FPF2123

Supply Current (Max) :
Maximum Operating Temperature : + 85 C
Mounting Style : SMD/SMT
Number of Outputs : 1
On Time (Max) : 25 us
Operating Supply Voltage : 1.8 V to 5.5 V
Package / Case : SOT-23-5
On Resistance (Max) : 0.125 Ohms
Off Time (Max) : 70 us


Features:

·1.8 to 5.5V Input Voltage Range
·Controlled Turn-On
·0.15-1.5A Adjustable Current Limit
·Undervoltage Lockout
·Thermal Shutdown
·<2uA Shutdown Current
·Auto Restart
·Fast Current limit Response Time
·3us to Moderate Over Currents
·20ns to Hard Shorts
·Fault Blanking
·Reverse Current Blocking




Application

·PDAs
·Cell Phones
·GPS Devices
·MP3 Players
·Digital Cameras
·Peripheral Ports
·Hot Swap Supplies




Pinout






Specifications

Product	Product status	Eco Status	Pricing*	Package type	Leads	Packing method	Package Drawing	Package Marking Convention**
FPF2123	Full Production	RoHS Compliant	$0.75	SOT-23	5	TAPE REEL		Line 1: &E&E&Y (Binary Calendar Year Coding) Line 2: &O2123&C Line 3: &.&O&E&V

* Fairchild 1,000 piece Budgetary Pricing

** A sample button will appear if the part is available through Fairchild's on-line samples program. If there is no sample button, please contact a Fairchild distributor to obtain samples

Package marking information for product FPF2123 is available. Click here for more information .

Parameter		Min.	Max.	Unit
VIN, VOUT, ON, ISET to GND		-0.3	6	V
Power Dissipation @ TA = 25°C (note 1)			667	mW
Operating Temperature Range		-40	125	°C
Storage Temperature		-65	150	°C
Thermal Resistance, Junction to Ambient			150	°C/W
Electrostatic Discharge Protection	HBM	4000		V
	MM	400		V

Description

The FPF2123, FPF2124, and FPF2125 are a series of loadswitches which provides full protection to systems and loadswhich may encounter large current conditions. FPF2123, FPF2124, and FPF2125 contain a 0.125Ω current-limited P-channel MOSFET which canoperate over an input voltage range of 1.8-5.5V. The currentlimit is settable using an external resistor. Internally, current isprevented from flowing when the MOSFET is off and the outputvoltage is higher than the input voltage. Switch control is by alogic input (ON) capable of interfacing directly with low voltagecontrol signals. Each part of FPF2123, FPF2124, and FPF2125 contains thermal shutdown protectionwhich shuts off the switch to prevent damage to the part when acontinuous over-current condition causes excessive heating.

When the switch current reaches the current limit, the partsoperate in a constant-current mode to prohibit excessivecurrents from causing damage. For the FPF2123 and FPF2124if the constant current condition still persists after 10ms, theseparts will shut off the switch. The FPF2123 has an auto-restartfeature which will turn the switch on again after 160ms if the ONpin is still active. The FPF2124 does not have this auto-restartfeature so the switch will remain off after a current limit fault untilthe ON pin is cycled. The FPF2125 will not turn off after acurrent limit fault, but will rather remain in the constant currentmode indefinitely. The minimum current limit is 150mA.

FPF2123, FPF2124, and FPF2125 are available in a space-saving 5 pin SOT23package

Parameters:

Technical/Catalog Information	FPF2123
Vendor	Fairchild Semiconductor (VA)
Category	Integrated Circuits (ICs)
Type	High Side Switch
Number of Outputs	1
Voltage - Input	1.8 ~ 5.5 V
Package / Case	SOT-23-5
Packaging	Digi-Reel?
Current Limit	Adjustable
Internal Switch(s)	Yes
Operating Temperature	-40°C ~ 85°C
Rds (On)	160 mOhm
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	FPF2123 FPF2123 FPF2123DKR ND FPF2123DKRND FPF2123DKR