LP2960IN-5.0

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The LP2960IN-5.0 is a fixed positive low-dropout (LDO) voltage regulator manufactured by National Semiconductor, now part of Texas Instruments. It provides a stable 5.0 V output with a maximum load current capability of 0.5 A. The device features a typical dropout voltage of 0.8 V at full load, ensuring efficient regulation even when the input voltage is close to the output level. It is housed in a 16-pin PDIP plastic package and operates within a junction temperature range of -40°C to 125°C.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Fixed 5.0 V output voltage for precise power supply applications
• Low dropout voltage characteristic for improved efficiency
• Micropower design suitable for battery-operated systems
• Internal protection against thermal overload and current limiting

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Battery-powered portable electronic devices
• General-purpose linear power supplies
• Post-regulation for switching converters
• Embedded system voltage rails

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify that the component is sourced from authorized distributors or certified surplus suppliers to ensure authenticity. Check for markings indicating National Semiconductor or Texas Instruments origin. Confirm the package type matches the 16-pin DIP specification. Inspect for physical damage or corrosion on pins before integration into circuit designs.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this regulator when a fixed 5 V output is required with moderate current demands up to 500 mA. Consider the 0.8 V dropout requirement to ensure sufficient input-output differential. Evaluate thermal dissipation needs based on the power dissipation formula involving input voltage, output voltage, and load current. Ensure the operating environment stays within the specified temperature limits.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

The LP2960 series belongs to National Semiconductor's family of adjustable micropower LDO regulators. While often configurable via external resistors, specific suffixes like '-5.0' denote fixed output voltages. This component shares architectural similarities with the LP2951 and LP2952 but offers higher current capacity than earlier micropower variants, bridging the gap between low-power references and high-current regulators.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Direct substitutes include other fixed 5V LDOs with similar current ratings such as the LM317 configured for fixed output or comparable TI parts like the LP2951 if lower current suffices. Verify pin compatibility and thermal performance before substitution.