Texas Instruments LFC789D25CPWRE4

LFC789D25CPWRE4              Description
The LFC789D25 is a dual linear FET controller that simplifies the design of dual power supplies. The device consists of two independent controllers, each of which drives an external MOSFET to implement a low-dropout regulator. One controller is programmed to regulate a fixed 2.5-V output, while the second controller can be programmed to regulate any desired output voltage via a reference input pin, allowing for the creation of a tracking regulator often needed for termination schemes. And, because heating effects of the external FETs easily can be isolated from the controllers, the controllers can regulate the output voltages to a maximum tolerance of ±2% across temperature and load.  
LFC789D25CPWRE4               Features
 Two Independent Controllers for Regulation of: ? Fixed 2.5-V and an Adjustable Output ? ±2% (Max) Regulation Across Temperature and Load (1 mA to 3 A)  Adjustable Output Can Be Set Via an External Reference Pin, Allowing for the Creation of a Tracking Regulator  Great Design Flexibility With Minimal External Components  Applications: High-Current, Low-Dropout Regulators for: ? DDR/RDRAM Memory Termination ? Motherboards ? Chipset I/O ? GTLP Termination  
LFC789D25CPWRE4                 Applications
? Automotive chargers, Converters, High Voltage Auxiliaries ? Inverters, PFC, UPS