LT1579CGN#PBF

Battery Management Overview

The LT1579CGN#PBF is a low-dropout linear regulator manufactured by Analog Devices Inc., designed for smart battery backup applications. It features two independent inputs and operates within an input voltage range of 2.7 V to 20 V, delivering up to 300 mA of output current. The device provides a fixed 3 V output with a typical dropout voltage of 400 mV and offers high power supply rejection ratio (PSRR) of 70 dB. It functions in the SSOP-16 package, supports surface mount installation, and maintains operation across a temperature range of 0°C to +125°C.

Battery Management Feature Summary

• Dual-input architecture enabling seamless switching between primary power and battery backup sources
• Low quiescent current consumption suitable for battery-powered systems
• Integrated protection against reverse battery polarity and reverse current flow

Battery Management Applications

• Smart battery backup power management circuits
• Portable electronic devices requiring uninterrupted power supply
• Battery-operated instrumentation systems

Battery Management Procurement Notes

Verify the specific suffix '#PBF' confirms lead-free compliance and RoHS standards when sourcing. Confirm the 'GN' designation matches the required SSOP-16 package variant. Ensure the third character indicates the fixed 3 V output version. Cross-reference the manufacturer part number directly with official Analog Devices documentation to avoid counterfeit components.

Battery Management Selection Notes

Select this component when dual-input redundancy is required for critical loads. The fixed 3 V output suits logic circuits needing stable regulation from varying input sources. Consider the 300 mA limit for load requirements. The wide input range accommodates single-cell or multi-cell battery configurations without external level shifting.

Battery Management Part Context

This part belongs to the LT1579 series of smart battery backup regulators. The series distinguishes itself through dual-input capability and low dropout performance. Variants differ primarily by output voltage and package type, such as SOIC or SSOP. The LT1579 family targets applications demanding reliable power continuity during source transitions.

Battery Management Replacement Considerations

LT1579CGN-3#PBF serves as a direct equivalent with identical electrical specifications and pinout compatibility.