LTC1148CS#PBF

DC DC Switching Controllers Overview

The LTC1148CS#PBF is a high-efficiency synchronous step-down switching regulator manufactured by Analog Devices. It operates with an input voltage range of 3.5 V to 20 V and provides a fixed 5 V output. The device delivers up to 700 mA of output current while maintaining a low quiescent current of 160 µA. It features a fixed switching frequency of 250 kHz and includes current limit protection. Packaged in a 14-pin SOIC, it supports shutdown functionality for power conservation.

DC DC Switching Controllers Feature Summary

• Synchronous rectification architecture ensures high conversion efficiency across load ranges.
• Integrated current limit protection safeguards the device under overload conditions.
• Shutdown pin allows for active control of power consumption states.

DC DC Switching Controllers Applications

• Portable computer power supplies
• Hand-held equipment power management
• Battery-powered systems requiring efficient DC-DC conversion

DC DC Switching Controllers Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm pinout and electrical characteristics. Confirm RoHS compliance status through the manufacturer's datasheet. Check current availability as distribution channels may list limited stock or obsolete status. Ensure the package type matches the design requirements before ordering.

DC DC Switching Controllers Selection Notes

Select this component for applications requiring a fixed 5 V output from a 3.5 V to 20 V input source. It is suitable for designs prioritizing efficiency and low standby power due to its synchronous topology and low quiescent current. Consider the 14-pin SOIC package constraints for PCB layout. Evaluate thermal performance based on the expected load current and ambient temperature.

DC DC Switching Controllers Part Context

The LTC1148 series comprises high-frequency buck converters designed for portable electronics. The CS variant denotes a commercial temperature range operation. This specific part number represents the fixed 5 V output version in a tube package. It belongs to the PMIC category within Analog Devices' power management portfolio.

DC DC Switching Controllers Replacement Considerations

Consult Analog Devices for direct replacements. Verify compatibility of input voltage range, output current capability, and package dimensions. Ensure equivalent switching frequency and control features match system requirements.