LTC1149CS#TRPBF

DC DC Switching Controllers Overview

The LTC1149CS#TRPBF is a high-efficiency synchronous step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 6 V to 24 V and provides dual adjustable outputs, typically configured for 3.3 V or 5 V. The device integrates two independent buck converters within a single 16-lead SOIC package. Key electrical specifications include a maximum output current of 700 mA per channel and a typical efficiency of 94%. The controller features a fixed switching frequency of 250 kHz and includes a shutdown pin for power management. It is designed for applications requiring compact, efficient DC-to-DC conversion.

DC DC Switching Controllers Feature Summary

• Integrates two independent high-efficiency synchronous buck converters in a single package
• Supports wide input voltage range from 6 V to 24 V
• Features integrated power switches for reduced component count and board space
• Includes shutdown control for enhanced power management capabilities

DC DC Switching Controllers Applications

• Portable computers and handheld equipment power supplies
• Battery-powered systems requiring high efficiency
• Industrial control systems with multiple voltage rails
• Embedded systems needing compact DC-DC conversion

DC DC Switching Controllers Procurement Notes

Verify the specific suffix configuration against official Analog Devices documentation to ensure compatibility with required output voltages and packaging options. Confirm availability status as distribution channels may report limited stock or restricted supply conditions. Cross-reference the part number with the latest datasheet revision to validate pinout and thermal characteristics before finalizing procurement decisions.

DC DC Switching Controllers Selection Notes

Select this component when designing systems that require dual isolated or non-isolated low-voltage rails from a higher voltage bus. Consider the 250 kHz switching frequency for balancing EMI performance and passive component size. Evaluate thermal dissipation requirements based on the expected load current and ambient temperature conditions within the SOIC-16 package constraints.

DC DC Switching Controllers Part Context

The LTC1149 belongs to Analog Devices' family of high-efficiency synchronous step-down regulators. This series is engineered to minimize power loss in portable and battery-operated devices. The CS8 variant denotes the commercial temperature range and SOIC-8 compatible footprint, though the LTC1149 specifically utilizes a 16-lead SOIC package. It serves as a solution for reducing system complexity compared to discrete regulator designs.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include other dual-channel synchronous buck controllers from Analog Devices such as the LTC1149CN#PBF for PDIP packaging or variants with different output voltage presets like LTC1149CS-3.3#TRPBF. Verify pin compatibility and thermal performance when considering alternative manufacturers.