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AMS1117-1.8
+Lista de MateriaisIC REG LINEAR 1.8V 1A SOT-223-3L
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FabricanteEVVO
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Peça do Fabricante #AMS1117-1.8
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Ficha Técnica AMS1117-1.8 DataSheet
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Especificações
| Atributo | Valor |
| Series | AMS1117 |
| Part Status | Active |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 12V |
| Voltage - Output (Min / Fixed) | 1.8V |
| Voltage Dropout (Max) | 1.3V @ 1A |
| Current - Output | 1A |
| Current - Quiescent (Iq) | 10 mA |
| PSRR | 75dB (120Hz) |
| Control Features | Current Limit |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | TO-261-4, TO-261AA |
| Supplier Device Package | SOT-223-3L |
Visão Geral
Description
This regulator features a low dropout voltage, typically around 1.1V at full load, meaning it requires a minimal difference between input and output voltages to maintain regulation. It also includes internal current limiting and thermal shutdown protection, ensuring the device's safety under overcurrent or overheating conditions.
The AMS1117-1.8 is available in various package types, including SOT-223, TO-252, and SO-8, providing flexibility in design choices. Its simple design requires minimal external components, usually just a couple of capacitors for stability and noise reduction. This makes it an ideal choice for cost-effective, space-constrained applications needing reliable voltage regulation.
Equivalent
Features
1. Output Voltage: Fixed at 1.8V.
2. Dropout Voltage: Typically about 1.1V at full load of 800mA, which is low compared to many other regulators.
3. Current Capability: Can source up to 1A output current with proper heat dissipation.
4. Quiescent Current: Low quiescent current, ensuring efficient operation.
5. Thermal Protection: Comes with built-in thermal overload protection to prevent damage from excessive heat.
6. Overcurrent Protection: Safeguards against short circuits and overcurrent conditions.
7. Temperature Range: Typically operates within a range of -40°C to +125°C.
8. Package Options: Available in various packages like SOT-223, TO-252, etc., for different applications.
9. Stability: Requires only a few external components to maintain output stability.
These features make the AMS1117-1.8 suitable for use in battery-powered devices, microcontroller systems, and other applications needing a steady 1.8V power supply.
Pinout
1. Pin 1 (Adjust/Ground):
- For the fixed output version like the AMS1117-1.8, this pin is connected to ground.
2. Pin 2 (Output):
- This pin provides the regulated 1.8V output voltage.
3. Pin 3 (Input):
- This pin is connected to the input voltage, which should be higher than the desired 1.8V output and within the specified input range for optimal performance.
The AMS1117 series, including the 1.8V variant, is used for providing a stable 1.8V output from a higher input voltage in various electronic applications, ensuring low dropout and providing a consistent power supply to components requiring a 1.8V input.
Manufacturer
Application
1. Microcontroller Power Supply: Providing a stable 1.8V supply for microcontrollers and digital ICs.
2. Consumer Electronics: Used in devices like smartphones, tablets, and cameras for power management.
3. Networking Equipment: Powers components in routers, switches, and modems.
4. Embedded Systems: Supplies power in various embedded systems and IoT devices.
5. Communication Devices: Supports a stable voltage for communication interfaces and modules.
Its low dropout voltage and high precision make it suitable for battery-powered and portable applications.