BU28TD2WNVX-TL

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

The BU28TD2WNVX-TL is a single-output fixed positive linear voltage regulator (LDO) manufactured by ROHM Semiconductor. It provides a stable 2.8 V output with a maximum load current of 200 mA. The device operates within an input voltage range of 1.7 V to 6 V and features a typical power supply rejection ratio (PSRR) of 70 dB. Key electrical parameters include a dropout voltage of 220 mV (maximum 420 mV), line regulation of 2 mV, and load regulation of 10 mV. Quiescent current is 35 uA, with a power dissipation rating of 560 mW. It offers 1% voltage accuracy and functions across a temperature range of -40°C to +85°C.

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

• Fixed 2.8 V output with high-accuracy CMOS technology
• High power supply rejection ratio for noise reduction
• Low quiescent current operation for efficiency
• Compact SSON004X1010-4 surface mount package

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

• Portable electronic devices requiring stable low-voltage rails
• Battery-powered systems needing efficient linear regulation
• Embedded circuits in consumer electronics
• General-purpose power management in compact modules

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

Verify the complete part number including suffixes against official ROHM documentation to ensure correct output voltage and package variant. Confirm RoHS compliance status through the manufacturer's datasheet or certification documents before procurement. Check for end-of-life or not recommended for new design (NRND) status if applicable. Ensure ordering quantities align with standard reel packaging requirements specified by the distributor.

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

Select this component when a fixed 2.8 V rail is required with moderate current capability up to 200 mA. Consider its low dropout characteristic for applications where input voltage is close to the output level. Evaluate thermal performance based on the 560 mW power dissipation limit and ambient operating conditions. Compare PSRR specifications against noise-sensitive circuit requirements to ensure adequate signal integrity.

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

This LDO belongs to ROHM's versatile package full CMOS LDO regulator series, designed for space-constrained applications. The SSON004X1010-4 package allows for compact PCB layouts. Similar variants in the series offer different fixed output voltages while maintaining consistent electrical characteristics and package dimensions, facilitating design flexibility across product lines.

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

BU28UA3WNVX-TL is a similar 2.8 V LDO but offers 300 mA output current and uses a DFN-4 package. Verify pin compatibility and thermal performance differences when substituting. Other series members like BU26TD2WNVX-TL provide different fixed voltages but share similar package and electrical profiles.