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TSR 2-2450

TSR 2-2450

Traco Power
Linear Regulator Replacement DC DC Converter 1 Output 5V 2A 6.5V - 36V Input
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Overview

The TSR 2-2450 is a high-efficiency non-isolated step-down switching regulator designed to be a pin-compatible replacement for standard LM78xx linear regulators in the 3-pin SIP package. It provides a fixed 5V output at up to 2A from an input voltage range of 6.5V to 36V. Unlike linear regulators, this module operates at up to 93 percent efficiency, eliminating the need for a bulky heatsink even at full load.

Why Choose This Part

This module offers a significant efficiency advantage over linear regulators, reaching 93 percent, which allows for a compact 0.55 inch by 0.30 inch footprint without a heatsink. It features a low standby current of only 1mA and maintains a wide input range up to 36V, making it robust against voltage spikes in industrial environments.

Applications

Linear Regulator Retrofitting
Drop-in replacement for TO-220 linear regulators to reduce heat generation and improve system reliability.
Industrial Logic Power
Converting 24V industrial rails down to 5V for microcontrollers and sensors without significant power waste.
Distributed Power Architectures
Point-of-load regulation in commercial ITE equipment where space is limited and thermal management is critical.
Battery Powered Systems
Extending battery life in portable devices by minimizing energy lost as heat during voltage conversion.

Key Specifications

Type Non-Isolated PoL Module
Efficiency 93%
Applications ITE (Commercial)
Mounting Type Through Hole
Power (Watts) 10 W
Package / Case 3-SIP Module
Standard Number 62368-1
Size / Dimension 0.55" L x 0.30" W x 0.40" H (14.0mm x 7.5mm x 10.1mm)
Number of Outputs 1
Voltage - Output 1 5V
Operating Temperature -40degC ~ 90degC
Voltage - Input (Max) 36V
Voltage - Input (Min) 6.5V
Current - Output (Max) 2A

Getting Started

Integration is straightforward as the 3-pin SIP package follows the standard Vin-GND-Vout pinout of 78xx regulators. For optimal performance, place low-ESR capacitors close to the input and output pins as recommended in the Traco Power documentation, though the module is often functional without external filters in basic applications.

Also Consider

OKI-78SR-5/1.5-W36-C Murata Power Solutions - Offers a similar 78xx footprint but with a slightly lower 1.5A maximum output current.
TSR 1-2450 Traco Power - A pin-compatible 1A version for applications where 2A is not required, offering a smaller physical volume.

Categories

Power Management > DC-DC Converters