BH28NB1WHFV-TR

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

The BH28NB1WHFV-TR is a single-channel CMOS LDO voltage regulator manufactured by ROHM Semiconductor, housed in an HVSOF-5 surface-mount package. It provides a fixed 2.8 V output with a maximum current of 0.15 A. The device operates within an input voltage range of 2.5 V to 5.5 V and withstands up to 6.5 V. Key electrical parameters include a typical dropout voltage of 0.25 V at 0.1 A load, 80 dB ripple rejection at 1 kHz, and ±1.0% output accuracy. Circuit current is 0.06 mA, with load regulation of 6 mV (1 to 100 mA). It functions between -40°C and +85°C.

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

• Integrates shutdown function for power management control
• Includes thermal shut-down and over-current protection circuits
• Delivers high ripple rejection capability suitable for noise-sensitive applications

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

• Portable electronic devices requiring low quiescent current
• Battery-powered systems utilizing ceramic output capacitors
• Embedded circuits needing stable 2.8 V logic supply rails

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

This component carries a Not Recommended for New Designs status, indicating it is produced solely to support existing customers rather than for new development projects. Verify availability constraints and lifecycle commitments before integration into long-term production plans. Ensure compliance with RoHS specifications and confirm that the HVSOF-5 package aligns with current manufacturing capabilities.

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

Select this regulator when a fixed 2.8 V output is required with precise ±1.0% accuracy and high ripple rejection. It is suitable for designs utilizing small ceramic output capacitors, specifically 2.2 µF. Consider the 2.5 V minimum input voltage requirement and ensure the application environment stays within the -40°C to +85°C operating range while leveraging built-in thermal and over-current protections.

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

The BH28NB1WHFV-TR belongs to the BH28NB1 series of CMOS LDO regulators from ROHM Semiconductor. This family focuses on providing high precision and stability in compact packages. The specific suffix indicates the taping format for automated assembly. It shares architectural similarities with other variants in the series, differing primarily in output voltage settings and specific performance metrics like ripple rejection.

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

No public confirmed substitute part numbers are documented for this specific component.