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AMS1117 Voltage Regulator IC 1.8V

SKU: FSAEZ34UU2
The AMS1117-1.8 is a fixed-output 1.8V Low Dropout (LDO) Voltage Regulator IC designed to provide a stable and regulated 1.8V output from a higher DC input voltage source. It is widely used in low-voltage digital electronics, microcontrollers, memory devices, wireless communication modules, FPGA circuits, and embedded systems that require a reliable 1.8V power rail. The regulator can deliver up to...
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Specifications

Specifications:

IC Type: Low Dropout (LDO) Voltage Regulator
Model: AMS1117-1.8
Output Voltage: 1.8V Fixed
Output Current: Up to 800mA–1A
Input Voltage Range: 3V – 15V DC
Maximum Input Voltage: 15V DC
Dropout Voltage: Typically 1.1V, Maximum 1.3V
Output Accuracy: ±1%
Line Regulation: Typically 0.2%
Load Regulation: Typically 0.4%
Quiescent Current: Typically 5mA – 10mA
Ripple Rejection (PSRR): Up to 70–75dB
Protection Features: Thermal Shutdown, Current Limiting
Operating Temperature: -40°C to +125°C
Storage Temperature: -65°C to +150°C
Package Type: SOT-223
Mounting Type: Surface Mount (SMD)

Additional Resources

AMS1117.PDF

FAQ

1. What is the AMS1117-1.8 Voltage Regulator used for?

The AMS1117-1.8 is used to convert a higher DC voltage into a stable 1.8V output for powering processors, memory devices, sensors, communication modules, and embedded electronics.

2. What output voltage does the AMS1117-1.8 provide?

The AMS1117-1.8 delivers a fixed and regulated output voltage of 1.8V DC.

3. How much current can the AMS1117-1.8 supply?

The regulator can provide up to 800mA to 1A output current when operated within its specified thermal limits.

4. What is the minimum input voltage required for the AMS1117-1.8?

The regulator typically requires an input voltage of approximately 3V or higher to maintain a stable 1.8V output due to its dropout voltage characteristics.

5. Does the AMS1117-1.8 include built-in protection features?

Yes, the AMS1117-1.8 includes thermal shutdown and current limiting protection to help safeguard both the regulator and connected circuits from overheating and overload conditions.

View full product details

The AMS1117-1.8 is a fixed-output 1.8V Low Dropout (LDO) Voltage Regulator IC designed to provide a stable and regulated 1.8V output from a higher DC input voltage source. It is widely used in low-voltage digital electronics, microcontrollers, memory devices, wireless communication modules, FPGA circuits, and embedded systems that require a reliable 1.8V power rail. The regulator can deliver up to 800mA to 1A output current while maintaining excellent line and load regulation.

The AMS1117-1.8 features low dropout voltage, allowing efficient operation even when the input voltage is only slightly higher than the output voltage. Built-in thermal shutdown and current limiting protection ensure safe and dependable operation. Its compact SOT-223 package makes it ideal for space-constrained PCB designs and development boards.

Key Features

  • Fixed 1.8V output voltage
  • Low Dropout (LDO) regulator design
  • Output current up to 800mA–1A
  • Low dropout voltage (typically 1.1V–1.3V)
  • Built-in thermal overload protection
  • Internal current limiting protection
  • Excellent line and load regulation
  • High output voltage accuracy
  • Suitable for low-voltage digital circuits
  • Requires minimal external components
  • Compact SOT-223 package
  • Stable and reliable operation
  • Ideal for embedded systems and communication modules
  • Low noise output for sensitive electronics