BD433S5FP-CE2

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

The BD433S5FP-CE2 is a fixed-output low dropout (LDO) voltage regulator manufactured by ROHM Semiconductor, designed for automotive applications. It provides a stable 3.3 V output with a maximum continuous current of 500 mA. The device features a typical quiescent current of 38 uA and offers high power supply rejection ratio (PSRR) of 60 dB. It operates within an input voltage range starting from 4 V up to a maximum of 42 V. The regulator ensures output voltage accuracy of +/-2% and maintains performance across an extended temperature range from -40°C to +150°C. It is housed in a TO-252-3 surface-mount package.

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

• Automotive-grade reliability with AEC-Q100 qualification
• Low quiescent current operation for energy efficiency
• High power supply rejection ratio for noise reduction
• Wide operating junction temperature range

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

• Automotive electronic control units
• Infotainment system power regulation
• Sensor interface circuitry
• Body electronics power distribution

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

Verify the complete part number including suffixes against official ROHM documentation to ensure correct package and tape/reel specifications. Confirm RoHS compliance status through the manufacturer's latest datasheet or certification documents. Check for any specific handling requirements related to moisture sensitivity level before assembly. Ensure design-in compatibility with target PCB footprint dimensions for the TO-252-3 package.

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

Select this component when a fixed 3.3 V rail is required for automotive loads drawing up to 500 mA. Consider its low standby current for battery-sensitive systems. Evaluate thermal dissipation capabilities based on the TO-252-3 package and expected ambient temperatures. Compare PSRR performance against other LDOs if noise immunity is critical for downstream analog circuits.

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

This device belongs to the BD433S5-C series of low dropout regulators from ROHM. It is part of a broader family of automotive PMICs designed for robust performance in harsh environments. The series shares common architectural features such as internal protection circuits and fixed output options, catering to various current requirements within automotive infotainment and body control modules.

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

Consult official ROHM substitution guides for direct pin-compatible alternatives. Verify that any substitute matches the 500 mA output current, 3.3 V fixed output, and TO-252-3 package constraints. Ensure the replacement also meets automotive qualification standards and similar electrical characteristics.