RT2862A
Typical Operating Characteristics
Efficiency vs. Output Current
100
90
0.810
0.808
Reference Voltage vs. Input Voltage
Reference Voltage (V)
80
Efficiency (%)
70
60
50
40
30
20
10
0
0
0.5
1
V
IN
=
V
IN
=
V
IN
=
V
IN
=
V
IN
=
5V
12V
24V
30V
36V
0.805
0.803
0.800
0.798
0.795
0.793
V
OUT
= 3.3V, R
T
= 113k
0.790
V
IN
= 4.5V to 36V, I
OUT
= 0A, R
T
= 113k
3
4
8
12
16
20
24
28
32
36
1.5
2
2.5
Output Current (A)
Input Voltage (V)
Reference vs. Temperature
0.810
Output Voltage vs. Output Current
3.50
3.45
Reference Voltage (V)
Output Voltage (V)
0.805
3.40
3.35
3.30
3.25
3.20
3.15
V
IN
=
V
IN
=
V
IN
=
V
IN
=
V
IN
=
5V
12V
24V
30V
36V
0.800
0.795
V
IN
=
V
IN
=
V
IN
=
V
IN
=
4.5V
12V
24V
36V
V
OUT
= 3.3V, I
OUT
= 0A, R
T
= 113k
0.790
-50
-25
0
25
50
75
100
125
V
OUT
= 3.3V, R
T
= 113k
3.10
0
0.5
1
1.5
2
2.5
3
Temperature (°C)
Output Current (A)
Switching Frequency vs. Input Voltage
520
600
Switching Frequency vs. Temperature
Switching Frequency (kHz)
1
580
560
540
520
500
480
460
440
420
400
-50
-25
0
Switching Frequency (kHz)
1
515
510
505
500
495
490
485
V
IN
=
V
IN
=
V
IN
=
V
IN
=
4.5V
12V
24V
36V
V
OUT
= 3.3V, I
OUT
= 0A, R
T
= 113k
480
4
8
12
16
20
24
28
32
36
V
OUT
= 3.3V, I
OUT
= 0A, R
T
= 113k
25
50
75
100
125
Input Voltage (V)
Temperature (°C)
Copyright
©
2018 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS2862A-02 January 2018
www.richtek.com
7
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
