LT3055HMSE#TRPBF

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

The LT3055HMSE#TRPBF is a micropower, low noise, low dropout voltage (LDO) linear regulator from Analog Devices. It supplies 500mA of output current with a typical dropout voltage of 350mV. The device features an input voltage range of 1.6V to 45V and includes precision current limit and diagnostic functions. A 10nF bypass capacitor reduces output noise to 25μV RMS in a 10Hz to 100kHz bandwidth. It offers programmable current limit accuracy of ±10%, a current monitor ratio of 1/500th, and temperature monitoring at 10mV/°C. The adjustable version supports an output voltage range from 0.6V to 40V.

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

• Precision current limit and minimum output current monitor for robust fault detection
• Integrated diagnostic pins indicating current limit, thermal limit, and power good status
• Low noise performance optimized for sensitive RF or DSP applications
• Internal protection against reverse battery, reverse current, and thermal overload

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

• Protected antenna supplies
• Automotive telematics systems
• Industrial applications such as trucks and forklifts
• High reliability applications requiring precise current management
• Noise-sensitive RF or DSP power supplies

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

Verify the specific H-grade temperature rating (-40°C to 150°C) and MSOP-16 package configuration against project requirements. Confirm that the tape and reel packaging matches automated assembly needs. Ensure compatibility with the required output voltage range and current limit settings before finalizing procurement.

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

Select this component when high reliability and precise current limiting are critical. The H-grade variant extends the operating junction temperature to 150°C compared to standard grades. Consider the low quiescent current and shutdown capability for power-sensitive designs. Verify that the external components meet the stability requirements for ceramic capacitors.

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

This part belongs to the LT3055 series of linear regulators designed for high-reliability environments. It shares the core architecture with other grades like E, I, and MP, differing primarily in temperature range and testing specifications. The MSOP package provides a compact solution for space-constrained PCB layouts while maintaining thermal performance through the exposed pad.

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

LT3055HMSE#PBF