OR Controllers, Ideal Diodes

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Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Type	FET Type	Ratio - Input:Output	Internal Switch(s)	Delay Time - OFF	Current - Output (Max)	Current - Supply	Voltage - Supply	Applications	Operating Temperature	Grade	Mounting Type	Package / Case	Supplier Device Package

TPS2121RUXR PWR MGMT BATTERY MGMT Texas Instruments	15,401 In Stock	1 : ¥18.96000 Cut Tape (CT) 3,000 : ¥8.66422 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Source Selector Switch	N-Channel	2:1	-	-	4.5A	-	2.8V ~ 22V	General Purpose	-40°C ~ 125°C (TJ)	-	Surface Mount	12-VFQFN	12-VQFN-HR (2x2.5)
LTC4357MPMS8#PBF IC OR CTRLR N+1 8MSOP Analog Devices Inc.	2,402 In Stock	1 : ¥109.67000 Tube	-	Tube	Active	N+1 ORing Controller	N-Channel	N:1	No	300 ns	-	500 µA	9V ~ 80V	Redundant Power Supplies, Telecom Infrastructure	-55°C ~ 125°C	Automotive	Surface Mount	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-MSOP

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OR Controllers, Ideal Diodes

Ideal diode controllers, also called OR'ing controllers, are devices designed to control an external pass transistor (usually a FET) in a manner that allows current flow in only one direction, similar to a rectifier diode but with significantly lower conduction loss. Among other applications, they are commonly used for providing reverse-flow protection in power supplies designed to be connected in parallel for sake of redundancy or increased output current capability.