RT2702
Typical Operating Characteristics
Efficiency vs. Output Current
100
560
Switching Frequency vs. Output Current
Switching Frequency (kHz)
1
540
520
500
480
460
440
420
400
0.01
95
90
V
IN
= 4.5V
V
IN
= 12V
V
IN
= 19V
V
IN
= 5.5V
V
IN
= 4.5V
Efficiency (%)
85
80
75
70
65
60
55
50
0
V
IN
= 19V
V
IN
= 5.5V
V
IN
= 12V
V
EN
= V
IN
, V
OUT
= 1V, f
SW
= 500kHz, FCCM
5
10
15
20
25
V
EN
= V
IN
, V
OUT
= 1V, f
SW
= 500kHz, FCCM
0.1
1
10
100
Output Current (A)
Output Current (A)
Switching Frequency vs. Input Voltage
550
V
OUT
vs. I
LOAD
1.015
1.014
1.013
1.012
Switching Frequency (kHz)
1
540
530
520
V
IN
V
IN
V
IN
V
IN
=
=
=
=
4.5V
5.5V
12V
19V
500
490
480
470
460
450
4
6
8
10
12
V
OUT
(V)
V
EN
= 12V, V
OUT
= 1V,
I
OUT
= 20A,
f
SW
= 500kHz, FCCM
14
16
18
20
510
1.011
1.01
1.009
1.008
1.007
1.006
1.005
0
V
EN
= V
IN
, V
OUT
= 1V, f
SW
= 500kHz, FCCM
5
10
15
20
25
Input Voltage (V)
I
LOAD
(A)
V
DRV
vs. I
DRV
5.060
5.055
Quiescent Current vs. Input Voltage
1600
1500
V
EN
= V
IN
, V
MODE
= 5V, V
FB
= 0.6V
Quiescent Current (uA)
V
EN
= V
IN
= 12V
0
10
20
30
40
50
60
70
80
90
100
5.050
1400
1300
1200
1100
1000
900
800
700
4
6
8
10
12
14
16
18
20
V
DRV
(V)
5.045
5.040
5.035
5.030
5.025
5.020
I
DRV
(mA)
Copyright
©
2018 Richtek Technology Corporation. All rights reserved.
Input Voltage (V)
is a registered trademark of Richtek Technology Corporation.
DS2702-02 May 2019
www.richtek.com
9
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
