Spec. No. : C540F3
CYStech Electronics Corp. Issued Date : 2007.07.04
Revised Date :
Page No. : 1/5
3A Low Dropout Positive Voltage Regulator
Dropout Voltage 1.4V at 3A Output Current.
Fast Transient Response.
Extremely Tight Line and Load Regulation.
Built-in Thermal Shutdown Protection.
Adjustable Output Voltage or Fixed 1.5V, 1.8V, 2.5V, 3.3V, 5.0V.
Output Current Limiting.
The PL1085-XXXF3 is a low dropout three terminal regulator with 3A output current capability. The output voltage is
adjustable with the use of a resistor divider or fixed 1.5V, 1.8V, 2.5V, 3.3V and 5.0V. Dropout voltage is guaranteed to be at
maximum of 1.4V with the maximum output current. Its low dropout voltage and fast transient response make it ideal for
low voltage microprocessor applications. Current limit and thermal protection provide protection against any overload
condition that would create excessive junction temperatures.
Mother Board I/O Power Supplies.
Microprocessor Power Supplies.
High Current Regulator.
Post Regulator for Switching Supply.
Typical Application Circuit
(1)C1 needed if device is far
away from filter capacitors.
(2)C2 required for stability.
Adjustable Voltage Regulator
Fixed Voltage Regulator
CYStek Product Specification