Current Limited Load Switch in SOT-23 Package
◼ General Description
The OCP9200 SmartSwitch is a member of
Orient-chip's Application Specific Power MOSFET
product family. It is a Current Limited P-channel MOSFET
power switch designed for high-side load-switching
applications. This switch operates with inputs ranging from
2.7V to 5.5V, making it ideal for both 3V and 5V systems. An
integrated current-limiting circuit protects the input supply
against large currents which may cause the supply to fall out
of regulation. The OCP9200 is also protected from thermal
overload which limits power dissipation and junction
temperatures. It can be used to control loads that require up
to 1 A. Current limit threshold is programmed with a resistor
from SET to ground. The quiescent supply current is
typically a low 15μA max. In shutdown mode, the supply
current decreases to less than 1μA.
The OCP9200 is available in a 5 pin SOT-23 specified
over -40 to 85℃.
⚫ 2.7V to 5.5V Input voltage range
⚫ Programmable over current threshold
⚫ Fast transient response:
⚫ <1μs response to short circuit
⚫ Low quiescent current
• 15μA typical
• 1μA max with Switch off
⚫ 160mΩ typical RDS(ON)
⚫ Only 2.5V needed for ON/OFF Control
⚫ Undervoltage Lockout
⚫ Thermal shutdown
⚫ Temp range -40 to 85℃
⚫ 4kV ESD Rating
⚫ 5 pin SOT-23 package
◼ Pin Configuration
⚫ Peripheral ports
⚫ Notebook computers
⚫ Personal communication devices
⚫ Hot swap supplies
P-channel MOSFET drain. Connect 0.47μF capacitor
from OUT to GND.
Current-Limit Set Input. A resistor from SET to ground
sets the current limit for the switch.
Enable Input. Two versions are available, active-high and
active-low.See ordering information for details.
P-channel MOSFET source. Connect 1μF capacitor from
IN to GND.
Rev.1.3 Feb .27, 2018