LX8117-25CDT

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

The LX8117-25CDT is a positive fixed linear low-dropout (LDO) voltage regulator manufactured by Microsemi Corporation. It provides a fixed output voltage of 2.5V with a maximum continuous output current of 1.2A. The device supports an input voltage range up to 12V and features a typical dropout voltage of 1.3V at full load. Key electrical specifications include a quiescent current of 10 mA, power supply rejection ratio (PSRR) of 75dB at 120Hz, and operation within a temperature range of 0°C to 125°C. It is housed in a TO-263-4 (D2PAK) surface-mount package.

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

• Integrated overcurrent and short-circuit protection mechanisms for enhanced system reliability.
• High power supply rejection ratio (PSRR) to minimize noise coupling from the input source.
• Fixed output voltage configuration eliminates the need for external feedback resistors.

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

• Power management for portable electronic devices requiring stable 2.5V rails.
• Input conditioning for RF modules and communication circuits.
• Biasing stages in industrial control systems operating under high thermal loads.

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

Verify component authenticity through authorized distributors due to potential counterfeits. Confirm package integrity upon receipt as the TO-263 form factor is sensitive to mechanical stress during handling. Ensure storage conditions comply with moisture sensitivity level (MSL) requirements to prevent soldering defects during assembly.

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

Select this regulator when a precise 2.5V output is required with high current capability. Evaluate thermal dissipation needs carefully, as the 1.2A output generates significant heat; adequate PCB copper area or heatsinking is essential. Compare PSRR requirements against alternative LDOs if input noise is critical to downstream circuit performance.

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

This component belongs to the LX8117 series of high-current linear regulators designed for robust performance in space-constrained applications. The series offers various fixed voltage options and adjustable variants, all sharing similar protection features and packaging styles to simplify design reuse across different product lines.

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

Direct substitutes may include other 1.2A LDOs with 2.5V output in D2PAK packages. Verify pin compatibility and thermal characteristics before substitution. Cross-reference with Microsemi's official replacement guides for end-of-life part transitions.