The LM1084ISX-12 is a low dropout (LDO) positive voltage regulator from Texas Instruments (formerly National Semiconductor). It is designed to provide a stable and accurate 1.2V output voltage with a low dropout voltage, making it ideal for applications where input voltage is close to the desired output voltage. The regulator is capable of delivering up to 5A of output current.

Applications

• Post Regulators for Switching Supplies
• Battery Chargers
• Constant Current Regulators
• Microprocessor Power Supplies
• Adjustable Power Supplies

Features

• Low Dropout Voltage
• Fixed 1.2V Output Voltage
• 5A Output Current Capability
• Current Limiting and Thermal Shutdown Protection
• Available in Surface Mount Package (TO-263)
• Stable with Low ESR Output Capacitors

Benefits

• Provides a stable and accurate 1.2V output voltage, ensuring reliable operation of downstream circuits.
• Operates efficiently even when the input voltage is close to the output voltage, maximizing battery life in portable devices.
• Can supply up to 5A of output current, making it suitable for powering high-current loads.
• Protects the regulator and downstream circuits from damage due to overcurrent or overheating.
• Simplifies board assembly with surface mount package.
• Stable operation with a wide range of output capacitors, reducing design complexity.

The LM1084ISX-12 features built-in current limiting and thermal shutdown protection, which protects the regulator and the load from damage in the event of a fault condition. The low dropout voltage allows the regulator to operate with a minimal difference between the input and output voltages, making it ideal for battery-powered applications. The regulator is available in a surface mount TO-263 package, which simplifies board assembly.

Technical Specifications:

• Output Voltage: 1.2V
• Maximum Output Current: 5A
• Dropout Voltage: 1.3V (at 5A)
• Input Voltage Range: Up to 15V
• Package Type: TO-263