AMS1117-3.3 in AMS1117 Regulators Family
The AMS1117-3.3 is a mainstream fixed-output low dropout (LDO) linear voltage regulator designed to provide a stable 3.3V supply from higher input voltages. Manufactured by various vendors including AMS, EVVO, and others, it is widely utilized for its ability to deliver up to 1A of output current. It features internal thermal overload and short-circuit protection, making it a robust choice for regulating power in sensitive digital circuits and microcontroller-based systems requiring a constant voltage source.
Variants in This Sub-Family
Comparing specs that differ across variants.
| Part Number | PSRR | Voltage - Input (Max) | Voltage Dropout (Max) | Stock |
|---|---|---|---|---|
| AMS1117-3.3 SOT-223 (Shenzhen Slkormicro Semicon Co., Ltd.) | 120Hz | 18V | 1.4V | 24,248 |
| AMS1117-3.3 (EVVO) | 120Hz | 12V | 1.3V | 6,325 |
Variants within the AMS1117-3.3 sub-family are generally distinguished by their packaging and manufacturer-specific tolerance ratings. While the SOT-223 is the most common for compact PCB layouts, TO-252 (DPAK) versions offer better thermal dissipation for higher current applications. Some industrial-grade variants may also offer extended temperature ranges beyond the standard 0 to 125 degrees Celsius, ensuring stability in harsher environments or high-duty-cycle industrial applications.
