RT6219
Power Off Through EN
Load Transient Response
V
IN
= 12V, EN = High, V
OUT
= 1V, C
OUT
= 4 x 22μF,
L = 1.2μH, I
OUT
= 0.4A to 4A @ 2.5A/μs
V
OUT
(1V/Div)
EN
(5V/Div)
PGOOD
(5V/Div)
V
CC
(5V/Div)
V
OUT
(20mV/Div)
SW
(20V/Div)
I
L
(5A/Div)
Time (50μs/Div)
No Load, V
IN
= 12V
Time (500μs/Div)
Load Transient Response
V
IN
= 12V, EN = High, V
OUT
= 3.3V, C
OUT
= 3 x 22μF,
L = 2.2μH, I
OUT
= 0.4A to 4A @ 2.5A/μs
Load Transient Response
V
IN
= 12V, EN = High, V
OUT
= 5V, C
OUT
= 3 x 22μF,
L = 2.2μH, I
OUT
= 0.4A to 4A @ 2.5A/μs
V
OUT
(100mV/Div)
V
OUT
(200mV/Div)
SW
(20V/Div)
I
L
(5A/Div)
Time (50μs/Div)
SW
(20V/Div)
I
L
(5A/Div)
Time (50μs/Div)
UVP
OVP
V
OUT
(1V/Div)
PGOOD
(5V/Div)
V
OUT
(1V/Div)
PGOOD
(5V/Div)
V
IN
(10V/Div)
SW
(10V/Div)
V
IN
= 12V, EN = High
I
L
(5A/Div)
V
IN
= 12V, V
OUT
= 1.25V, EN = High
Time (50μs/Div)
Time (50μs/Div)
Copyright
©
2018 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS6219-06 January 2018
www.richtek.com
9
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
