TSR 1-2450E
Overview
The TSR 1-2450E is a high-efficiency non-isolated step-down switching regulator designed to replace inefficient 78xx series linear regulators. This PoL module provides a fixed 5V output at up to 1A from an input voltage range of 7V to 36V. Its 92 percent efficiency significantly reduces heat dissipation, often eliminating the need for a bulky heatsink in space-constrained designs.
Why Choose This Part
This module features a pin-compatible SIP-3 package that allows for direct replacement of linear regulators without PCB redesigns. It offers excellent line and load regulation with built-in short circuit protection, and its wide input range up to 36V provides high tolerance for supply fluctuations.
Applications
Key Specifications
Getting Started
Integration is straightforward as it requires no external capacitors for basic operation, though adding input and output capacitors can further reduce ripple. Ensure the pinout matches your footprint as it follows the standard Vin, GND, Vout configuration. Thermal derating should be considered when operating at the upper limit of the -40 to 85 degree Celsius range.



