RT7238B/C/D/E
Start-Up through EN2
Start-Up through EN1
RT7238B
RT7238B
VOUT
(2V/Div)
VOUT
(2V/Div)
IL
IL
(2A/Div)
(2A/Div)
VLDO
(2V/Div)
PGOOD
(2V/Div)
EN2
(9V/Div)
EN1
(9V/Div)
VIN = 12V, EN1 = 2V, No Load
VIN = 12V, EN2 = 2V, No Load
Time (500μs/Div)
Time (500μs/Div)
Start-Up through EN
Start-Up through EN
RT7238C
RT7238D
VOUT
(400mV/Div)
VOUT
(2V/Div)
IL
IL
(2A/Div)
(2A/Div)
EN
(9V/Div)
EN
(9V/Div)
PGOOD
(5V/Div)
PGOOD
(3V/Div)
VIN = 12V, No Load
VIN = 12V, No Load
Time (500μs/Div)
Time (500μs/Div)
Power-Off through EN1
Power-Off through EN2
RT7238B
RT7238B
VOUT
(2V/Div)
VOUT
(2V/Div)
IL
IL
(2A/Div)
(2A/Div)
PGOOD
(2V/Div)
VLDO
(2V/Div)
EN1
(9V/Div)
EN2
(9V/Div)
VIN = 12V, EN2 = 2V, No Load
VIN = 12V, EN1 = 2V, No Load
Time (5ms/Div)
Time (10ms/Div)
Copyright 2015 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
DS7238B/C/D/E-02 November 2015
www.richtek.com
13
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
