UA78L05AIPK

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

The UA78L05AIPK is a fixed positive-voltage linear regulator from the Texas Instruments UA78L series. It provides a nominal output voltage of 5V with a maximum continuous output current of 100mA. The device supports a maximum input voltage of 20V and operates within an ambient temperature range of -40°C to 125°C. It utilizes a surface-mount SOT-89-3 package. Key electrical characteristics include a typical dropout voltage of 1.7V at 40mA and a power supply rejection ratio (PSRR) of 49dB at 120Hz.

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

• Integrated thermal overload protection safeguards against excessive heat generation during operation.
• Internal current limiting prevents damage during short-circuit or overload conditions.
• Built-in safe operating area compensation ensures stability under varying load and voltage conditions.

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

• Battery-powered equipment requiring stable low-current regulation
• General-purpose power supplies for embedded systems
• Offline switchers and switching power supply modules

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

Verify the specific suffix IPK corresponds to the SOT-89-3 surface mount package configuration. Confirm RoHS compliance status and lead times directly with authorized distributors, as manufacturing lot variations may affect availability. Ensure the ordering part number matches the required tape-and-reel or cut-tape packaging format for your assembly process.

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

Select this component when a compact surface-mount solution is required for 5V regulation at currents up to 100mA. The SOT-89-3 package offers a smaller footprint compared to traditional through-hole alternatives while maintaining robust internal protection features suitable for consumer electronics and industrial control applications.

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

This regulator belongs to the UA78L family, which serves as a lower-current alternative to the standard UA78xx series. Designed for applications where space constraints limit the use of larger packages, it delivers reliable performance in a three-terminal configuration commonly used for voltage regulation tasks in portable and compact electronic devices.

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

Compatible substitutes include UA78L05AIDR and UA78L05ACDR, though these utilize different SOIC-8 packages. For direct pin-compatible replacement in SOT-89-3, verify equivalent thermal and electrical specifications before substitution.