General Description

The APL1085 is a low dropout three-terminal adjustable regulator with 3A output current capability. In order to obtain lower dropout voltage and faster transient response which is critical for low voltage applications, the APL1085 has been optimized. The output available voltage range of adjustable version is from 1.25 to 5.75V with an input supply below 7V, and the fixed 3.3V output voltage device is also available.

Current limit is trimmed to ensure specified output current and controlled short-circuit current. On-chip thermal limiting provides protection against any combination of overload that would create excessive junction temperatures.

The APL1085 is available in both the through-hole and surface mount versions of the industry standard 3-pin TO-220,TO-252, and TO-263 power packages.

Features

● Fast Transient Response

● Guaranteed Dropout Voltage at Multiple Currents

● Load Regulation : 0.05 Typ.

● Line Regulation : 0.03 Typ.

● Low Dropout Voltage : 1.2V Typ. at IOUT =3A

● Trimmed Current Limit : 3A Typ. at TJ=125°C

● On-Chip Thermal Limiting : 150°C Typ.

● Standard 3-Pin TO-220, TO-252, and TO-263 Power Package

● Lead Free and Green Devices Available (RoHS Compliant)

Applications

● Pentium™ Processor Supplies

● Power PC™ Supplies

● Low Voltage Logic Supplies

● Battery-Powered Circuitry

● Post Regulator for Switching Power Supply