BD933M5HFP-CTR

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

The BD933M5HFP-CTR is a fixed-output Low Dropout (LDO) regulator from ROHM Semiconductor's QuiCur series, designed for automotive applications. It provides a 3.3V output with a maximum current of 0.5A and operates within an input voltage range of 4.6V to 42V. The device features a typical dropout voltage of 0.44V at 0.3A load and maintains high ripple rejection of 70dB. It exhibits a quiescent current of 9.5µA and output accuracy of ±2.0%. Packaged in HRP-5, it supports an operating temperature range from -40°C to +125°C.

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

• QuiCur topology enables fast load response characteristics suitable for dynamic power demands.
• High withstand voltage capability allows direct connection to vehicle battery systems.
• Low quiescent current consumption minimizes standby power loss in automotive environments.

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

• Automotive electronic control units requiring stable 3.3V supply
• Battery-connected automotive power distribution networks
• Infotainment system power regulation modules

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

Verify the specific suffix 'CTR' indicates tape-and-reel packaging configuration when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the component meets AEC-Q100 qualification requirements if mandated by your specific automotive safety standards. Cross-reference datasheet revisions to confirm pinout consistency with existing designs.

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

Select this component for automotive designs requiring a 3.3V rail with 500mA capacity and low static current. The HRP-5 package suits space-constrained PCB layouts. Consider the 4.6V minimum input voltage against your system's lowest operating voltage. The 70dB ripple rejection is adequate for noise-sensitive analog circuits without additional filtering.

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

This part belongs to the BD933M5-C series of linear regulators utilizing ROHM's proprietary QuiCur technology. The series targets automotive markets with high reliability needs. The HRP-5 package variant offers a compact footprint compared to larger TO-252 options while maintaining thermal performance for moderate current loads in enclosed automotive enclosures.

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

Direct substitutes include BD933M5HFP-C for standard reel packaging or BD933M5WFP-CE2 for enable-pin functionality. Verify pin compatibility before swapping. Alternative packages like TO-252-3 offer similar electrical specs but require layout adjustments.