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Fairchild Semiconductor Electronic Components Datasheet

FPF2202 Datasheet

Integrated Load Switch

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June 2008
FPF2200-FPF2202
Integrated Load Switch with 500mA High Precision Current Limit
Features
1.8 to 5.5V Input Voltage Range
Typical RDS(ON) = 140m @ VIN = 5.5V
Typical RDS(ON) = 160m @ VIN = 3.3V
Fixed 500mA Current Limit (min)
5% Accurate Current Limit
72 (typ) Output Discharge Resistance
ESD Protected, above 8kV HBM and 2kV CDM
Applications
PDAs
Cell Phones
GPS Devices
MP3 Players
Digital Cameras
Peripheral Ports
Notebook Computer
General Description
The FPF2200-FPF2202 are low RDS(ON) P-Channel MOSFET
load switches with high precision current limit value. The input
voltage range operates from 1.8V to 5.5V to fulfill today's Ultra
Portable Device's supply requirement. Switch control is by a
logic input (ON) capable of interfacing directly with low voltage
control signal. On-chip pull-down is available for output quick
discharge when switch is turned off.
For the FPF2201, if the constant current condition still persists
after 30ms, these parts will shut off the switch and pull the fault
signal pin (FLAGB) low. The FPF2200 has an auto-restart
feature which will turn the switch on again after 450ms if the ON
pin is still active. The FPF2201 do not have this auto-restart
feature so the switch will remain off until the ON pin is cycled.
For the FPF2202, a current limit condition will immediately pull
the fault signal pin low and the part will remain in the constant-
current mode until the switch current falls below the current
limit. For the FPF2200 through FPF2202, the minimum current
limit is 500mA with 5% accuracy.
BOTTOM
Pin 1
TOP
Ordering Information
Part
FPF2200
FPF2201
FPF2202
Current Limit
(mA)
500
500
500
Current Limit
Blanking Time
(mS)
30
30
NA
Auto-Restart Time
(mS)
450
NA
NA
ON Pin
Activity
Active HI
Active HI
Active HI
©2008 Fairchild Semiconductor Corporation
FPF2200-FPF2202 Rev. B
1
www.fairchildsemi.com


Fairchild Semiconductor Electronic Components Datasheet

FPF2202 Datasheet

Integrated Load Switch

No Preview Available !

Typical Application Circuit
OFF ON
VIN VOUT
FPF2200/1/2
ON FLAGB
GND
TO LOAD
Functional Block Diagram
VIN
UVLO
THERMAL
SHUTDOWN
ON
CONTROL
LOGIC
CURRENT
LIMIT
Output Discharge
GND
VOUT
FLAGB
FPF2200-FPF2202 Rev. B
2
www.fairchildsemi.com


Part Number FPF2202
Description Integrated Load Switch
Maker Fairchild Semiconductor
Total Page 13 Pages
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