LT1956IGN#TRPBF

Overview

The LT1956IGN#TRPBF is a high voltage, 1.5A step-down switching regulator from Analog Devices Inc., housed in an SSOP-16 package. It operates with an input voltage range of 5.5V to 60V and provides a fixed 5V output at up to 1.2A. The device features a 500kHz switching frequency and draws 2.5mA of quiescent current. It supports operation within a temperature range of -40°C to +125°C.

Feature Summary

• Integrated high-voltage power switch for direct connection to higher voltage rails
• Fixed internal switching frequency reduces external component count
• Built-in soft-start limits inrush current during startup
• Thermal shutdown protection prevents damage during overload conditions

Applications

• Industrial control systems requiring isolated or non-isolated DC/DC conversion
• Automotive electronics operating on 12V or 24V nominal bus systems
• Distributed power architectures in telecommunications equipment
• Battery-powered devices utilizing high-voltage cell configurations

Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the SSOP-16 footprint matches your PCB layout requirements. Check for any regional distribution restrictions that may affect availability.

Selection Notes

Select this component when a wide input voltage range up to 60V is required alongside moderate output current capabilities. Consider the fixed 500kHz frequency for balancing efficiency and passive size. Evaluate thermal performance given the 125°C maximum junction temperature rating. Compare against synchronous alternatives if higher efficiency at light loads is critical.

Part Context

This part belongs to the LT1956 series of high-voltage buck converters designed by Analog Devices. It complements other regulators in the portfolio offering different voltage outputs or current ratings. The series targets applications needing robust power management in electrically noisy environments.

FAQ

What is the maximum input voltage supported by the LT1956IGN#TRPBF?

The device supports a maximum input voltage of 60V.

Does the LT1956 include overcurrent protection?

Yes, it features cycle-by-cycle current limiting and thermal shutdown protection.