LTC1149CN#PBF

DC DC Switching Controllers Overview

The LTC1149CN#PBF is a synchronous step-down switching regulator controller manufactured by Analog Devices Inc. It operates with an input voltage range up to 48V and supports a switching frequency of up to 250kHz. The device features a 16-PDIP package and includes internal error amplifiers for precise regulation. It is designed for high-efficiency DC-DC conversion applications, offering a quiescent current of 300uA and operating within a temperature range of 0°C to +70°C.

DC DC Switching Controllers Feature Summary

• Synchronous buck topology for high efficiency
• Wide input voltage capability up to 48V
• Integrated error amplifiers for loop compensation
• Shutdown pin for power management

DC DC Switching Controllers Applications

• Portable computer power supplies
• Hand-held equipment battery chargers
• Industrial distributed power systems
• Battery-powered instrumentation

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and RoHS adherence. Confirm the PDIP-16 package matches your PCB footprint requirements. Check current availability status as supply may be limited or subject to allocation. Ensure the operating temperature range meets your environmental specifications.

DC DC Switching Controllers Selection Notes

Select this component when a wide input voltage range up to 48V is required for synchronous buck applications. It is suitable for designs needing integrated error amplifiers to simplify external compensation networks. Consider the PDIP-16 package if through-hole mounting is preferred over surface mount options.

DC DC Switching Controllers Part Context

This part belongs to the LTC1149 family of dual output synchronous step-down controllers. It shares functional similarities with other members like the LTC1149CS variant but differs in package type. The CN suffix denotes the commercial temperature grade and PDIP packaging.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include LTC1149CS#PBF and LTC1149CS-5#PBF, which offer identical electrical performance in SOIC packages. Verify pin compatibility and thermal dissipation capabilities when transitioning from DIP to SOIC form factors.