LM317LBZG

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

The LM317LBZG is a positive adjustable linear voltage regulator manufactured by onsemi, belonging to the LM317L series. It provides an output current of 100 mA with an adjustable output voltage range from 1.2 V to 37 V. The device operates within an input voltage range of 2.8 V to 40 V and supports a junction temperature range from -40°C to +125°C. Key electrical specifications include a line regulation of 0.04 %/V, load regulation of 0.5 %/V, and a typical power supply rejection ratio (PSRR) of 80 dB at 120 Hz. It is housed in a TO-92-3 through-hole package.

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

• Provides adjustable positive output voltage ranging from 1.2 V to 37 V with a maximum output current of 100 mA.
• Integrates internal protection mechanisms including short-circuit current limiting, thermal overload protection, and safe area protection.
• Features low line regulation of 0.04 %/V and high power supply rejection ratio for stable performance under varying conditions.

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

• Battery chargers
• Post-regulators for switching regulators
• Programmable output control circuits

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

Verify the specific suffix 'B' against official datasheets to confirm it denotes the standard LM317L variant rather than a specialized industrial or automotive grade. Confirm the TO-92-3 package type matches the target PCB footprint. Ensure RoHS compliance requirements are met by checking the manufacturer's material declaration documents prior to ordering.

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

Select this component when a low-cost, through-hole adjustable regulator is required for currents up to 100 mA. It serves as a direct replacement for other LM317L variants in TO-92 packages. Consider the thermal resistance characteristics of the TO-92 package for heat dissipation needs in the final application design.

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

This part belongs to the LM317L family of three-terminal adjustable regulators produced by onsemi. It shares functional similarities with the higher-current LM317 but is optimized for lower power applications. The LM317L series is widely used in general-purpose power management designs requiring reliable voltage regulation in compact form factors.

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

LM317LDR2G: Surface-mount alternative with identical electrical specifications in an SOIC-8 package.