BH28FB1WHFV-TR

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

The BH28FB1WHFV-TR is a fixed-output CMOS LDO voltage regulator manufactured by ROHM Semiconductor. It provides a stable 2.8 V output with a maximum load current of 150 mA. The device operates within an input voltage range of 1.7 V to 5.5 V and features a typical dropout voltage of 315 mV at full load. Key electrical specifications include a line regulation of 2 mV, load regulation of 10 mV, and a typical power supply rejection ratio (PSRR) of 60 dB at 1 kHz. It incorporates internal protection mechanisms such as thermal shutdown and overcurrent protection.

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

• CMOS architecture designed for low quiescent current consumption
• Integrated thermal shutdown and overcurrent protection circuits
• High ripple rejection capability suitable for noise-sensitive applications

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

• Portable battery-powered electronic devices
• General-purpose linear voltage regulation in consumer electronics
• Power management sections in embedded systems requiring stable 2.8 V rails

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

Verify the component status before procurement, as this part may be classified as Not Recommended for New Designs (NRND). Confirm that the HVSOF-5 package dimensions match your PCB footprint requirements. Ensure compatibility with RoHS directives if operating in regulated markets. Check for alternative lead-free or halogen-free certifications if required by specific project standards.

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

Select this regulator when a fixed 2.8 V output is required with moderate current demands up to 150 mA. Consider the HVSOF-5 package size constraints during layout planning. Evaluate the input voltage headroom against the minimum dropout requirement to ensure regulation stability under varying load conditions. Verify that the external capacitor values meet the stability requirements specified in the official datasheet.

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

This component belongs to the BH28 series of low-dropout regulators from ROHM Semiconductor. It is part of the PMIC category, specifically designed for efficient power management in compact mobile and handheld devices. The series emphasizes small form factors and high integration levels to support modern miniaturization trends in consumer electronics.

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

BU28TD3WG-TR is listed as a similar replacement option by the manufacturer.