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FPF2300/02/03 — Dual-Output Current Limit Switch
June 2009
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
FPF2300/02/03 • Rev. 1.1.3
FPF2300/02/03
Dual-Output Current Limit Switch
Features
! 1.8 to 5.5V Input Voltage Range
! Typical R
ON
= 75mΩ at IN = 5.5V
! 1.3A Current Limit (Typical)
! Slew Rate Controlled
! Reversed Current Blocking when Disabled
! ESD Protected, Above 4000V HBM
! Independent Thermal Shutdown
! UVLO
! RoHS Compliant
Applications
! Notebook Computing
! Peripheral USB Ports
! Networking / USB Based Equiptment
Description
The FPF2300/02/03 are dual-channel load switches of
IntelliMAX™ family. The FPF2300/02/03 consist of dual,
independent, current-limited, slew rate controlled, P-
channel MOSFET power switches. Slew rated turn-on
prevents inrush current from glitching supply rails. The
input voltage range operates from 1.8V to 5.5V to fulfill
today's USB device supply requirements. Switch control
is accomplished by a logic input (ON) capable of
interfacing directly with low-voltage control signal.
For the FPF2302, if the constant current condition per-
sists after 10ms, these parts shut down the switch and
pull the fault signal pin (FLAGB) LOW. The FPF2300 has
an auto-restart feature that turns the switch on again
after 504ms if the ON pin is still active. For the FPF2303,
a current limit condition immediately pulls the fault signal
pin LOW and the part remains in the constant-current
mode until the switch current falls below the current limit.
For the FPF2300 through FPF2303, the current limit is
typically 1.3A for each switch to align with notebook
computing applications. FPF2300/02/03 is available in
both SO8 and MLP 3X3mm 8-lead packages.
Figure 1. 8-Lead SOP Figure 2. 8-Lead MLP (3x3mm)
Ordering Information
For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
Part Number
Minimum
Current
Limit
Current Limit
Blanking Time
Eco
Status
Auto
Restart
ON Pin
Activity
Mode Package
FPF2300MX 1100mA 10ms RoHS 504ms Active LOW Restart 8-Lead SO8
FPF2302MX 1100mA 10ms RoHS N/A Active LOW Latch Off 8-Lead SO8
FPF2303MX 1100mA 0ms RoHS N/A Active LOW
Constant
Current
8-Lead SO8
FPF2300MPX 1100mA 10ms Green 504 Active LOW Restart
8-Lead Molded Lead-
less Package (MLP)
FPF2302MPX 1100mA 10ms Green N/A Active LOW Latch Off
8-Lead Molded Lead-
less Package (MLP)
FPF2303MPX 1100mA 0ms Green N/A Active LOW
Constant
Current
8-Lead Molded Lead-
less Package (MLP)