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TSR 1-2450E

TSR 1-2450E

Traco Power
Non-Isolated PoL Module DC DC Converter 1 Output 5V 1A 7V - 36V Input
Active4,536 in stock

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

Linear Regulator Replacement
Drop-in upgrade for standard TO-220 LM7805 regulators to improve thermal performance and efficiency.
Industrial Control Systems
Provides stable 5V logic power from standard 12V or 24V industrial DC rails.
Distributed Power Architectures
Local point-of-load regulation in systems where a high-voltage bus must be stepped down for digital circuitry.
Battery Powered Equipment
Extends battery life by minimizing power loss during voltage conversion compared to linear alternatives.

Key Specifications

Type Non-Isolated PoL Module
Efficiency 92%
Applications ITE (Commercial)
Mounting Type Through Hole
Package / Case 3-SIP Module
Size / Dimension 0.46" L x 0.30" W x 0.40" H (11.6mm x 7.5mm x 10.2mm)
Number of Outputs 1
Voltage - Output 1 5V
Operating Temperature -40degC ~ 85degC (With Derating)
Voltage - Input (Max) 36V
Voltage - Input (Min) 7V
Current - Output (Max) 1A

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.

Also Consider

OKI-78SR-5/1.5-W36-C Murata Power Solutions - Offers a higher 1.5A output current capability in a similar vertical SIP package.
R-78E5.0-1.0 RECOM Power - A widely available 1A switching regulator with a slightly smaller low-profile package.