LTC1148LCS-3.3#TRPBF

DC DC Switching Controllers Overview

The LTC1148LCS-3.3#TRPBF is a synchronous step-down DC-DC controller manufactured by Analog Devices Inc., housed in a 14-pin SOIC package. It operates with an input voltage range of 3.5 V to 20 V and provides a fixed output voltage of 3.3 V. The device features a switching frequency up to 250 kHz and draws an operating supply current of 1.6 mA. It includes internal synchronization circuitry, offering load regulation of 40 mV. Designed for industrial applications, it functions within a temperature range of 0°C to 70°C.

DC DC Switching Controllers Feature Summary

• Synchronous buck controller architecture for high efficiency
• Internal oscillator allows operation at frequencies up to 250 kHz
• Fixed 3.3 V output configuration simplifies design
• Integrated protection features for reliable operation

DC DC Switching Controllers Applications

• Industrial process control systems
• Portable instrumentation
• Battery-powered equipment
• Telecommunications infrastructure

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when ordering. Confirm RoHS compliance status through official manufacturer documentation prior to procurement. Ensure the 14-SOIC package dimensions match your PCB footprint requirements. Cross-reference the exact part number with authorized distributors to avoid counterfeit components.

DC DC Switching Controllers Selection Notes

Select this component when a fixed 3.3 V output is required without external feedback resistors. It is suitable for designs prioritizing simplicity over adjustable voltage ranges. Consider the 250 kHz maximum switching frequency for EMI constraints. Evaluate the 1.6 mA quiescent current against system power budgets for battery-operated applications.

DC DC Switching Controllers Part Context

This part belongs to the LTC1148 family of synchronous buck regulators from Analog Devices. It shares architectural similarities with other members but differs in its fixed output voltage option. The family is designed for cost-sensitive, medium-current applications requiring high efficiency and minimal external component count compared to non-synchronous alternatives.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include the LTC1148LCS#TRPBF for adjustable output or the LTC1148LCS-3.3#PBF for tube packaging. Verify pin compatibility and thermal performance when transitioning between package types. Check if the fixed 3.3 V requirement can be met by alternative fixed-voltage regulators if flexibility is needed.