EVVO AMS1117-3.3
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.12 | $0.12 |
| 15+ | $0.12 | $1.80 |
| 25+ | $0.12 | $3.00 |
| 50+ | $0.11 | $5.50 |
| 100+ | $0.10 | $10.00 |
| N+ | $0.02 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | EVVO |
| Product Series | |
| Packaging | Tape & Reel (TR) | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 12V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 1.3V @ 1A |
| Current - Output | 1A |
| Current - Quiescent (Iq) | 10 mA |
| Current - Supply (Max) | - |
| PSRR | 75dB (120Hz) |
| Control Features | Current Limit |
| Protection Features | Over Temperature |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-261-4, TO-261AA |
| Supplier Device Package | SOT-223-3L |
| ROHS |
The AMS1117-3.3 from UMW is a popular, cost-effective low-dropout linear regulator designed to deliver a fixed 3.3V output. It is capable of sourcing up to 1A of load current, making it a versatile choice for powering a wide range of digital and analog circuits. The device features a low dropout voltage of 1.3V at full load and includes internal current limiting and thermal protection. Its SOT-223 package is easy to solder and widely used in hobbyist and commercial designs, offering a reliable and simple solution for 5V to 3.3V conversion.
- High Current Capacity: The 1A output current capability is sufficient for power-hungry modules like Wi-Fi SoCs and multiple sensors simultaneously.
- Cost-Effective Solution: Offers a low-cost, reliable method for generating a 3.3V rail, making it a staple in high-volume consumer electronics.
- Excellent Ripple Rejection: With 75dB PSRR at 120Hz, it effectively smooths out AC ripple from rectified mains, providing a clean DC supply.
- Easy to Use: Requires only two external capacitors for stable operation, simplifying PCB layout and design.
Arduino and MCU Boards
The 3.3V output and 1A current capability make it a standard choice for powering microcontrollers, sensors, and logic level shifters on popular development boards like Arduino and Raspberry Pi Pico.
FPGA Core Supplies
Provides a stable 3.3V I/O rail for FPGAs and CPLDs, handling the transient current demands of digital logic while maintaining a clean supply voltage.
Wireless Modules (Wi-Fi/Bluetooth)
Powers ESP8266, ESP32, and nRF24 series modules, which require a stable 3.3V supply with sufficient current headroom for RF transmission peaks.
LED Display Drivers
Regulates a 5V bus down to 3.3V for LED matrix drivers and shift registers, ensuring consistent brightness and preventing logic errors in large displays.
Consumer Electronics
Used in set-top boxes, routers, and smart home hubs to generate a local 3.3V rail for peripheral ICs, offering a cost-effective power solution.
Battery Charging Circuits
Provides a regulated 3.3V supply for battery management ICs and fuel gauges in portable devices, ensuring accurate monitoring and safe charging.
- Q: What is the output voltage of the AMS1117-3.3?
- A: It provides a fixed output voltage of 3.3V.
- Q: What is the maximum output current?
- A: It can deliver a maximum output current of 1A.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 1.3V at a 1A load.
- Q: What is the quiescent current?
- A: The quiescent current is typically 10 mA.
- Q: What is the PSRR performance?
- A: It offers a power supply rejection ratio of 75dB at 120Hz.
- Q: What package is the AMS1117-3.3 available in?
- A: It is commonly available in the SOT-223-3L package.
- Q: What is the output voltage of the AMS1117-3.3?
- A: It provides a fixed output voltage of 3.3V.
- Q: What is the maximum output current?
- A: It can deliver a maximum output current of 1A.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 1.3V at a 1A load.
- Q: What is the quiescent current?
- A: The quiescent current is typically 10 mA.
- Q: What is the PSRR performance?
- A: It offers a power supply rejection ratio of 75dB at 120Hz.
- Q: What package is the AMS1117-3.3 available in?
- A: It is commonly available in the SOT-223-3L package.

AMS1117-3.3.pdf