LDL212PVR

Overview

The LDL212PVR is a fixed-output linear regulator from the LDL212 family, manufactured by STMicroelectronics. It provides a guaranteed output current of 1.2 A with a typical dropout voltage of 350 mV at full load. The device operates within an input voltage range of 2.5 V to 18 V and features a high power supply rejection ratio of 87 dB at 120 Hz. It includes an enable function for shutdown mode control and integrates thermal, current, and power limitation protections. The component is housed in a 6-pin DFN package and supports an operating temperature range from -40 °C to 125 °C.

Feature Summary

• Provides stable 1.2 A output current with low dropout characteristics for efficient regulation.
• Features high power supply rejection ratio suitable for direct SMPS regulation and secondary DC-DC filtering.
• Includes logic-controlled enable function to reduce total current consumption via shutdown mode.
• Integrates comprehensive protection mechanisms including thermal, current limit, and undervoltage lockout.

Applications

• Direct regulation in switch-mode power supplies (SMPS)
• Secondary linear regulation in DC-DC converters
• Battery-powered systems requiring low quiescent current

Procurement Notes

Verify the specific suffix 'R' against official datasheets to confirm tape-and-reel packaging configuration. Ensure the fixed output voltage matches the design requirements, as the LDL212 series offers various fixed options. Confirm the DFN6 package dimensions align with PCB footprint specifications. Check for RoHS compliance status and moisture sensitivity level prior to assembly planning.

Selection Notes

Select this component when a fixed output voltage is required without external resistor networks. The LDL212PVR is appropriate for applications needing high PSRR to suppress noise from upstream switching regulators. Consider the thermal performance in the DFN package if operating near maximum current limits. Verify that the input voltage remains within the 18 V absolute maximum rating under all transient conditions.

Part Context

This part belongs to the LDL212 series of 1.2 A low-dropout linear regulators. The series is designed for applications demanding high power supply rejection and compact footprints. Other variants in the family offer different fixed output voltages or adjustable configurations, all sharing similar electrical characteristics and protection features within the same package options.

Replacement Considerations

Consult official substitution lists for compatible parts with identical pinouts and electrical parameters. Verify that any alternative regulator maintains the 1.2 A current capability and 18 V input rating. Ensure the replacement package matches the DFN6 form factor for direct board compatibility.