LD29300P2M18R

Overview

The LD29300P2M18R is a fixed-output low-dropout voltage regulator from STMicroelectronics, providing a nominal 1.8 V output with ±1% tolerance at 25°C. It supports a guaranteed continuous output current of up to 3 A and features a typical dropout voltage of 0.4 V under full load. The device includes internal current limiting and thermal shutdown protection, along with a logic-controlled electronic shutdown function for power management.

Feature Summary

• Fixed 1.8 V output with high accuracy
• Logic-controlled electronic shutdown capability
• Internal current and thermal limit protection

Applications

• Power supply switching post regulation
• Series power supply for monitors
• Computer systems
• Battery powered systems

Procurement Notes

Verify the specific package variant (P2PAK) and output voltage (1.8 V) against the datasheet order codes table. Confirm that the logic control pin functionality aligns with system requirements, as this feature is available in the PPAK package version. Ensure input voltage constraints are respected to avoid automatic shutdown.

Selection Notes

Select this component when a stable 1.8 V rail is required for loads up to 3 A. Consider the thermal resistance characteristics of the P2PAK package for heat dissipation planning. Verify compatibility with low ESR output capacitors as specified in the stability requirements. Evaluate the quiescent current consumption against system power budgets.

Part Context

This part belongs to the LD29300xx series of high-current, very low drop voltage regulators. The series offers multiple fixed output voltages and an adjustable version, designed for applications requiring high accuracy and low dropout performance under heavy load conditions.

Replacement Considerations

LD29300P2T18R