LM1085IT-ADJ 3A Adjustable Low Dropout Positive Voltage Regulator TO-220-3 (LM1085IT-ADJ TO220-3)
The LM1085IT-ADJ is a high-performance low dropout (LDO) positive voltage regulator designed to provide an adjustable output voltage with a current capability of up to 3A. By using an external resistor divider, the output voltage can be set anywhere from 1.25V to 15V. This IC is engineered to maintain a stable output even when the input-to-output voltage differential is low, featuring a maximum dropout of 1.5V at full load current. It belongs to a family of regulators that utilize a floating architecture for superior load and line regulation.
This IC is primarily used in adjustable high-efficiency linear regulators, battery chargers, and microprocessor power supplies. It is a versatile component for Arduino electronics projects in India that require a custom voltage rail for specialized sensors or modules where standard 3.3V or 5V regulators are not suitable.
Key Features
- Adjustable output voltage from 1.25V to 15V
- 3A maximum output current capability
- Low dropout voltage (typically 1.3V at 3A)
- Internal current limiting and thermal overload protection
- Excellent line and load regulation (0.015 percent typical)
- Fast transient response for stable digital operations
- Standard TO-220 package for efficient heat dissipation
- Operates with an input-to-output differential up to 25V
Specifications
- IC Type = Adjustable Low Dropout (LDO) Regulator
- Output Voltage Range = 1.25V to 15V
- Max Output Current = 3A
- Max Input-Output Differential = 25V
- Reference Voltage = 1.25V (Typical)
- Package Type = TO-220-3
- Number of Pins = 3
- Mounting Type = Through-Hole
- Operating Temperature = -40 to 125 degrees Celsius
Interfaces
- PIN 1 (ADJ) = Adjust Pin (Connects to external resistor divider)
- PIN 2 (OUTPUT) = Adjustable DC Output (connected to Tab)
- PIN 3 (INPUT) = Unregulated DC Input Voltage
- TAB = Connected to Output Pin (serves as heat sink)
