5 PCS AMS1117-1.2 Low Dropout Linear Voltage Regulator 1.2V 1A SOT-223

5 PCS AMS1117-1.2 Low Dropout Linear Voltage Regulator 1.2V 1A SOT-223
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  • Product Code:SQ9824
  • Availability: 1000
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Tags: AMS1117, AMS1117-1.2, voltage regulator, LDO regulator, 1.2V regulator, SOT-223 regulator, linear voltage regulator, low dropout regulator, 1A voltage regulator, fixed voltage regulator

The AMS1117-1.2 is a low dropout (LDO) linear voltage regulator designed to provide a stable 1.2V fixed output voltage from an input supply of up to 18V. Part of the AMS1117 series, this regulator can deliver up to 1A of output current and is housed in the industry-standard SOT-223 power package. Unlike PNP-type regulators where up to 10% of the output current is wasted as quiescent current, the quiescent current of the AMS1117 enters the load, resulting in improved efficiency and reduced power loss during operation.

The AMS1117-1.2 features on-chip precision trimming that adjusts the reference/output voltage to within ±2%, ensuring accurate and consistent voltage regulation for sensitive electronic circuits. On-chip thermal limiting provides protection against overload conditions and excessive junction temperatures, safeguarding both the regulator and the connected load. The device requires a minimum output capacitor of 10µF tantalum for improved transient response and stability, and the dropout voltage is typically 1.1V at 1A load.

This voltage regulator IC is widely used for voltage regulation in electronic circuits, power supply for microcontrollers and other low-voltage devices, post-regulation for switching DC/DC converters, and general-purpose voltage regulation in embedded systems. With an operating junction temperature range of -40°C to +125°C and a maximum input voltage of 18V, the AMS1117-1.2 performs reliably in demanding environments. The component is available in a pack of 5 pieces, making it convenient for prototyping, production, and repair applications.

AMS1117 low dropout regulator Application

  1. Voltage regulation in electronic circuits
  2. Power supply for microcontrollers and low-voltage devices
  3. Post-regulator for switching DC/DC converters
  4. High-efficiency linear regulator designs
  5. Battery chargers
  6. PC add-on cards and motherboard clock supplies
  7. LCD monitors and set-top boxes
  8. General-purpose voltage regulation in embedded systems

AMS1117 low dropout regulator Specifications

  1. Product Model: AMS1117-1.2
  2. Component Type: Low dropout (LDO) linear voltage regulator
  3. Output Voltage: 1.2V (fixed)
  4. Output Voltage Accuracy: ±2%
  5. Maximum Output Current: 1A
  6. Maximum Input Voltage: 18V
  7. Dropout Voltage: 1.1V at 1A load (typical)
  8. Line Regulation: 0.2% (typical)
  9. Load Regulation: 0.5% (maximum)
  10. Quiescent Current: 5mA (typical)
  11. Ripple Rejection: 60-75dB at 120Hz
  12. Minimum Load Current: 3-10mA
  13. Package Type: SOT-223 (3+tab pins)
  14. Pin Configuration: Pin 1: GND/ADJ, Pin 2: VOUT, Pin 3: VIN
  15. Operating Junction Temperature: -40°C to +125°C
  16. Storage Temperature: -65°C to +150°C
  17. Thermal Protection: On-chip thermal limiting
  18. Recommended Output Capacitor: 10µF tantalum (minimum)
  19. Packaging: Pack of 5 pieces

Features

  1. Low dropout voltage of 1.1V at 1A load
  2. Fixed 1.2V output voltage with ±2% accuracy
  3. Maximum output current of 1A
  4. Maximum input voltage of 18V
  5. On-chip precision trimming for accurate voltage regulation
  6. On-chip thermal limiting protection
  7. Load regulation of 0.5% maximum
  8. Line regulation of 0.2% typical
  9. Quiescent current enters the load for improved efficiency
  10. Ripple rejection of 60-75dB at 120Hz
  11. Industry-standard SOT-223 power package
  12. Requires only 10µF tantalum output capacitor for stability
  13. Operating junction temperature range: -40°C to +125°C
  14. Available in a convenient pack of 5 pieces

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