E-L6932D2.5TR

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

The L6932D2.5TR is a high-performance Ultra Low Drop Output (ULDO) linear regulator manufactured by STMicroelectronics, designed for applications requiring stable power delivery with minimal heat generation. It features a fixed 2.5V output voltage and supports up to 2A of continuous load current. The device operates within an input voltage range of 2V to 14V and incorporates an internal N-channel MOSFET with a maximum drain-source on-resistance of 200mΩ. Key electrical characteristics include a quiescent current of 200µA at any load, 1% voltage regulation accuracy, and a ripple rejection of 75dB at 120Hz. Protection mechanisms include short-circuit protection with a fixed current limit of 2.5A and thermal shutdown triggered at 150°C. The component is housed in an SO-8 (4+4) surface-mount package.

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

• Ultra-low dropout architecture utilizing an internal N-channel MOSFET to minimize power dissipation during DC-DC conversion between close voltage levels.
• Integrated control features including Enable pin functionality and Power Good open-drain output for system monitoring.
• Robust protection suite comprising short-circuit current limiting and thermal shutdown to safeguard the device under fault conditions.
• High line and load regulation performance ensuring consistent output voltage stability across varying input and load conditions.

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

• Motherboard power supply circuits
• Mobile PC power management systems
• Hand-held instrument power regulation
• PCMCIA card power interfaces
• Processor I/O and chipset voltage supplies

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

Verify the specific suffix 'TR' indicates tape-and-reel packaging when sourcing components. Confirm that the part number corresponds to the fixed 2.5V output variant rather than adjustable or other voltage versions. Check manufacturer documentation for current lifecycle status as older revisions may be discontinued. Ensure compatibility with required operating temperature ranges and verify RoHS compliance if mandated by project specifications.

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

Select this component when a fixed 2.5V rail is required with high current capability up to 2A. Consider the low quiescent current for battery-operated devices where standby power consumption is critical. Evaluate thermal constraints carefully, as the SO-8 package has limited thermal dissipation capabilities under high dropout voltages. Ensure input voltage remains within the 2V to 14V operational window and account for the need for external input and output capacitors to maintain loop stability.

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

The L6932 series belongs to STMicroelectronics' family of high-performance ULDO linear regulators. This specific model, L6932D2.5TR, represents the fixed 2.5V output version packaged in tape-and-reel format for automated assembly. It shares core architectural features with other variants like the 1.5V and 1.8V fixed versions, as well as the adjustable L6932D1.2, offering designers flexibility in selecting precise voltage rails while maintaining consistent protection and control features across the product line.

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

Direct functional substitutes within the same family include L6932D1.5TR (1.5V fixed), L6932D1.8TR (1.8V fixed), and L6932D1.2TR (adjustable). Verify that alternative packages such as tube-packed versions (e.g., L6932D2.5) meet assembly requirements. Cross-family replacements require matching input voltage range, output current capacity, and package footprint.