TSR 1-2450SM
Overview
The TSR 1-2450SM is a high-efficiency switching regulator designed to be a pin-compatible, drop-in replacement for inefficient 78xx series linear regulators. This non-isolated DC-DC converter provides a stable 5V output at up to 1A from a wide input range of 6.5V to 36V. Its surface-mount design and integrated filter capacitors eliminate the need for external heatsinks and most external components.
Why Choose This Part
The primary advantage is its 94 percent efficiency, which significantly reduces heat dissipation and eliminates the requirement for bulky heatsinks. It features built-in short circuit protection and excellent line and load regulation to protect sensitive downstream components. The small SMD footprint and low standby current make it ideal for modern, compact, and energy-conscious electronic designs.
Applications
Key Specifications
Getting Started
To implement the TSR 1-2450SM, ensure the PCB layout accommodates the 10-SMD module footprint and provide adequate copper for thermal relief despite the high efficiency. While it includes internal filter capacitors, adding external low-ESR capacitors close to the pins can further improve transient response in high-noise environments. Consult the datasheet for specific reflow soldering profiles to avoid damaging the internal components of the module.
TSR 1-2450 Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | Type | Efficiency | Package | Size / Dimension | Voltage - Input (Min) | Stock |
|---|---|---|---|---|---|---|
| TSR 1-2450SM (this part) | Linear Regulator R.. | 94% | SMD-10 | 0.60" L x 0.37" W .. | 6.5V | 3,562 |
| TSR 1-2450 | Non-Isolated PoL M.. | 92% | SIP-3 | 0.46" L x 0.30" W .. | 7V | 45,137 |
