BH31MA3WHFV-TR

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

The BH31MA3WHFV-TR is a single-output fixed low-dropout (LDO) linear voltage regulator manufactured by ROHM Semiconductor. It provides a nominal output voltage of 3.1 V with a maximum continuous output current of 300 mA. The device operates within an input voltage range of 2.5 V to 5.5 V and features a typical dropout voltage of 60 mV at 100 mA load. Key electrical specifications include a ripple rejection ratio of 60 dB, line regulation of 2 mV, and load regulation of 18 mV. The quiescent current is 65 µA, and the power dissipation capability is rated at 680 mW. It supports an operating temperature range from -40°C to +85°C.

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

• Integrates comprehensive protection mechanisms including thermal shutdown and over-current protection to ensure operational safety under fault conditions.
• Delivers high output voltage accuracy of ±1% to maintain stable power delivery for sensitive downstream circuitry.
• Capable of driving ceramic output capacitors without stability issues, facilitating compact printed circuit board layouts.

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

• Portable battery-powered consumer electronics requiring efficient power management
• Embedded systems utilizing microcontrollers or memory devices needing regulated supply rails
• Communication modules and sensor interfaces in industrial control equipment

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

Verify component authenticity through authorized distribution channels to mitigate counterfeiting risks. Confirm that the specific suffix matches the required package and tape-and-reel specifications. Ensure compliance with RoHS directives if environmental standards are mandated for the end product. Cross-reference the manufacturer's latest datasheet for any updates regarding pin configurations or recommended external component values prior to finalizing procurement orders.

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

Select this regulator when a fixed 3.1 V rail is required with moderate current demands up to 300 mA. Consider the low dropout characteristic for applications where the input voltage margin is minimal. Evaluate the thermal performance based on the expected ambient temperature and power dissipation limits. Compare against adjustable regulators if flexibility in output voltage is needed, though this part offers higher precision for fixed applications.

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

This component belongs to the BH3xMA3 series of CMOS LDO regulators from ROHM Semiconductor. The series is characterized by high accuracy and low noise, designed for portable devices. Similar parts in the family offer different fixed output voltages while sharing identical packaging and protection features. The HVSOF-6 package allows for space-constrained designs common in modern mobile and wearable technology sectors.

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

Direct substitutes within the same series include BH30MA3WHFV-TR (3.0 V), BH33MA3WHFV-TR (3.3 V), and BH28MA3WHFV-TR (2.8 V). These alternatives share identical pinouts, packages, and electrical characteristics except for the fixed output voltage. Verify that the system design can tolerate the slight voltage difference before swapping between these variants.