HA178L12A-E

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

The HA178L12A-E is a three-terminal linear voltage regulator manufactured by Renesas Electronics Corporation. It provides a fixed positive output voltage of 12V with a maximum load current capability of 100mA. The device features internal thermal overload protection and short-circuit current limiting to ensure reliable operation under fault conditions. It is designed for applications requiring stable power supply in compact form factors, utilizing standard surface-mount packaging options suitable for automated assembly processes.

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

• Provides a fixed 12V DC output voltage
• Supports up to 100mA continuous load current
• Includes internal thermal shutdown protection
• Features built-in short-circuit current limiting

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

• General purpose linear power supplies
• Battery-powered equipment requiring stable voltage regulation
• Embedded systems with low-power logic requirements

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

Verify the specific suffix (e.g., -E) against the manufacturer's official datasheet to confirm package type and tape-and-reel specifications. Ensure compatibility with RoHS directives if required by your manufacturing standards. Confirm availability status as legacy support may apply to certain variants within this product line.

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

Select this component when a fixed 12V output at low current is required without complex external feedback networks. Consider its thermal performance relative to ambient temperature and PCB copper area. Compare dropout voltage characteristics against input supply variations to ensure regulation stability across the intended operating range.

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

This part belongs to the HA178L series of three-terminal regulators, which are widely used for simple voltage regulation tasks. The 'L' designation typically indicates the low-current variant compared to higher-power counterparts. Renesas continues to support these legacy components for existing designs requiring proven reliability.

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

Check for direct pin-compatible alternatives such as the HA178L12A-TZ or other industry-standard 78L12 equivalents. Verify that substitute parts meet the same electrical specifications and package dimensions to avoid redesign efforts.