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AMS1117 Voltage Regulator IC 1.2V

The AMS1117-1.2 is a fixed-output 1.2V Low Dropout (LDO) Voltage Regulator IC designed to provide a stable and regulated 1.2V output from a higher input voltage source. It is commonly used in low-voltage digital systems, FPGA core supplies, DSP circuits, memory devices, processors, and embedded electronics requiring a precise 1.2V power rail. Capable of delivering up to 1A output current,...
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Specifications

Specifications:

IC Type: Low Dropout (LDO) Voltage Regulator
Model: AMS1117-1.2
Output Voltage: 1.2V Fixed
Output Current: Up to 1A
Input Voltage Range: 2.5V – 15V DC
Maximum Input Voltage: 15V DC
Dropout Voltage: Typically 1.1V, Maximum 1.3V @ 1A
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 AMS1117-1.2 Voltage Regulator used for?

The AMS1117-1.2 is used to convert a higher DC voltage into a stable 1.2V output for powering processors, FPGA cores, memory devices, sensors, and other low-voltage electronic circuits.

2. What output voltage does the AMS1117-1.2 provide?

The AMS1117-1.2 delivers a fixed and regulated output voltage of 1.2V DC.

3. How much current can the AMS1117-1.2 supply?

The regulator can provide up to 1A output current when operated within its specified thermal limits and with adequate heat dissipation.

4. What is the minimum input voltage required for the AMS1117-1.2?

The regulator typically requires an input voltage of approximately 2.5V or higher to maintain a stable 1.2V output due to its dropout voltage characteristics.

5. Does the AMS1117-1.2 include built-in protection features?

Yes, the AMS1117-1.2 includes thermal shutdown and current limiting protection to safeguard both the regulator and connected circuits from overheating and overload conditions.

View full product details

The AMS1117-1.2 is a fixed-output 1.2V Low Dropout (LDO) Voltage Regulator IC designed to provide a stable and regulated 1.2V output from a higher input voltage source. It is commonly used in low-voltage digital systems, FPGA core supplies, DSP circuits, memory devices, processors, and embedded electronics requiring a precise 1.2V power rail.

Capable of delivering up to 1A output current, the AMS1117-1.2 combines excellent line and load regulation with low dropout voltage, making it suitable for applications where efficiency and voltage stability are critical. The regulator incorporates built-in thermal shutdown and current limiting protection to ensure reliable and safe operation.

Housed in a compact SOT-223 package, the AMS1117-1.2 is widely used in development boards, communication equipment, industrial electronics, and portable devices requiring dependable low-voltage

Key Features

  • Fixed 1.2V output voltage
  • Low Dropout (LDO) regulator design
  • Output current up to 1A
  • Low dropout voltage operation
  • 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 performance
  • Low noise output
  • Ideal for embedded and communication systems