RT6253A/B
Power Off from EN
Power On from VIN
V
OUT
(5V/Div)
V
OUT
V
(5V/Div)
EN
(2V/Div)
V
IN
(10V/Div)
V
SW
V
(10V/Div)
SW
(10V/Div)
V
I
= 12V, V
= 5V
OUT
IN
I
L
= 3A, L = 4.7H
OUT
(2A/Div)
I
V
I
= 12V, V
= 5V
OUT
L
IN
(2A/Div)
= 3A, L = 4.7H
OUT
Time (200s/Div)
Time (5ms/Div)
Power Off from VIN
Output Ripple as I
= 10mA
OUT
V
OUT
(5V/Div)
V
OUT
(50mV/Div)
V
IN
(10V/Div)
V
V
SW
SW
(10V/Div)
(5V/Div)
I
V
I
= 12V, V
= 5V
OUT
L
IN
(2A/Div)
= 3A, L = 4.7H
V
= 12V, V
= 5V, I
= 10mA, L = 4.7H
OUT
OUT
IN
OUT
I
L
(2A/Div)
Time (5ms/Div)
Time (10s/Div)
Output Ripple as I
= 3A
Load Transient (No Load to Full Load)
OUT
V
OUT
(20mV/Div)
V
OUT
(100mV/Div)
V
= 12V, V
= 5V
OUT
IN
I
= 0A to 3A, L = 4.7H
OUT
V
SW
(5V/Div)
I
L
(2A/Div)
I
OUT
(1A/Div)
V
= 12V, V
= 5V, I
= 3A, L = 4.7H
OUT
IN
OUT
Time (1s/Div)
Time (400s/Div)
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is a registered trademark of Richtek Technology Corporation.
www.richtek.com
18
DS6253A/B-01 September 2019
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
