RT9701B_11 Datasheet, PDF (1/11 Pages) Richtek Technology Corporation – 100mΩ Power Distribution Switches

RT9701B
100mΩ Power Distribution Switches
General Description
Features
The RT9701B is an integrated 100mΩ power 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 (23uA) 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
z 100mΩ Typ. 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 23uA Supply Current
z Wide Input Voltage Range : 3.5V to 6V
z UL Approved - #E219878
z RoHS Compliant and 100% Lead (Pb)-Free
USB power requirement, and thermal shutdown to protect
damage under over current conditions.
Applications
z Battery-Powered Equipment
Ordering Information
RT9701B
z Motherboard USB Power Switch
z USB Device Power Switch
z Hot-Plug Power Supplies
Package Type
z Battery-Charger Circuits
B : SOT-23-5
BL : SOT-23-5 (L-Type)
Pin Configurations
Lead Plating System
P : Pb Free
(TOP VIEW)
G : Green (Halogen Free and Pb Free)
VOUT
EN
Note :
Richtek products are :
5
4
` RoHS compliant and compatible with the current require-
2
3
ments of IPC/JEDEC J-STD-020.
` Suitable for use in SnPb or Pb-free soldering processes.
VOUT GND VIN
SOT-23-5
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
VOUT
VIN
5
4
2
3
VOUT GND VIN
SOT-23-5 (L-Type)
DS9701B-06 April 2011
www.richtek.com
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