LTC3112IFE#PBF

Voltage Regulators - DC DC Switching Regulators Overview

The LTC3112IFE#PBF is a synchronous buck-boost DC/DC converter manufactured by Analog Devices Inc. It operates with an input voltage range of 2.7V to 40V and provides a programmable output voltage from 2.7V to 40V. The device supports a maximum output current of 6A. It features a fixed switching frequency of 500kHz, which can be synchronized to an external clock. The component includes adjustable soft-start time, cycle-by-cycle current limiting, and thermal shutdown protection. It is housed in a 28-lead SSOP package with an exposed pad for enhanced thermal performance.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous four-switch buck-boost topology ensures continuous conduction mode operation across all input-to-output voltage relationships.
• Integrated low on-resistance power switches minimize solution size while maintaining high efficiency under heavy loads.
• Programmable output current limit allows precise control over maximum load current to protect downstream circuitry.
• Wide operating junction temperature range supports reliable performance in demanding industrial environments.

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial automation systems requiring stable power from varying battery or line sources
• Portable test and measurement equipment needing wide input voltage tolerance
• Telecommunications infrastructure powering sensitive logic from fluctuating bus voltages
• Medical devices utilizing single-cell lithium-ion batteries with variable charge states

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including suffixes such as #PBF for lead-free compliance against official Analog Devices documentation. Confirm package type and pinout compatibility during integration. Check for recent Product Change Notices regarding material or manufacturing site updates. Ensure ordering quantities align with factory tube packaging specifications. Validate RoHS directive adherence through manufacturer declarations before procurement finalization.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when input voltage may exceed, equal, or fall below the required output voltage. Evaluate thermal requirements based on the 28-lead SSOP package and expected ambient conditions. Consider the fixed 500kHz switching frequency for filter component sizing. Verify that the 6A current capability meets peak load demands without exceeding thermal limits. Assess synchronization needs if multiple converters operate in close proximity to avoid audible noise or interference.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LTC3112 family of high-efficiency synchronous buck-boost converters. It integrates power switches, controllers, and protection circuits into a single monolithic solution. The family targets applications where input source variability is common, eliminating the need for complex multi-stage power architectures. It replaces discrete solutions to reduce board space and improve reliability.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct replacements within the same family include variants with different current ratings or package options. Cross-referencing requires matching input/output voltage ranges and current capabilities. Verify pin-to-pin compatibility if substituting in existing layouts. Consult Analog Devices for updated equivalents if discontinuations occur.