BD33C0AFP-CE2

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

The BD33C0AFP-CE2 is a fixed-output low-dropout (LDO) voltage regulator manufactured by ROHM Semiconductor. It provides a stable 3.3 V output with a maximum continuous current of 1 A. The device features a high withstand voltage of 35 V and supports an input voltage range from 4.3 V to 26.5 V. It operates within an extended temperature range of -40 °C to +125 °C and holds AEC-Q100 automotive qualification. Key electrical specifications include a ripple rejection ratio of 55 dB and a voltage accuracy of ±1.0% at 25 °C. The unit is housed in a TO-252-3 surface-mount package.

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

• Integrated overcurrent protection and thermal shutdown circuits prevent IC damage during short-circuit or overload conditions.
• High withstand voltage capability allows direct connection to higher voltage automotive bus lines.
• Automotive-grade reliability ensured through AEC-Q100 certification for harsh environment operation.

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

• Power supply regulation in automotive electronic control units
• Voltage stepping down from vehicle battery systems
• Bias voltage generation for automotive sensors and microcontrollers

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

Verify the specific suffix against the manufacturer's latest datasheet to confirm package type and tape/reel specifications, as variations exist within the product line. Ensure the ordering code matches the required TO-252-3 form factor and that the component meets the necessary functional safety support categories for your target application. Cross-reference the part number with official ROHM documentation to avoid substitution errors.

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

Select this component when a robust 1 A LDO with high input voltage tolerance is required for automotive environments. The 35 V withstand voltage distinguishes it from standard 20 V devices, making it suitable for 12 V and 24 V vehicle networks. Consider the TO-252-3 package for its thermal performance and space efficiency compared to larger through-hole options.

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

This regulator belongs to ROHM's series of low saturation voltage regulators designed for automotive use. The BD33C0AFP-C variant shares similar core electrical characteristics but may differ in packaging or specific manufacturing revisions. These components are engineered to provide reliable power management in vehicles where high voltage transients and wide temperature ranges are common operational factors.

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

Check for BD33C0AWFP-E2 if a TO-252-5 package is acceptable, noting the pinout difference. Verify compatibility with BD33C0AFP-C regarding package dimensions and thermal requirements before substituting.