NCV4949PDG

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

The NCV4949PDG is a monolithic integrated 5.0 V low dropout (LDO) voltage regulator manufactured by onsemi, designed for applications requiring stable power delivery with minimal voltage drop. It features an output current capability of 100 mA and incorporates additional functional blocks including a power-on reset circuit and an uncommitted voltage sense comparator. The device operates within an input voltage range of 6 V to 28 V, ensuring reliable regulation across varying supply conditions. Packaged in an 8-pin DIP configuration, it supports fixed output voltage operation with specified dropout voltages ranging from a nominal 0.3 V to a maximum of 0.5 V.

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

• Integrates a power-on reset generator to ensure system initialization safety
• Includes an uncommitted voltage sense comparator for external monitoring functions
• Provides very low dropout performance for efficient linear regulation

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

• Systems requiring monitored power-up sequences
• Voltage sensing circuits utilizing the internal comparator
• Low dropout regulation for 5V logic supplies

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

Verify that the specific part number suffix corresponds to the desired package type, as datasheets may list variations such as surface mount or through-hole options. Confirm that the automotive-grade designation aligns with your environmental requirements. Ensure compatibility with existing board layouts for the 8-pin DIP footprint before finalizing procurement orders.

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

Select this component when a fixed 5V output is required alongside integrated reset and sensing capabilities. It is suitable for designs where minimizing external components is prioritized over ultra-low quiescent current consumption. Consider the thermal dissipation requirements associated with the 100mA output current and the specific input-to-output voltage differential during operation.

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

This LDO regulator belongs to a family of integrated power management solutions that combine standard voltage regulation with auxiliary control features. Unlike basic regulators, it embeds diagnostic and timing functions directly into the silicon, reducing the bill of materials. The inclusion of automotive-grade variants indicates suitability for broader industrial and consumer electronics applications requiring robust performance.

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

Direct replacements must match the 5V fixed output, 100mA current rating, and 8-pin DIP package. Verify that substitute parts support the same input voltage range up to 28V and include comparable reset and comparator functionalities if those features are utilized in the design.