NCV2951ACDR2

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

The NCV2951ACDR2 is a micropower linear voltage regulator in an SOIC-8 package. It provides a maximum output current of 100 mA with a low quiescent bias current of 75 µA. The device supports an input voltage up to 30 V and features an adjustable output range from 1.25 V to 29 V. It includes internal current limiting and thermal shutdown protection. The 'A' suffix ensures an initial output voltage tolerance of ±0.5%. The component is AEC-Q100 qualified for automotive applications.

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

• Features an error output pin that signals out-of-regulation conditions or serves as a power-on reset signal.
• Includes a logic level shutdown input to actively turn the regulator output on or off.
• Output voltage is programmable using external resistors across a wide range.

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

• Battery-powered computer systems requiring extended battery life
• Consumer equipment needing stable regulation with minimal dropout
• Industrial equipment utilizing microprocessor power-on reset circuits

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

Verify the specific ordering suffix matches the required package and temperature grade. Confirm AEC-Q100 qualification requirements are met for automotive use. Check RoHS compliance status during sourcing. Ensure the supplier provides valid datasheet references for the exact part number variant.

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

Select this component when low quiescent current is critical for battery efficiency. Choose the adjustable version if precise voltage levels outside standard fixed options are needed. Consider the error output feature for system monitoring applications. Verify PCB layout supports the required output capacitance for stability.

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

This part belongs to the LP2951 family of low dropout regulators manufactured by onsemi. It shares core architecture with the LP2950 but adds advanced control features like shutdown and error signaling. The NCV prefix indicates it meets specific automotive site and change control requirements.

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

LP2951ACDR2G

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

What is the function of the Error Output pin?

The Error Output pin signals an out-of-regulation condition when the output voltage drops below a threshold, typically used for early warning or microprocessor power-on reset.

How is the output voltage adjusted?

The output voltage is programmed from 1.25 V to 29 V using an external resistor divider connected to the feedback input.