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TSR 0.5-2415

TSR 0.5-2415

Traco Power
Linear Regulator Replacement DC DC Converter 1 Output 1.5V 500mA 4.75V - 32V Input
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Overview

The TSR 0.5-2415 is a non-isolated DC/DC step-down switching regulator designed as a high-efficiency replacement for traditional TO-220 linear regulators. It accepts a wide input voltage range from 4.75V up to 32V and provides a stable 1.5V output at 500mA. Because it is a switching regulator, it eliminates the need for bulky heatsinks even at high input-to-output voltage differentials.

Why Choose This Part

The primary advantage is the 97 percent peak efficiency which allows the module to operate at full load up to +90 degrees Celsius without a heatsink. It features integrated short-circuit and over-temperature protection in a compact 3-pin SIP package that matches the footprint of standard linear regulators. The low standby current and wide input range make it versatile for both 12V and 24V nominal systems.

Applications

Linear Regulator Retrofitting
Directly replaces 78xx series linear regulators in existing PCB designs to improve thermal performance without layout changes.
Point-of-Load Regulation
Provides efficient 1.5V power to low-voltage digital ICs and microcontrollers from a higher voltage system bus.
Industrial Control Systems
Utilizes the wide 32V input range to regulate standard 24V industrial rails down to logic levels for sensors and controllers.
Battery Powered Devices
Extends battery life in portable applications by achieving up to 97 percent efficiency compared to the energy wasted as heat in linear alternatives.

Key Specifications

Type Linear Regulator Replacement
Features OTP, SCP
Efficiency 97%
Applications ITE (Commercial)
Mounting Type Through Hole
Power (Watts) 7.5 W
Package / Case 3-SIP Module
Size / Dimension 0.45" L x 0.30" W x 0.40" H (11.5mm x 7.6mm x 10.2mm)
Number of Outputs 1
Voltage - Output 1 15V
Operating Temperature -40degC ~ 90degC (With Derating)
Voltage - Input (Max) 32V
Voltage - Input (Min) 18V
Current - Output (Max) 500mA

Getting Started

Integration requires only the standard three pins: Input, Ground, and Output. While the module is functional without external capacitors, adding low-ESR capacitors close to the pins is recommended to reduce ripple and improve transient response. Ensure the input voltage stays within the 4.75V to 32V range for stable operation.

TSR 0.5-2415 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Package Features Efficiency Power (Watts) Size / Dimension Voltage - Output 1 Stock
TSR 0.5-2415 (this part) SIP-3 OTP, SCP 97% 7.5 W 0.45" L x 0.30" W .. 15V —
TSR 0.5-2415SM SMD-10 Remote On/Off, OTP.. 73% 750 m 0.60" L x 0.38" W .. 1.5V —