STMicroelectronics L78M05CDT-TR
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | TO-252-3, DPak (2 Leads + Tab), SC-63 |
| Mfr | STMicroelectronics |
| Mounting Type | Surface Mount |
| Operating Temperature | 0°C ~ 150°C |
| Voltage - Input (Max) | 35V |
| Output Type | Fixed |
| Current - Output | 500mA |
| Supplier Device Package | DPAK |
| Output Configuration | Positive |
| Current - Quiescent (Iq) | 6 mA |
| Control Features | - |
| Voltage - Output (Min/Fixed) | 5V |
| Voltage - Output (Max) | - |
| Number of Regulators | 1 |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| PSRR | 62dB (120Hz) |
| Voltage Dropout (Max) | - |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | L78M05 |
| REACH Status | REACH Unaffected |
| Standard Package | 2,500 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
Linear Voltage Regulator IC STMicroelectronics L78M05CDT-TR
The L78M05CDT-TR from STMicroelectronics is a positive voltage regulator designed to deliver a fixed 5V output with a maximum current of 500mA. This linear regulator operates with an input voltage range of 7V to 35V, making it suitable for a wide variety of applications. The device features thermal overload protection and short-circuit protection, ensuring reliable operation under various conditions. Housed in a TO-252 (DPAK) package, the L78M05CDT-TR offers good thermal performance and is compatible with surface-mount assembly processes. With its low dropout voltage and low quiescent current, this regulator is ideal for powering microcontrollers, sensors, and other low-power digital circuits in industrial, automotive, and consumer applications.
The L78M05CDT-TR provides high accuracy (±2% output voltage tolerance) and low output noise, making it suitable for precision applications. It includes built-in thermal shutdown to prevent damage from excessive heat and short-circuit protection to safeguard connected components. The regulator maintains stable operation with minimal external components, requiring only input and output capacitors for most applications. Its wide operating temperature range (-40°C to +125°C) ensures reliable performance in harsh environments. Additionally, the device offers low dropout voltage (typically 2V at full load), enabling efficient operation even when the input voltage is close to the output level.
This voltage regulator is commonly used in power supplies for industrial control systems, automotive electronics, and consumer appliances. It serves as an excellent choice for providing stable 5V power to microcontrollers (such as STM32 series), sensor modules, and communication interfaces (UART, I2C, SPI). The L78M05CDT-TR is also widely employed in battery-powered devices, embedded systems, and test and measurement equipment where reliable voltage regulation is critical. Its robust design makes it suitable for harsh industrial environments, including factory automation and process control systems.
Compared to similar linear regulators, the L78M05CDT-TR offers superior reliability with its comprehensive protection features and wide operating temperature range. The TO-252 package provides excellent thermal performance, allowing for higher power dissipation without requiring additional heatsinks in many applications. Its simple implementation (requiring only two capacitors) reduces design complexity and BOM cost. STMicroelectronics' strict quality control ensures consistent performance, making this regulator a trusted choice for mission-critical applications. The device's low quiescent current helps minimize power consumption in battery-operated systems, while its stable output under varying loads makes it ideal for powering sensitive digital circuits.
