LT1579CS-3#TRPBF

Battery Management Overview

The LT1579CS-3#TRPBF is a dual-input, single-output low dropout regulator manufactured by Analog Devices Inc. It provides a fixed 3V output with a maximum current of 300mA. The device operates within an input voltage range of 2.7V to 20V and features a typical dropout voltage of 400mV. It includes integrated circuitry for smooth automatic switching between two independent input sources on a priority basis. Key electrical specifications include a quiescent current of 50uA, line regulation of 1.5mV, load regulation of 3mV, and a typical power supply rejection ratio of 70dB. The component supports operation from 0°C to +125°C and utilizes a SOIC-16 surface mount package.

Battery Management Feature Summary

• Dual-input architecture designed for uninterruptible output voltage from two independent sources
• Integrated automatic switching circuitry ensures smooth transitions between inputs
• Low quiescent current consumption suitable for battery backup applications

Battery Management Applications

• Smart battery backup systems requiring seamless source switching
• Uninterruptible power supply circuits for critical logic loads
• Systems prioritizing primary input while maintaining secondary reserve

Battery Management Procurement Notes

Verify the specific suffix #TRPBF against official Analog Devices documentation to confirm tape-and-reel packaging and ensure it matches the required reel quantity. Confirm that the '3' designation corresponds to the 3V fixed output version. Cross-reference the manufacturer part number with the datasheet revision history to validate current production status and compliance details before finalizing procurement orders.

Battery Management Selection Notes

Select this component when a fixed 3V output is required with dual-input redundancy capabilities. Ensure the application demands a maximum load current not exceeding 300mA and an input voltage range compatible with 2.7V to 20V. Consider the SOIC-16 package constraints and thermal performance requirements for the intended operating temperature range up to 125°C.

Battery Management Part Context

This part belongs to the LT1579 series of low dropout regulators. It is distinct from other variants in the family by its specific 3V fixed output configuration and tape-and-reel packaging format indicated by the TRPBF suffix. The series is characterized by its ability to manage dual inputs without external switching components.

Battery Management Replacement Considerations

LT1579CS-3#PBF