RT6543A/B
VID Change
VID Change
VOUT
offset 1.1V
(300mV/Div)
VOUT
offset 1.1V
(300mV/Div)
PH
(20V/Div)
PH
(20V/Div)
VID0
(5V/Div)
VID0
(5V/Div)
VIN = 12V, VCC = 5V
VOUT = 1.65V to 1.1V, IOUT = 5A
VID1
(5V/Div)
VID1
(5V/Div)
VIN = 12V, VCC = 5V
VOUT = 1.1V to 1.65V, IOUT = 5A
Time (10μs/Div)
Time (10μs/Div)
Load Transient Response
Load Transient Response
VOUT
VOUT
offset 1.65V
offset 1.8V
(50mV/Div)
(50mV/Div)
PH
(10V/Div)
PH
(10V/Div)
IOUT
offset 12A
(12A/Div)
IOUT
offset 12A
(12A/Div)
VIN = 12V, VOUT = 1.65V
VIN = 12V, VOUT = 1.8V
VCC = 5V, Load = 7.2A to 24A
Slew rate = 16.8A/μs
VCC = 5V, Load = 12.8A to 32A
Slew rate = 19.2A/μs
Time (10μs/Div)
Time (10μs/Div)
Over-Voltage Protection
Over-Voltage Protection
VOUT
(600mV/Div)
VOUT
(600mV/Div)
PH
(3V/Div)
PH
(3V/Div)
PGOOD
(5V/Div)
PGOOD
(5V/Div)
VIN = 12V, VCC = 5V, VOUT = 1.8V, OVP = 2.2V
VIN = 12V, VCC = 5V, VOUT = 1.65V, OVP = 2.2V
Time (20μs/Div)
Time (20μs/Div)
Copyright 2020 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
DS6543A/B-01 March 2020
www.richtek.com
11
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
