LTC1159CG-5#PBF

DC DC Switching Controllers Overview

The LTC1159CG-5#PBF is a synchronous step-down switching regulator controller from Analog Devices, housed in a 20-pin SSOP package. It operates with an input voltage range of 4 V to 40 V and supports output currents up to 10 A. The device features a fixed switching frequency of 250 kHz and includes automatic Burst Mode operation for high efficiency at low loads. Key electrical parameters include a typical efficiency of 95%, a shutdown feature, and a maximum operating temperature of +70°C.

DC DC Switching Controllers Feature Summary

• Synchronous buck topology for high-efficiency power conversion
• Automatic Burst Mode operation maintains efficiency at light loads
• Integrated shutdown control for power management

DC DC Switching Controllers Applications

• High efficiency 12V to -12V 1A converters
• Dual output 5V and 3.3V regulators
• General purpose DC to DC conversion systems

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance when sourcing. Confirm the SSOP-20 package availability matches your PCB footprint requirements. Ensure the component meets RoHS standards if required by your manufacturing process. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

DC DC Switching Controllers Selection Notes

Select this controller for applications requiring synchronous rectification and high efficiency across varying load conditions. The 250 kHz frequency allows for compact passive component selection. Consider the 4 V to 40 V input range suitability for your system voltage. Evaluate thermal performance within the 0°C to +70°C operating range for your enclosure design.

DC DC Switching Controllers Part Context

This component belongs to the LTC1159 series of synchronous step-down switching regulator controllers. The series is characterized by its ability to maintain high efficiency through automatic Burst Mode operation. The CG-5 variant specifically denotes the commercial grade temperature range and the 5V reference or configuration associated with the part number.

DC DC Switching Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.