EUP2539 Datasheet, PDF (5/11 Pages) Eutech Microelectronics Inc – 10 White LED Boost Converter In Thin TSOT-23 Package

Typical Operating Characteristic
Quiescent Current vs. VIN
(Not Switching)
150
EUP2539
Quiescent Current vs. VIN
(Switching)
2
125
1.5
100
1
75
0.5
50
3
3.5
4
4.5
5
5.5
Input Voltage (V)
FB PIN Voltage vs. Temperature
306
304
302
300
298
296
-50
0
50
100
150
Temperature ( )
Switching Frequency vs. Supply Voltage
1.1
1
0.9
0.8
3
3.5
4
4.5
5
5.5
Input Voltage (V)
DS2539 Ver1.1 Apr. 2009
5
0
3
3.5
4
4.5
5
5.5
Input Voltage (V)
FB PIN Voltage vs. Output Current
310
305
300
295
290
5
10
15
20
25
30
Output Current (mA)
LED Current vs. Input Voltage
40
35
30
25
20
15
10
5
0
3
RFB=10Ω
RFB=15Ω
RFB=20Ω
3.5
4
4.5
5
5.5
Input Voltage (V)