LT3055EMSE-3.3#PBF

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

The LT3055EMSE-3.3#PBF is a micropower, low noise, low dropout voltage (LDO) linear regulator from Analog Devices. It provides a fixed 3.3V output with a maximum current of 500mA and a typical dropout voltage of 350mV at full load. The device supports an input voltage range from 1.6V to 45V. Key electrical specifications include an output tolerance of ±2% over load, line, and temperature conditions, and a shutdown current of less than 1μA. Noise performance is optimized to 25μVRMS in a 10Hz to 100kHz bandwidth using a 10nF bypass capacitor.

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

• Precision current limit and diagnostic functions for robust high-reliability applications
• Integrated thermal monitoring and fault indication logic pins
• Stable operation with low ESR ceramic output capacitors
• Reverse battery and reverse output protection circuitry

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

• Protected antenna supplies
• Automotive telematics systems
• Industrial applications such as trucks and forklifts
• Noise-sensitive RF or DSP power supplies

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

Verify the specific suffix #PBF indicates lead-free finish and tube packaging when sourcing. Confirm the EMSE designation corresponds to the MSOP package and E-grade temperature rating. Ensure compatibility with required external components for current limiting and monitoring functions before finalizing procurement orders.

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

Select this component for designs requiring precise current limiting and diagnostic feedback alongside low noise regulation. The fixed 3.3V output eliminates the need for external resistors for voltage setting. Consider the 16-lead MSOP package for space-constrained PCB layouts while ensuring adequate thermal management for the specified operating temperature range.

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

This part belongs to the LT3055 series of linear regulators designed for demanding environments. The series combines micropower operation with advanced diagnostic capabilities. The EMSE variant specifically denotes the MSOP package format and standard industrial temperature grade, distinguishing it from DFN packages or extended temperature grades within the same family.

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

LT3055EMSE-5#PBF offers the same package and features with a 5V fixed output. LT3055EDE-3.3#PBF provides identical electrical characteristics in a DFN package. Verify pinout compatibility and thermal dissipation requirements when substituting between package types.