3.3V 800mA LDO Voltage Regulator SOT223 SMD

The AZ1117CH-3.3TRG1 from DIODES INC. is a low-dropout (LDO) three-terminal voltage regulator engineered for applications where a stable 3.3V supply is critical, particularly in scenarios demanding excellent transient response and a low minimum input voltage.

This robust device integrates essential protection features, including current limiting and on-chip thermal shutdown. The latter safeguards the regulator against potentially damaging conditions caused by a combination of high current and elevated ambient temperature, ensuring reliable operation. A trimmed bandgap reference circuit guarantees a highly accurate output voltage, maintained within ±1% of the nominal 3.3V.

Key performance characteristics include a typical quiescent current of just 4mA, ensuring high efficiency in low-power states. It offers a high ripple rejection of 70dB, effectively filtering input noise for a cleaner output. The regulator is compatible with low Equivalent Series Resistance (ESR) ceramic capacitors, which contributes to stable operation and simplifies circuit design. Its wide operating junction temperature range of -20°C to +125°C makes it suitable for diverse environments.

Supplied in a compact SOT223 surface-mount package, this regulator is designed for automated assembly processes, making it an ideal choice for high-volume electronic manufacturing.