UC2832DWTR

Overview

The UC2832DWTR is a precision low dropout linear controller from Texas Instruments, housed in a 16-pin SOIC package. It operates within an input voltage range of 4.5 V to 36 V and features a precise 2 V reference with ±1% accuracy. The device includes an error amplifier, under-voltage lockout, and a high-current driver capable of sourcing or sinking up to 100 mA. It supports industrial operating temperatures from -40°C to +85°C.

Feature Summary

• Innovative duty-ratio current limiting technique that provides peak load capability while managing average power dissipation during fault conditions
• Programmable driver current limit and adjustable current limit to current sense ratio for flexible design configurations
• Logic-level disable input and separate positive supply terminal for enhanced system control and operational versatility

Applications

• Designing very low dropout linear regulators requiring high precision
• Power supplies needing short circuit protection without extra heat sinking
• Systems accommodating high initial load demands via programmable duty-ratio control

Procurement Notes

Verify the specific suffix 'DWTR' indicates tape-and-reel packaging when ordering. Confirm the industrial temperature grade (-40°C to +85°C) matches your environmental requirements. Ensure the 16-pin SOIC footprint aligns with your PCB layout constraints before finalizing procurement.

Selection Notes

Select this component for applications requiring precise voltage regulation with external pass transistors. Consider the UC2832 over fixed regulators if adjustable output voltages or custom current limiting are necessary. Evaluate the need for logic-level disable functionality and separate supply inputs to determine if this controller fits your specific topology.

Part Context

This part belongs to the UCx832/UCx833 series of precision linear controllers. While the UC3833 offers similar functions in an 8-pin package, the UC2832 provides additional pins for enhanced features like adjustable current limits and logic disable. It serves as a versatile building block for custom linear power supply designs.

Replacement Considerations

The UC2832DW is the non-reel version of this component. For military or space applications, consider the UC1832 variants. Enhanced product versions such as UC2832-EP may be required for defense or aerospace environments.