AMS1117-3.3 SOT-89

Voltage Regulators - Linear Regulator Controllers Overview

The AMS1117-3.3 is a fixed-output low-dropout linear regulator manufactured by Shenzhen Slkormicro Semicon Co., Ltd. in the SOT-89 surface-mount package. It provides a stable 3.3V output with a maximum continuous current of 1A. The device features a typical dropout voltage of 1.1V at full load and supports input voltages up to 20V, with a recommended operating range not exceeding 15V. Internal protections include thermal shutdown and current limiting. The component operates within a junction temperature range of -40°C to +125°C.

Voltage Regulators - Linear Regulator Controllers Feature Summary

• Fixed 3.3V output voltage with high precision regulation
• Integrated thermal shutdown and current limiting protection circuits
• Low dropout voltage characteristic for efficient power conversion
• SOT-89 surface-mount package design for compact integration

Voltage Regulators - Linear Regulator Controllers Applications

• Battery-powered instrumentation systems
• Post-regulators for switching power supplies
• Power management for notebook computers
• Active SCSI terminators

Voltage Regulators - Linear Regulator Controllers Procurement Notes

Verify that the received components match the specified SOT-89 package and 3.3V fixed output variant. Confirm manufacturer markings align with Shenzhen Slkormicro Semicon Co., Ltd. specifications. Ensure proper handling procedures are followed to prevent electrostatic discharge damage during installation and storage.

Voltage Regulators - Linear Regulator Controllers Selection Notes

Select this component when a stable 3.3V rail is required from higher input sources such as 5V or battery packs. The SOT-89 package offers adequate thermal performance for moderate current loads. Consider the dropout voltage requirements relative to the minimum input voltage available in the specific application circuit.

Voltage Regulators - Linear Regulator Controllers Part Context

This part belongs to the AMS1117 series of three-terminal low-dropout regulators. The series includes various fixed voltage options and an adjustable version. The AMS1117-3.3 specifically targets applications requiring a reliable 3.3V supply for digital logic and analog circuits in portable and industrial electronics.

Voltage Regulators - Linear Regulator Controllers Replacement Considerations

Compatible replacements include other AMS1117-3.3 variants from different manufacturers offering identical pinouts and electrical characteristics. Verify package compatibility and thermal resistance values before substitution.