LFC789D25CPWR Description

The LFC789D25CPWR is a dual linear FET controller that simplifies the design of dual power supplies. The LFC789D25CPWR 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 the 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.

LFC789D25CPWR 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

LFC789D25CPWR Applications

Industrial 

Medical 

Enterprise systems 

Enterprise machine 

Personal electronics 

Tablets