RT8015
Typical Operating Characteristics
Efficiency vs. Output Current
100
90
80
1.810
1.808
1.806
Output Voltage vs. Output Current
V
IN
= 3.3V
Efficiency (%)
70
60
50
40
30
20
10
0
0
250
V
IN
= 5V, V
OUT
= 1.8V
V
IN
= 3.3V, V
OUT
= 1.8V
Output Voltage (V)
1.804
1.802
1.800
1.798
1.796
1.794
1.792
1.790
500
750
1000 1250 1500 1750 2000
0
250
500
750
1000 1250 1500 1750 2000
Output Current (mA)
Output Current (mA)
Frequency vs. Temperature
1100
4.0
Peak Current Limited vs. Input Voltage
V
OUT
= 2.5V
V
IN
= 3.3V, V
OUT
= 1.8V
I
OUT
= 0A
1080
Peak Current Limited (A)
Frequency (kHz)
3.5
1060
3.0
1040
2.5
1020
1000
-50
-25
0
25
50
75
100
125
2.0
3
3.25 3.5 3.75
4
4.25 4.5 4.75
5
5.25 5.5
Temperature
(°C)
Input Voltage (V)
Quiescent Current vs. Input Voltage
550
500
Quiescent Current vs. Temperature
V
IN
= 3.3V
Quiescent Current (uA)
510
Quiescent Current (uA)
3
3.25 3.5 3.75
4
4.25 4.5 4.75
5
5.25 5.5
530
480
460
490
440
470
420
450
400
-50
-25
0
25
50
75
100
125
Input Voltage (V)
Temperature
(°C)
DS8015-03 March 2011
www.richtek.com
7
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
