AMS1117 3.3V 1A Low Dropout Regulator SOT-223
Regular price
Rs.25.00
Sale price
Rs.35.00
AMS1117 3.3V — 1A Low-Dropout Linear Regulator for Stable 3.3V Power
The AMS1117 3.3V is a low-dropout linear regulator developed to provide a stable 3.3V output for embedded, digital, and industrial electronics. It supports up to 1A continuous current and maintains regulated performance in applications such as microcontrollers, Arduino-compatible boards, IoT modules, FPGAs, CPLDs, and sensor interfaces. Its SOT-223 package offers compact installation for high-density PCB layouts.
The regulator integrates thermal shutdown and current-limit protection to maintain safe operation under overload or elevated temperature conditions. It operates within a junction temperature range of –40°C to +125°C and accepts input voltages within the recommended limit up to 12V (18V absolute maximum). A typical dropout of approximately 1.2V at full load supports designs requiring efficient step-down conversion with predictable performance.
The AMS1117 3.3V offers fixed-output accuracy of approximately ±1.5% (typical), low quiescent current, and stable operation when used with the recommended 22µF output capacitor. Its electrical characteristics and protection features support consistent behavior in embedded, battery-based, and logic-level power systems.
Key Specs
| Parameter | Value |
|---|---|
| Output Voltage | 3.3V fixed |
| Maximum Output Current | 1A continuous |
| Input Voltage Range | Recommended up to 12V (18V absolute max) |
| Dropout Voltage | ~1.2V typical at 1A (max ≈ 1.3V) |
| Output Voltage Accuracy | ±1.5% typical |
| Quiescent Current | ~5mA typical |
| Ripple Rejection | ~60–75 dB @ 120Hz (VIN–VOUT = 3V) |
| Thermal Shutdown | ~150°C |
| Current Limit | ~2.1A to 2.5A |
| Operating Junction Temperature | –40°C to +125°C |
| Recommended Output Capacitor | 22µF Tantalum |
| Package | SOT-223 |
| Protection Features | Thermal shutdown, current limiting |
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