Overview
The LT1085CK is a positive adjustable low dropout linear voltage regulator designed to provide output current of 3A with higher efficiency than currently available devices. The input voltage range is from 2.55V to 30V and available in adjustable output voltage versions. This regulator excels in applications requiring stable, precise power regulation with minimal voltage drop across the pass element.
Key Features
- 3A output current capability for powering moderate-load circuits
- Wide input voltage range: 2.55V to 30V
- Maximum voltage drop of 1.3V at 3A load current
- Adjustable output voltage using two external resistors
- Integrated protection: overcurrent, reverse polarity, over-temperature, and transient voltage spike protection
- Available in 3-Lead Plastic TO-220 package
Technical Specifications
The LT1085CK is engineered for precision power applications where dropout voltage and load regulation are critical. Key electrical characteristics include adjustable output voltage, integrated current limiting, and thermal shutdown circuitry. The LT1083/LT1084/LT1085 devices are pin compatible with older 3-terminal regulators, enabling straightforward substitution in legacy designs.
Typical Applications
- Industrial control systems requiring stable regulated power
- Power supply modules and converter designs
- Instrumentation and test equipment
- Audio and telecommunications equipment
- General-purpose power distribution circuits requiring low dropout
Compatibility & Replacements
Compatible With
- Standard 3-terminal regulator circuits and applications
- Adjustable output voltage designs using external resistor networks
- Industrial control and monitoring systems
- Embedded systems requiring 3A continuous output
Replaces / Drop-In Replacement For
- LT1084 (5A variant of same family)
- LT1083 (7.5A variant of same family)
- LM1085 (Texas Instruments equivalent)
Works With
- Analog Devices / Linear Technology design tools and reference designs
- Standard BJT-based regulator topologies
- Adjustable output designs with resistor divider networks
- Industrial power distribution and management systems
