DS6550A Datasheet, PDF (9/16 Pages) Richtek Technology Corporation – Synchronous DC-DC Step-Down Controller with 5V LDO

RT6550A
VEN
(5V/Div)
VOUT
(5V/Div)
Power On from EN
VEN
(5V/Div)
VOUT
(5V/Div)
Power Off from EN
VLDO5
(5V/Div)
VOUT
(100mV/Div)
UGATE
(20V/Div)
LGATE
(5V/Div)
IOUT
(5A/Div)
VIN = 12V, VEN = 5V, No Load
Time (400μs/Div)
Load Transient Response
VEN = 1/4 VIN, VIN = 12V, IOUT = 0A to 6A
Time (40μs/Div)
VLDO5
(5V/Div)
VOUT
(2V/Div)
UGATE
(20V/Div)
LGATE
(5V/Div)
IOUT
(5A/Div)
VOUT
(2V/Div)
UGATE
(20V/Div)
LGATE
(5V/Div)
UVP
VEN = 1/4 VIN,
VIN = 12V,
No Load
IOUT
VOUT
Time (400μs/Div)
VIN = 12V, VEN = 5V, No Load
Time (2ms/Div)
OVP
VEN = 1/4 VIN,
VIN = 12V,
No Load
Time (40μs/Div)
Copyright ©2016 Richtek Technology Corporation. All rights reserved.
DS6550A-00 September 2016
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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