LM1117T-ADJ 800mA Adjustable Low Dropout Positive Voltage Regulator TO-220-3 (LM1117T-ADJ TO220-3)
The LM1117T-ADJ is a versatile low dropout (LDO) positive voltage regulator designed to provide an adjustable output voltage with a current capability of up to 800mA. By using an external two-resistor divider, the output voltage can be precisely set from 1.25V up to 13.8V. This IC is engineered to maintain a stable output with a low input-to-output voltage differential, featuring a maximum dropout of 1.2V at 800mA. It is part of the widely used 1117 series, known for its reliability and precision.
This IC is primarily used in adjustable high-efficiency linear regulators, battery chargers, and active SCSI terminators. It is a fundamental 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 13.8V
- 800mA maximum output current capability
- Low dropout voltage (typically 1.2V at 800mA)
- Internal current limiting and thermal overload protection
- Excellent line and load regulation (0.2 percent typical)
- Fast transient response for stable digital operations
- Standard TO-220 package for easy mounting and heat dissipation
- Operates with an input voltage up to 15V
Specifications
- IC Type = Adjustable Low Dropout (LDO) Regulator
- Output Voltage Range = 1.25V to 13.8V
- Max Output Current = 800mA
- Max Input Voltage = 15V
- Dropout Voltage = 1.2V (at 800mA)
- Reference Voltage = 1.25V (Typical)
- Package Type = TO-220-3
- Number of Pins = 3
- Mounting Type = Through-Hole
- Operating Temperature = 0 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)
