3.3V 1A LDO Voltage Regulator, SMD, SOT-223

The AZ1117IH-3.3TRG1 is a low-dropout three-terminal regulator engineered for low-voltage applications where transient response and minimum input voltage are critical. This fixed 3.3V output regulator delivers up to 1A of output current, ensuring reliable performance for a variety of electronic devices.

Featuring current limiting and thermal shutdown protection, the regulator safeguards your circuitry against excessive current and temperature conditions. Its internally trimmed bandgap reference delivers an output voltage accuracy of within ±1%. The thermal shutdown function activates when high current and ambient temperature would cause excessive junction temperature, providing robust reliability.

Key Features

• Fixed 3.3V Output – Stable and precise voltage regulation
• 1A Output Current – Suitable for a wide range of loads
• Low Dropout Voltage – Typical 1.2V, ideal for low-voltage applications
• Low Quiescent Current – Typical 4mA at no load
• High Ripple Rejection – 70dB typical at 120Hz
• Compatible with Low ESR Ceramic Capacitors – Reduces output noise and size
• Built-in Protections – Current limiting and thermal shutdown
• Wide Operating Temperature – -40°C to +125°C
• SOT-223 Package – Surface mount for compact designs

Applications include USB devices, add-on cards, DVD players, and PC motherboards. The regulator is easy to integrate into your design, offering dependable performance in a compact SOT-223 package.