EUP2539
Typical Operating Characteristic
Quiescent Current vs. VIN
Quiescent Current vs. VIN
(Switching)
(Not Switching)
150
2
1.5
1
125
100
75
0.5
0
50
3
3.5
4
4.5
5
5.5
3
3.5
4
5
5.5
Input Volta4g.e5 (V)
Input Voltage (V)
FB PIN Voltage vs. Temperature
FB PIN Voltage vs. Output Current
306
304
302
300
298
296
310
305
300
295
290
-50
0
50
100
150
5
10
30
Outp1u5t Curre2n0t (mA)25
Temperature ( )
℃
Switching Frequency vs. Supply Voltage
LED Current vs. Input Voltage
1.1
40
35
30
25
20
15
10
5
1
0.9
0.8
RFB=10Ω
RFB=15Ω
RFB=20Ω
0
3
3.5
4
4.5
5
5.5
3
3.5
4
4.5
5
5.5
Input Voltage (V)
Input Voltage (V)
DS2539 Ver1.1 Apr. 2009
5