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CS9729 Datasheet دیتاشیت PDF دانلود

دیتاشیت - Richtek - Power Distribution Switches

شماره قطعه CS9729
شرح مفصل Power Distribution Switches
تولید کننده Richtek 
آرم Richtek 


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CS9729 شرح
CS9729
100mPower Distribution Switches
General Description
The CS9729 is an integrated 100mpower switch for
self-powered and bus-powered Universal Series Bus (USB)
applications. A built-in charge pump is used to drive the
N-MOSFET that is free of parasitic body diode to eliminate
any reversed current flow across the switch when it is
powered off. Its low quiescent current (23µA) and small
package (SOT-23-5) is particularly suitable in battery-
powered portable equipment.
Several protection functions include soft start to limit inrush
current during plug-in, current limiting at 1.5A to meet
USB power requirement, and thermal shutdown to protect
damage under over current conditions.
Ordering Information
CS9729
Package Type
B : SOT-23-5
Operating Temperature Range
G : Green (Halogen Free with Commer-
cial Standard)
Note :
Richtek Green 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
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area, otherwise visit our website for detail.
Features
z 100mTyp. High-Side N-MOSFET
z Guaranteed 1.1A Continuous Current
z 1.5A Current Limit
z Small SOT-23-5 Package Minimizes Board Space
z Soft Start
z Thermal Protection
z Low 23µA Supply Current
z Wide Input Voltage Range : 2.2V to 6V
z UL Approved - #E219878
z RoHS Compliant and Halogen Free
Applications
z Battery-Powered Equipment
z Motherboard USB Power Switch
z USB Device Power Switch
z Hot-Plug Power Supplies
z Battery-Charger Circuits
Pin Configurations
(TOP VIEW)
VOUT
5
EN
4
23
VOUT GND VIN
SOT-23-5
Typical Application Circuit
VIN
CIN
1µF
CS9729
VIN VOUT
VIN VOUT
GND
VOUT
* COUT
470µF
* 470uF, Low ESR Electrolytic
CS9729-00T00 September 2009
www.richtek.com
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