S-816A40AMC-BAPT2U

Voltage Regulators - Linear Regulator Controllers Overview

The S-816A40AMC-BAPT2U is a linear low-dropout (LDO) voltage regulator manufactured by ABLIC Inc. It belongs to the S-816 series and provides a fixed positive output voltage of 4.0 V with a maximum output current capability of 300 mA. The device features an ultra-low quiescent current of 1.2 µA, ensuring minimal power consumption in standby or active modes. It operates within a junction temperature range of -40°C to +85°C and utilizes an SOT-23-5 surface-mount package.

Voltage Regulators - Linear Regulator Controllers Feature Summary

• Ultra-low quiescent current consumption for extended battery life
• Fixed positive output voltage regulation
• High output current drive capability
• Compact surface-mount packaging

Voltage Regulators - Linear Regulator Controllers Applications

• Battery-powered portable electronic devices
• Low-power sensor nodes
• Microcontroller power supply rails
• Wearable technology circuits

Voltage Regulators - Linear Regulator Controllers Procurement Notes

Verify the specific suffix BAPT2U against official ABLIC documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with existing PCB footprints for the SOT-23-5 form factor. Confirm RoHS compliance status through the manufacturer's latest datasheet before finalizing procurement orders.

Voltage Regulators - Linear Regulator Controllers Selection Notes

Select this component when a stable 4.0 V rail is required from higher input voltages with minimal static current draw. The 300 mA output current supports moderate load demands. Verify that the input voltage remains within the specified maximum limit to prevent thermal issues. Consider the SOT-23-5 footprint constraints during layout design.

Voltage Regulators - Linear Regulator Controllers Part Context

This part is part of the ABLIC S-816 series of LDO regulators, designed for high-efficiency power management in space-constrained applications. The series is characterized by low noise and high ripple rejection ratios suitable for sensitive analog and digital circuits.

Voltage Regulators - Linear Regulator Controllers Replacement Considerations

Check for direct pin-compatible alternatives within the S-816 family or newer generations such as the S-817 series if availability is constrained. Ensure replacement parts match the 4.0 V output and 300 mA current rating.