LFC789D25CDG4 Description
The LFC789D25CDG4 is a dual linear FET controller that simplifies the design of dual power supplies. The LFC789D25CDG4 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.
LFC789D25CDG4 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
LFC789D25CDG4 Applications
Automotive
Infotainment & cluster
Communications equipment
Wired networking
Industrial
Factory automation & control
