BH31PB1WHFV-TR

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

The BH31PB1WHFV-TR is a fixed-output CMOS Low Dropout (LDO) voltage regulator manufactured by ROHM Semiconductor. It provides a stable 3.1 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 0.315 V at full load, with a maximum of 0.6 V. Packaged in a compact VSOF FL6,.047,20 (SOF-5) housing, it supports surface-mount installation. The regulator includes protection mechanisms such as thermal shutdown and over-current protection, ensuring reliable performance across the specified operating temperature range.

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

• CMOS architecture designed for low power consumption and high efficiency
• Integrated thermal shutdown and over-current protection for system safety
• Fixed 3.1 V output voltage with ±1% accuracy tolerance
• Compact five-pin surface-mount package suitable for space-constrained designs

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

• Portable battery-powered electronic devices requiring stable low-voltage rails
• Embedded systems utilizing microcontrollers or digital logic circuits
• Consumer electronics needing efficient linear regulation from single-cell sources

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

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and lead times prior to ordering. Ensure storage conditions adhere to moisture sensitivity levels defined in the datasheet. Validate that the specific suffix matches the required package variant. Request batch-specific documentation for quality assurance purposes during procurement.

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

Select this regulator when a precise 3.1 V rail is required with minimal quiescent current. Consider the 150 mA output limit against peak load demands. Evaluate the VSOF-5 package dimensions against PCB layout constraints. Compare dropout characteristics with input voltage variations to ensure regulation stability under varying load conditions.

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

This component belongs to ROHM's BH series of CMOS LDO regulators, characterized by high precision and low noise performance. The PB1 designation indicates a fixed 3.1 V output variant within this family. These regulators are engineered for applications demanding stable power delivery in compact form factors, leveraging advanced CMOS processes for enhanced efficiency compared to traditional bipolar counterparts.

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

Check for pin-compatible alternatives within the same ROHM BH series offering different output voltages. Verify equivalent electrical parameters such as dropout voltage and load current capability. Ensure replacement packages match the physical footprint and thermal requirements of the original design.