RT5035A/B
Typical Operating Characteristics
CH2 Buck-Boost Efficiency vs. Output Current
100
CH1 Boost Efficiency vs. Output Current
100
90
80
90
80
V
V
V
V
V
V
= 1.8V
= 2.4V
= 3V
IN
IN
IN
IN
IN
IN
V
V
V
V
V
V
= 1.8V
= 2.4V
= 3V
IN
IN
IN
IN
IN
IN
70
60
50
40
30
20
10
0
70
60
50
40
30
20
10
0
= 3.6V
= 4.2V
= 5V
= 3.6V
= 4.2V
= 4.5V
V
= 3.25V, L = 2.2μH, C
= 10μF x 2
OUT
OUT
V
= 5V, L = 2.2μH, C
= 10μF x 2
OUT
OUT
10
100
1000
10
100
1000
10000
Output Current (mA)
Output Current (mA)
CH3 Buck Efficiency vs. Output Current
CH4 Buck Efficiency vs. Output Current
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
V
V
V
V
V
V
= 2.1V
= 2.4V
= 3V
IN
IN
IN
IN
IN
IN
V
V
V
V
V
V
= 1.8V
= 2.4V
= 3V
IN
IN
IN
IN
IN
IN
= 3.6V
= 4.2V
= 5V
= 3.6V
= 4.2V
= 5V
V
= 1.16V, L = 1.2μH, C
= 44μF
OUT
V
= 1.8V, L = 2.2μH, C
= 10μF
OUT
OUT
OUT
10
100
1000
10000
10
100
1000
Output Current (mA)
Output Current (mA)
CH5 Buck Efficiency vs. Output Current
CH7 Efficiency vs. Input Voltage
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
V
V
V
V
V
V
= 1.8V
= 2.4V
= 3V
IN
IN
IN
IN
IN
IN
= 3.6V
= 4.2V
= 5V
Load = 6WLEDs/30mA, L = 10μH, C
= 1μF
V
= 1.23V, L = 2.2μH, C
= 10μF
OUT
OUT
OUT
1.8 2.1 2.4 2.7
3
3.3 3.6 3.9 4.2 4.5 4.8 5.1 5.4 5.7
Input Voltage (V)
10
100
1000
Output Current (mA)
Copyright © 2020 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
16
DS5035A/B-03 February 2020
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
