SG117AL-DESC

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

The SG117AL-DESC is a negative adjustable linear voltage regulator from the SG137 series, manufactured by Microchip Technology. It provides an output current of 500 mA with an adjustable output voltage range up to -36 V. The device operates within a temperature range of -55°C to +150°C and features a line regulation of 0.01 %/V and load regulation of 25 mV (0.5%). Typical power supply rejection ratio (PSRR) is 66 dB. It is housed in a CCLC-20 surface-mount package.

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

• Negative adjustable three-terminal linear regulator design
• High operating junction temperature capability up to 150°C
• Low line and load regulation for stable output under varying conditions

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

• Negative rail generation in dual-supply electronic systems
• Industrial control circuitry requiring stable negative voltages
• Military or aerospace equipment demanding high-reliability power management

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

Verify the specific suffix 'DESC' against official Microchip documentation to confirm exact pinout, thermal characteristics, and qualification status. Ensure compatibility with existing PCB footprints for the CCLC-20 package. Confirm that the negative polarity aligns with system requirements, as this component is distinct from positive regulators like the SG117 series.

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

Select this component when a negative adjustable voltage source is required with moderate current capacity. Consider the CCLC-20 package constraints for thermal dissipation at higher currents. Compare performance metrics such as PSRR and dropout voltage against alternative negative regulators if strict noise or efficiency specifications are critical for the application.

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

This part belongs to the SG137 family of negative adjustable linear regulators. It serves as the negative counterpart to the popular SG117 positive regulator series. Designed for high-reliability applications, it shares similar architectural principles but is optimized for negative voltage regulation tasks in harsh environments.

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

Direct replacements may include other SG137 variants with different packaging or suffixes. Verify electrical equivalence regarding output current and voltage range before substitution.