LTC3112IDHD#PBF

Voltage Regulators - DC DC Switching Regulators Overview

The LTC3112IDHD#PBF is a synchronous buck-boost DC/DC converter manufactured by Analog Devices Inc. It features an adjustable output voltage range from 2.7V to 40V and supports a maximum output current of 9A. The device operates with an input voltage range of 2.7V to 40V. Key electrical parameters include a typical quiescent current of 50µA and a switching frequency that can be programmed up to 2MHz. It utilizes a 16-lead DFN package with an exposed pad for thermal performance.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous four-switch buck-boost topology ensures high efficiency across wide input and output voltage ranges.
• Integrated programmable current limit allows for precise control of maximum output current.
• Low quiescent current operation enhances system efficiency in battery-powered applications.
• Supports continuous conduction mode (CCM) and discontinuous conduction mode (DCM) for optimized light-load performance.

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered industrial equipment requiring wide input voltage tolerance.
• Automotive systems operating under load dump or cold crank conditions.
• Portable medical devices needing efficient power conversion from varying battery states.
• Distributed power architectures in telecom infrastructure.

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix #PBF indicates lead-free tin-silver-copper plating compliant with RoHS standards. Confirm the ID suffix denotes the industrial temperature grade range of -40°C to 85°C. Ensure the HD package code matches the 5mm x 4mm DFN footprint required for your PCB layout. Cross-reference the datasheet revision date to ensure compatibility with your design specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a single converter must handle both buck and boost operations due to fluctuating input voltages. The 9A current capability suits high-power density designs. Consider the external component count for inductors and capacitors relative to the chosen switching frequency. Evaluate thermal dissipation requirements given the exposed pad design for heat sinking.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LTC311x family of synchronous buck-boost converters, designed for robust performance in challenging voltage environments. It complements other Analog Devices PMIC solutions by offering integrated protection features such as over-voltage and over-current protection within a compact surface-mount package suitable for automated assembly.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct replacements may include the LTC3112EDHD#PBF for extended temperature grades or the LTC3112BDDHD#PBF for different pinout configurations. Verify equivalent current ratings and package dimensions before substitution. Consult Analog Devices application notes for cross-referencing similar topologies if exact pin-to-pin compatibility is not available.