RT2856
Typical Operating Characteristics
Efficiency vs. Output Current
100
90
80
100
90
Efficiency vs. Output Current
Efficiency (%)
60
50
40
30
20
10
0
0
1
2
3
4
5
6
Efficiency (%)
70
V
IN
= 9V
V
IN
= 12V
V
IN
= 17V
80
70
60
50
40
30
20
V
OUT
= 5V
V
OUT
= 3.3V
V
OUT
= 1.2V
V
OUT
= 3.3V
10
0
0
1
2
3
4
V
IN
= 12V
5
6
Output Current (A)
Output Current (A)
Output Voltage vs. Output Current
3.33
3.32
3.37
3.35
Output Voltage vs. Input Voltage
Output Voltage (V)
3.31
3.30
3.29
3.28
3.27
Output Voltage (V)
3.33
3.31
3.29
3.27
3.25
I
OUT
= 0A
I
OUT
= 3A
I
OUT
= 6A
V
IN
= 12V, V
OUT
= 3.3V
3.26
0
1
2
3
4
5
6
3.23
4
6
8
10
12
14
V
OUT
= 3.3V
16
18
Output Current (A)
Input Voltage (V)
Reference Voltage vs. Temperature
0.95
700
Switching Frequency vs. Temperature
Switching Frequency (kHz)
1
650
600
550
500
450
400
Reference Voltage (V)
0.90
0.85
0.80
0.75
0.70
0.65
-50
-25
0
25
50
75
100
125
R
OSC
= 100kΩ
350
-50
-25
0
25
50
75
100
125
Temperature (°C)
Temperature (°C)
Copyright
©
2019 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
8
DS2856-12
June 2019
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
