[Microsemi]

DESCRIPTION
The LX8385/8385A/8385B series ICs are positive regulators designed to provide 3A output current. Each regulator yields higher efficiency than currently available devices with all internal circuitry designed to operate down to a 1V input-to-output differential. In these products, the drop out voltage is fully specified as a function of load current. The LX8385's dropout is guaranteed at a maximum of 1.5V at maximum output current, decreasing at lower load currents. The LX8385A/85B have a maximum dropout voltage of 1.3V.
The LX8385B offers a tighter voltage reference tolerance: ±1.0% over line, load and temperature, with 0.8% initial accuracy. The LX8385/85A have 1.0% initial accuracy, with 2% over line, load and temperature.

KEY FEATURES
■ Three-Terminal Adjustable Or Fixed Output Voltage
■ Guaranteed 1% Voltage Reference Accuracy Over Line, Load And Temperature (LX8385B)
■ Guaranteed < 1.5V Headroom At 3A (LX8385)
■ Guaranteed < 1.3V Headroom At 3A (LX8385A/8385B)
■ Output Current Of 3A Minimum
   □ 0.015% Line Regulation
   □ 0.1% Load Regulation

APPLICATIONS  
■ High Efficiency Linear Regulators
■ Post Regulators For Switching Power Supplies
■ Battery Chargers
■ Constant Current Regulators
■ Graphics & Standard Supplies
■ Processor I/O Supply
■ Low Voltage Memory & Chipset Supplies