LT3045IMSE-1#TRPBF

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

The LT3045IMSE-1#TRPBF is a high-performance low dropout linear regulator featuring ultralow noise and ultrahigh PSRR architecture for powering noise-sensitive applications. Designed as a precision current reference followed by a high-performance voltage buffer, the device supplies 500mA at a typical 260mV dropout voltage. Operating quiescent current is nominally 2.3mA and drops to less than 1µA in shutdown. The wide output voltage range of 0V to 15V maintains unity-gain operation, providing virtually constant output noise, PSRR, bandwidth, and load regulation independent of the programmed output voltage. It incorporates VIOC tracking to control an upstream switching converter.

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

• Incorporates VIOC tracking function to control upstream switching converters for minimized power dissipation
• Features programmable current limit and fast start-up capability with programmable power good indication
• Provides reverse-battery protection, reverse-current protection, internal current limit with foldback, and thermal limit with hysteresis
• Stable with minimum 10µF ceramic output capacitor

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

• RF Power Supplies: PLLs, VCOs, Mixers, LNAs, PAs
• Very Low Noise Instrumentation
• High Speed/High Precision Data Converters
• Medical Applications: Imaging, Diagnostics
• Post-Regulator for Switching Supplies

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

Verify the specific suffix TRPBF indicates tape and reel packaging configuration. Confirm the IMSE grade corresponds to the required industrial temperature range specifications. Ensure the -1 variant designation matches designs requiring the integrated VIOC control feature. Cross-reference pinout compatibility if replacing standard LT3045 variants lacking this tracking functionality.

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

Select this component when precise input-to-output differential control is required via the VIOC pin to optimize efficiency in pre-regulated systems. Choose the MSOP package for applications needing exposed pad thermal dissipation capabilities. Consider the programmable current limit and power good features for robust system monitoring requirements.

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

This part belongs to the LT3045 family of ultralow noise linear regulators. The -1 suffix distinguishes it from the standard LT3045 by adding the VIOC tracking pin. It shares the core architecture of a precision current reference driving a voltage buffer, allowing easy paralleling for lower noise or higher current applications.

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

LT3045IMSE#TRPBF lacks the VIOC tracking feature found in the -1 variant.