AN77L04M

Overview

The AN77L04M is a Panasonic Industry 3-pin positive output low dropout voltage regulator with a fixed 4V output and 100mA current capacity. It operates within an input voltage range of VO +0.43 to 15.18V. Key electrical parameters include a typical minimum input/output voltage difference of 0.23V, a ripple rejection ratio of 69dB at 120Hz, and a bias current of 3mA under no load. The device features built-in overcurrent limit, rush current prevention, overheat protection, and input short-circuit protection circuits.

Feature Summary

• Integrated protection mechanisms including overcurrent limiting, thermal shutdown, and input short-circuit defense.
• Low dropout performance suitable for battery-powered equipment with fluctuating supply voltages.
• Internal circuitry eliminates the need for external protection diodes during input-to-ground short circuits.

Applications

• Low-voltage consumer electronic equipment
• Industrial equipment with significant supply voltage fluctuations
• Battery-operated devices requiring stable constant voltage power supplies

Procurement Notes

Verify component authenticity through authorized Panasonic distributors or verified suppliers. Confirm package type matches HSIP003-P-0000B or lead-free variants SSIP003-P-0000S/HSIP003-P-0000Q. Check datasheet revisions for updated specifications. Ensure environmental compliance requirements are met before procurement.

Selection Notes

Select this regulator when a fixed 4V output is required with up to 100mA load current. Ensure input voltage remains within the specified operational range relative to the output voltage. Verify that the application environment stays within the -30°C to +85°C operating temperature limits. Consider thermal dissipation characteristics if ambient temperatures approach maximum ratings.

Part Context

The AN77L04M belongs to the AN77Lxx/AN77LxxM series of 3-pin positive output low dropout voltage regulators manufactured by Panasonic Industry. This series provides stabilized constant voltage power supplies designed for applications requiring low input/output voltage differences. The 'M' suffix typically denotes specific packaging or variant configurations within the broader product line.

Replacement Considerations

Consult official Panasonic documentation for direct substitutes. Cross-reference pinouts and electrical characteristics carefully. Verify compatibility with existing thermal management and capacitor requirements. Ensure replacement parts meet identical safety and protection feature specifications.