BD933N1WG-CTR

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

The BD933N1WG-CTR is a fixed-output Low Dropout (LDO) linear voltage regulator manufactured by ROHM Semiconductor, designed for automotive applications. It provides a stable 3.3V output with a maximum current of 150mA. The device features a high withstand voltage of up to 45V and supports an input voltage range from 4.5V to 42V. Key electrical parameters include a typical quiescent current of 28µA, a ripple rejection ratio of 70dB, and an output voltage accuracy of ±2.0%. It operates within a temperature range of -40°C to +150°C and utilizes the Nano Cap™ technology for stability with small output capacitors.

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

• Utilizes Nano Cap™ technology to ensure stable operation even with output capacitors in the nanofarad range.
• Incorporates QuiCur™ technology to provide high-speed load response capabilities.
• Designed for functional safety support in automotive environments with robust protection features.
• Offers low static current consumption suitable for battery-connected automotive systems.

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

• Automotive electronic control units requiring direct battery connection
• Systems needing stable power supply under high voltage transients
• Applications demanding minimal standby power consumption

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

Verify the specific suffix 'CTR' indicates tape and reel packaging when ordering. Confirm that the component meets the required automotive functional safety standards for your specific application context. Ensure compatibility with the SSOP-5 package footprint during PCB layout. Check for any RoHS compliance documentation if environmental regulations apply to your manufacturing process.

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

Select this component when a fixed 3.3V output is required with high input voltage tolerance up to 45V. It is suitable for designs prioritizing low quiescent current and fast transient response. Consider the SSOP-5 package size constraints and the need for Nano Cap™ compatible output capacitance values. Verify thermal performance requirements given the operating temperature range and dropout characteristics.

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

This part belongs to ROHM's BD933 series of automotive LDO regulators. The series is characterized by its integration of Nano Cap™ and QuiCur™ technologies. These features allow for reduced external component count and improved dynamic performance. The product line targets modern automotive electronics that require reliable power management under harsh electrical conditions.

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

Check for equivalent parts within the same family such as BD933N1G-C or BD933N1WEFJ-CE2. Ensure pinout compatibility and identical output voltage specifications before substitution. Verify that alternative packages like HTSOP-J8 do not affect mechanical fitment.