STMicroelectronics LF25CDT-TR Linear Voltage Regulator
- Brand: STMicroelectronics
- Product Code: LF25CDT-TR
- Availability: In Stock
$0.35
- Ex Tax: $0.35
STMicroelectronics LF25CDT-TR: Precision Power Management in Compact DPAK Packaging
Engineered for reliability in modern electronic systems, the LF25CDT-TR from STMicroelectronics represents a new standard in linear voltage regulation technology. This fixed-output regulator delivers precise 2.5V voltage conversion with exceptional stability, making it ideal for applications demanding consistent power performance in space-constrained designs.
At its core, this DPAK packaged IC combines high current capacity (500mA) with remarkably low dropout voltage (0.7V @ 500mA load), enabling efficient operation even in battery-powered systems where input voltage fluctuates. The device's 16V maximum input rating provides design flexibility across various power architectures, while its thermal shutdown and overcurrent protection features ensure robust operation in demanding environments.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Output Voltage | 2.5V (Fixed) |
| Output Current | 500mA |
| Dropout Voltage | 0.7V @ 500mA |
| Quiescent Current | 1mA |
| PSRR | 82dB ~ 65dB (120Hz ~ 10kHz) |
| Operating Temperature | -40°C ~ 125°C |
The LF25CDT-TR's surface-mount DPAK (TO-252-3) package combines thermal efficiency with space-saving design, making it particularly suitable for portable electronics and automotive applications. Its 12mA maximum supply current consumption supports energy-efficient designs meeting modern environmental standards, while the wide operating temperature range (-40°C to 125°C) ensures reliability in industrial environments.
This linear regulator excels in noise-sensitive applications thanks to its superior power supply rejection ratio (PSRR). The 82dB at 120Hz dropping to 65dB at 10kHz effectively filters out power supply noise, making it ideal for audio circuits, precision sensors, and RF modules where signal integrity is critical. Compared to switching regulators, the LF25CDT-TR offers simpler implementation with fewer external components, reducing design complexity and bill-of-materials costs.
STMicroelectronics' proprietary manufacturing processes ensure consistent performance across production batches. The device's inherent design advantages include fast transient response, excellent load regulation, and minimal output voltage variation under changing operating conditions. These characteristics make it particularly valuable in applications such as:
- Industrial control systems
- Consumer electronics power rails
- Telecom infrastructure equipment
- Automotive sensor modules
- Medical instrumentation
When integrating the LF25CDT-TR into new designs, engineers benefit from its inherent stability requiring minimal external capacitance. The device maintains regulation across a wide range of output capacitive loads, simplifying PCB layout and reducing component count. Designers should note the importance of proper thermal management given the device's surface-mount configuration, particularly at maximum current ratings.
The LF25CDT-TR joins STMicroelectronics' comprehensive portfolio of power management solutions, offering designers a reliable choice for precision voltage regulation. Its combination of performance characteristics, robust protection features, and proven reliability makes it a preferred solution for engineers developing next-generation electronic systems across multiple industries.
Tags: Linear Regulator, Voltage Stabilizer, Power Management, Electronic Components, Semiconductors