DS8409 Datasheet, PDF (1/11 Pages) Richtek Technology Corporation – Green Mode Buck Converter

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RT8409
Green Mode Buck Converter
General Description
The RT8409 integrates a power MOSFET controller. It is
used for step down converters by well controlling the
internal MOSFET and regulating a constant output voltage.
The RT8409 features few system component counts and
simple system design. Especially, the RT8409 can use a
cheap simple drum core inductor in the system instead
of an EE core while maintaining the high efficiency.
The RT8409 is housed in a SOP-8 package. The
components of the whole system can be made very
compact.
Ordering Information
RT8409
Package Type
S : SOP-8
Lead Plating System
G : Green (Halogen Free and Pb Free)
Note :
Richtek products are :
 RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
 Suitable for use in SnPb or Pb-free soldering processes.
Marking Information
RT8409
GSYMDNN
RT8409GS : Product Number
YMDNN : Date Code
Features
 Built-In 600V Power MOSFET
 Programmable Constant Output Voltage
 Extremely Low Quiescent Current Consumption and
1μA Shutdown Current
 Low System BOM Cost for Economical Step Down
Converter Solution
 Universal Off-Line Input Voltage operation Range
 Built-In Over-Temperature Protection
 Built-In Over-Voltage Protection
 Output Open Protection
 Output Short Protection
 Output Over-Current Protection
 SOP-8 Package
Applications
 Home Appliance
 Standby Power
Pin Configuration
(TOP VIEW)
SGND
COMP ²
FB
3
SENSE 4
8
VCC
7
NC
6
DRAIN
5
DRAIN
SOP-8
Copyright ©2016 Richtek Technology Corporation. All rights reserved.
DS8409-00 September 2016
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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