LT3008ETS8-1.2#TRPBF

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

The LT3008ETS8-1.2#TRPBF is a micropower low dropout linear regulator from Analog Devices, delivering 20mA output current with a typical dropout voltage of 300mV at full load. It features an ultralow no-load quiescent current of 3μA and less than 1μA in shutdown mode. The device supports an input voltage range from 2.0V to 45V and provides a fixed regulated output of 1.2V with ±2% tolerance over load, line, and temperature variations. It operates within a junction temperature range of –40°C to 125°C and is housed in an 8-lead TSOT-23 package.

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

• Optimized for stability with low ESR ceramic capacitors, requiring a minimum of only 2.2μF without additional ESR requirements.
• Incorporates internal protection circuitry including current limiting, thermal limiting, reverse-battery protection, and reverse-current protection.
• Ground pin current remains stable relative to output current as the load increases, ensuring predictable standby power consumption.

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

• Low current battery-powered systems
• Keep-alive power supplies
• Remote monitoring equipment
• Utility meters
• Low power industrial applications

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

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the E grade designation corresponds to the –40°C to 125°C operating temperature range required for your application environment. Ensure compatibility with the 8-lead TSOT-23 footprint during PCB layout review.

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

Select this fixed 1.2V variant when precise voltage regulation is needed without external resistor dividers. Consider the adjustable version if output voltages outside the standard fixed options are required. Evaluate the thermal performance in the TSOT-23 package against expected power dissipation levels under maximum load conditions.

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

This component belongs to the LT3008 series of micropower LDO regulators designed for moderate drive capability combined with ultralow standby power. The series includes both adjustable and fixed output variants available in thermally enhanced DFN and TSOT-23 packages, targeting efficiency-critical portable and industrial designs.

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

LT3008ITS8-1.2#TRPBF

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

How does the SENSE pin function on fixed voltage versions?

On fixed voltage versions like the LT3008-1.2, the SENSE pin serves as the input to the error amplifier. Connecting it directly to the OUT pin ensures optimum regulation, while connecting it to the load allows for Kelvin sensing to eliminate trace resistance errors.

What is the behavior of the SHDN pin during operation?

Pulling the SHDN pin low activates a low power state and turns the output off. If unused, the pin should be tied to VIN. The device requires connection to this pin to function and cannot be driven below ground unless tied to the IN pin.