BD3941FP-E2

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

The BD3941FP-E2 is a linear voltage regulator IC manufactured by ROHM Semiconductor. It provides a fixed positive output voltage of 5V with a maximum output current capability of 500mA. The device features a low dropout characteristic, specified at 0.9V. It operates within an input voltage range that supports the 5V output and functions across a temperature range from -40°C to +85°C. The component is housed in a TO-252-3 surface-mount package, also known as DPak or SC-63, suitable for automated assembly processes.

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

• Fixed positive voltage regulation topology
• Low saturation voltage design for efficiency
• Surface mount mounting style

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

• General purpose power supply circuits
• Embedded system voltage regulation
• Portable electronic devices requiring stable 5V rails

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

Verify the specific suffix E2 against the manufacturer's latest documentation to confirm compliance status and pinout configuration. Ensure the TO-252-3 footprint matches the target PCB design. Confirm thermal management requirements given the 500mA output capability and potential power dissipation. Check for RoHS compliance details in the official datasheet before finalizing procurement specifications.

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

Select this component when a fixed 5V output is required with moderate current demands up to 500mA. The low dropout voltage makes it suitable for applications where the input voltage is close to the output level. Consider the surface-mount package constraints and thermal performance relative to the expected ambient temperature and load conditions during the design phase.

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

This part belongs to ROHM's series of linear voltage regulators designed for compact electronics. The BD3941FP variant utilizes P-channel DMOS output transistors to achieve low saturation voltage characteristics. It is distinct from other regulator types by its fixed output nature and specific package form factor, targeting space-constrained designs.

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

Public confirmed substitute part numbers are not available in the provided source material. Consult the manufacturer's official replacement guide or cross-reference tools for verified alternatives if this component is obsolete or unavailable.