLTAGE
Figure 12. Figure 13.
11
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