UCC283TDTR-ADJ

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

The UCC283TDTR-ADJ is a low-dropout linear regulator from Texas Instruments, housed in a TO-263 (DDPAK-5) surface-mount package. It provides a positive fixed output voltage of 3.3V with a maximum continuous output current of 3A. The device features a typical dropout voltage of 400mV at full load and a maximum of 1V. It operates within an input voltage range up to 9V and maintains functionality across a junction temperature range of -40°C to +125°C. Quiescent current is specified at 650µA.

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

• Integrated thermal shutdown and current limiting protection mechanisms ensure operational safety under fault conditions.
• Adjustable output voltage configuration allows for external programming via resistor networks.
• Low quiescent current consumption supports efficient power management in battery-operated applications.

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

• Portable equipment requiring stable low-voltage power supplies
• Battery-powered systems needing efficient linear regulation
• Embedded control circuits with moderate current demands

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

Verify the specific suffix 'TR' indicates tape-and-reel packaging when ordering. Confirm the lead count matches the DDPAK-5 variant for proper PCB footprint compatibility. Ensure the operating temperature range meets your system's environmental requirements. Check for RoHS compliance status if required by your manufacturing standards. Validate that the 3A current rating aligns with your thermal design capabilities.

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

Select this component when a fixed 3.3V output is required with high current capability in a surface-mount format. Consider the TO-263 package for its thermal performance relative to smaller SOT packages. Evaluate the dropout voltage specifications against your minimum input voltage constraints. Compare quiescent current values if power efficiency is critical for the application.

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

This part belongs to the UCC283 family of low-power, 3-ampere linear regulators. The family includes various output voltage options and package types, such as through-hole TO-220 and other surface-mount variants. The ADJ suffix typically denotes adjustable versions, but datasheets confirm fixed outputs like 3.3V exist within the series. This specific model integrates standard LDO protections into a robust industrial-grade package.

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

Direct substitutes include the LM1085IS-3.3/NOPB and LMS1587IS-3.3/NOPB from Texas Instruments. These alternatives offer similar 3A output currents and 3.3V fixed voltages in comparable packages. Verify pinout compatibility and thermal characteristics before substitution. Ensure protection features match the original design requirements.