AN78L08M

Overview

The AN78L08M is a 3-pin fixed positive output monolithic voltage regulator from the AN78LxxM series by Panasonic. It provides a nominal 8V output with a tolerance of ±5% (7.6V to 8.4V) at Ta=25°C. The device supports up to 100mA output current and operates within an ambient temperature range of -30°C to +80°C. Maximum input voltage is 35V, with a minimum dropout voltage of 1.7V at 100mA load. It features built-in overcurrent limiting and thermal overload protection circuits.

Feature Summary

• Fixed positive output voltage regulation without external components
• Integrated overcurrent limit circuit for short-circuit protection
• Built-in thermal overload protection circuit to prevent overheating

Applications

• Local on-card power regulation
• General electronic equipment power supplies
• Battery-operated devices requiring stable voltage rails

Procurement Notes

Verify the specific package variant, as Panasonic transitions from SSIP003-P-0000 to lead-free SSIP003-P-0000S. Confirm operating temperature range requirements against the M-series specification (-30°C to +80°C). Ensure input voltage does not exceed absolute maximum ratings under all transient conditions.

Selection Notes

Select this component when a fixed 8V rail is required with moderate current demands up to 100mA. Consider the HSIP package option if higher power dissipation capabilities are needed compared to the standard SSIP package. Verify board layout constraints for the 3-pin through-hole configuration.

Part Context

Part of the AN78Lxx/AN78LxxM series of 3-terminal positive linear regulators. The 'M' suffix typically denotes the specific package type or temperature grade variations within the broader AN78Lxx family, which includes voltages from 4V to 24V.

Replacement Considerations

Cross-reference with other 78L08 equivalents from manufacturers like STMicroelectronics or Nisshinbo, ensuring pinout compatibility and thermal performance match the application's heat sinking requirements.