EmbeddedRelated.com
    Parts    TSR 0.5-2433SM
TSR 0.5-2433SM

TSR 0.5-2433SM

Traco Power
Linear Regulator Replacement DC DC Converter 1 Output 3.3V 500mA 4.75V - 32V Input
Active12 in stock
Datasheet Digi-Key Compare Prices

Overview

The TSR 0.5-2433SM is a high-efficiency switching regulator designed to serve as a pin-compatible, drop-in replacement for inefficient 78xx series linear regulators. This non-isolated DC/DC converter provides a stable 3.3V output at 500mA from a wide input range of 4.75V to 32V. Its surface-mount design and high efficiency of up to 91 percent eliminate the need for bulky heatsinks, saving significant board space in compact designs.

Why Choose This Part

The module features internal capacitors and continuous short-circuit protection, requiring no external components for standard operation. Its wide input range up to 32V and remote On/Off capability provide flexibility for power sequencing and energy management. By operating at high efficiency, it maintains a low thermal profile, which simplifies PCB layout and thermal management in dense SMD environments.

Applications

Point-of-Load Regulation
Providing local 3.3V power from higher voltage system rails in ITE and commercial electronics.
Battery-Powered Systems
Utilizing high efficiency and low standby current (35 uA) to extend the operational life of portable devices.
Industrial Control Logic
Replacing linear regulators in control boards to reduce thermal dissipation and improve overall system reliability.

Key Specifications

Type Linear Regulator Replacement
Features Remote On/Off, OTP, SCP
Efficiency 91%
Applications ITE (Commercial)
Mounting Type Surface Mount
Power (Watts) 1.7 W
Package / Case 10-SMD Module
Size / Dimension 0.60" L x 0.38" W x 0.36" H (15.3mm x 9.6mm x 9.2mm)
Number of Outputs 1
Voltage - Output 1 3.3V
Operating Temperature -40degC ~ 90degC (With Derating)
Voltage - Input (Max) 32V
Voltage - Input (Min) 4.75V
Current - Output (Max) 500mA

Getting Started

Integrate the 10-SMD module using standard SMT reflow processes according to the recommended footprint. For custom output requirements, use the trim pin to adjust the output voltage within the 3.0V to 5.5V range. Ensure the remote On/Off pin is correctly biased if the standby mode is required for power savings.

TSR 0.5-2433 Family

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

Part Number Features Package Size / Dimension Stock
TSR 0.5-2433SM (this part) Remote On/Off, OTP.. SMD-10 0.60" L x 0.38" W .. 12
TSR 0.5-2433 OTP, SCP SIP-3 0.45" L x 0.30" W .. 1,260

Also Consider

R-78E3.3-0.5 RECOM Power - A cost-effective 0.5A switching regulator alternative with a SIP-3 footprint for through-hole applications.