LT1956EFE#PBF

Overview

The LT1956EFE#PBF is a monolithic buck switching regulator from Analog Devices, designed for high-voltage applications with an input voltage range of 5.5V to 60V. It integrates a high-efficiency 1.5A power switch and operates at a fixed 500kHz switching frequency. The device utilizes current-mode architecture to ensure fast transient response and stable loop performance. It provides a fixed 5V output and is housed in a 16-pin TSSOP-EP package.

Feature Summary

• Integrates a high-efficiency 1.5A power switch within the monolithic die
• Utilizes current-mode control architecture for rapid transient response
• Supports wide input voltage ranges up to 60V for flexible system design

Applications

• Industrial point-of-load regulation
• Automotive electronics systems
• Distributed power architectures

Procurement Notes

Verify the specific suffix against official documentation to confirm pinout compatibility and thermal pad requirements. Ensure the selected variant matches the required operating temperature range and packaging style for your PCB layout constraints before finalizing procurement.

Selection Notes

Select this component when a fixed 5V output is required from a high-voltage bus. The integrated 1.5A switch eliminates external MOSFET selection. Verify that the load current does not exceed the internal switch rating and that the input voltage remains within the specified 60V maximum limit.

Part Context

This part belongs to the LT1956 family of high-voltage step-down regulators. It shares architectural similarities with other members like the LT1956IGN-5 but differs in package type and manufacturing lot specifications. The EFE suffix denotes a specific plastic surface-mount package configuration.

Replacement Considerations

LT1956IGN-5#PBF offers equivalent electrical performance in a different SSOP-16 package. Cross-reference datasheets to verify pinout alignment and thermal dissipation characteristics before substituting.