BH33FB1WG-TR

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

The BH33FB1WG-TR is a fixed-output CMOS Low Dropout (LDO) voltage regulator manufactured by ROHM Semiconductor. It provides a stable 3.1V output with a maximum continuous current of 150 mA. The device operates within an input voltage range of 2.5 V to 5.5 V and features a maximum dropout voltage of 450 mV. Key electrical specifications include a line regulation of 20 mV, load regulation of 10 mV, and a voltage accuracy of ±1%. It incorporates overcurrent protection and thermal shutdown circuits for reliability. The component is housed in an SSOP-5 surface-mount package and is rated for operation between -40°C and +85°C.

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

• CMOS technology ensures low power consumption and high efficiency.
• Integrated overcurrent protection prevents damage during short-circuit conditions.
• Thermal shutdown circuitry protects the device from overheating under excessive load.

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

• Portable battery-powered electronic devices
• General-purpose logic circuit power supplies
• Embedded systems requiring stable 3.1V rails

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

Verify the specific suffix and revision level against the official datasheet to ensure compatibility with existing designs. Confirm RoHS compliance status as required by project specifications. Check the lifecycle status, as this part may be designated as Not Recommended for New Designs (NRND). Validate that the SSOP-5 footprint matches the PCB layout requirements before finalizing procurement orders.

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

Select this regulator when a precise 3.1V output is required with moderate current demands up to 150 mA. Consider the 450 mV maximum dropout voltage to ensure sufficient headroom between input and output voltages. Evaluate the thermal performance based on expected power dissipation and ambient temperature conditions. Ensure the application does not require adjustable output or higher current capabilities than provided.

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

This component belongs to the BH33 series of CMOS LDO regulators from ROHM Semiconductor. These devices are designed for applications requiring stable voltage regulation in compact form factors. The series typically includes various fixed output voltages and packages to support diverse consumer and industrial electronics needs.

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

Check for direct pin-compatible alternatives within the same manufacturer's portfolio if availability is constrained. Verify that any substitute maintains identical output voltage, current rating, and package dimensions to avoid redesign efforts.