BD933N1G-CTR

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

The BD933N1G-CTR is a fixed-output Low Dropout (LDO) regulator from ROHM Semiconductor, designed for automotive applications. It features a Nano Cap™ topology allowing stable operation with output capacitors as low as 50nF. The device provides a fixed 3.3V output with a maximum current of 150mA. Key electrical parameters include an input voltage range of 4.5V to 42V, a typical quiescent current of 28μA, and a ripple rejection ratio of 70dB. It operates within a temperature range of -40°C to +150°C and includes protection features such as thermal shutdown and overcurrent protection.

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

• Utilizes Nano Cap™ technology for stability with minimal output capacitance
• QuiCur™ control technology for enhanced load response performance
• High withstand voltage capability suitable for direct battery connection
• Integrated thermal shutdown and overcurrent protection mechanisms

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

• Automotive systems requiring direct battery connection
• Power supply circuits in compact electronic devices
• Voltage regulation for 12V/24V automotive networks

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

Verify the specific suffix G-CTR against official datasheets to confirm package type and tape/reel specifications. Ensure compatibility with RoHS standards and functional safety requirements if applicable to your design. Cross-reference part numbers with authorized distributors to avoid counterfeit components. Confirm availability of SPICE models for simulation validation prior to procurement.

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

Select this component when designing automotive power supplies that require high voltage tolerance and low static current. The Nano Cap™ feature allows for significant reduction in external capacitor size, aiding in miniaturization. Consider the 150mA output limit and 42V maximum input voltage when sizing the power stage. Verify that the SSOP-5 package fits within the available PCB footprint constraints.

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

This LDO belongs to the BD9xxN1 series, which introduces Nano Cap™ technology to ROHM's portfolio. This series addresses the industry need for smaller passive components in power management designs. The BD933 variant specifically targets the 3.3V rail generation commonly used in digital logic and sensor interfaces within vehicles.

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

Check for other variants in the BD933 family with different packages or output accuracies. Verify if newer revisions of the BD9xxN1 series offer improved thermal performance or updated packaging options. Ensure any substitute maintains the same Nano Cap™ stability characteristics.