STMICROELECTRONICS L78L05ABUTR Fixed 5V Voltage Regulator, 100mA, SOT-89
STMICROELECTRONICS L78L05ABUTR 5V, 100mA fixed linear voltage regulator. 10-30V input, SOT-89 package, with full protection.
The STMICROELECTRONICS L78L05ABUTR is a fixed linear positive voltage regulator from the reliable L78L series, designed to provide a stable 5V DC output from an input voltage range of 10V to 30V.
This regulator incorporates internal current limiting and thermal shutdown protection, making it exceptionally robust and effectively indestructible under typical operating conditions. It serves as an excellent fixed voltage regulator for a wide array of applications, particularly for local or on-card regulation. This approach helps eliminate noise and distribution problems commonly associated with single-point regulation schemes, improving overall system stability.
An efficient alternative to a traditional Zener diode and resistor combination, the L78L05ABUTR offers superior performance with lower quiescent current and reduced output noise. It can also be paired with external power pass elements to construct high-current voltage regulator circuits, adding to its versatility. A significant advantage is that no external components are required for basic operation, simplifying circuit design and reducing board space.
Key Technical Performance
The regulator delivers precise voltage control with a line regulation of 150mV maximum and load regulation of 60mV maximum. It features a typical supply voltage rejection of 49dB and a typical dropout voltage of 2V. The device is packaged in a compact SOT-89-3 surface-mount package, making it ideal for space-constrained PCB designs. It is rated for a continuous output current of up to 100mA and operates reliably across a broad junction temperature range from -40°C to +125°C.
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