RT6222A/B
Switching Frequency vs. Temperature
600
LS Switch Valley Current Limit vs. Temperature
LS Switch Valley Current Limit (A)1
4.0
3.9
3.8
3.7
3.6
3.5
3.4
3.3
3.2
3.1
3.0
-50
-25
0
25
50
75
100
125
Switching Frequency (kHz)
1
575
550
525
500
475
450
-50
-25
0
V
IN
= 12V, V
OUT
= 1V, I
OUT
= 1A
25
50
75
100
125
Temperature (°C)
Temperature (°C)
Load Transient Response
V
IN
= 12V, V
OUT
= 1V, I
OUT
= 0A to 2.5A
Load Transient Response
V
IN
= 12V, V
OUT
= 1V, I
OUT
= 1.25A to 2.5A
V
OUT
(50mV/Div)
V
OUT
(20mV/Div)
V
SW
(5V/Div)
I
OUT
(2A/Div)
Time (100μs/Div)
V
SW
(5V/Div)
I
OUT
(2A/Div)
Time (100μs/Div)
Output Ripple Voltage
V
IN
= 12V, V
OUT
= 1V, I
OUT
= 1A
Output Ripple Voltage
V
IN
= 12V, V
OUT
= 1V, I
OUT
= 2.5A
V
OUT
(20mV/Div)
V
OUT
(20mV/Div)
V
SW
(5V/Div)
Time (2μs/Div)
V
SW
(5V/Div)
Time (2μs/Div)
Copyright
©
2018 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
8
DS6222A/B-01 August 2018
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
