Overview Of This AMS1117 Surface Mount (SMD) Voltage Regulator IC
The AMS1117 is a series of low dropout voltage regulator ICs designed to provide a stable output voltage from a higher input voltage source. The SMD version is intended for surface-mount applications, making it suitable for compact electronic designs.
Application:
Voltage regulation is essential in various electronic circuits to ensure that sensitive components receive a stable and reliable voltage supply. The AMS1117 SMD Voltage Regulator IC is commonly used in:
- Battery-powered devices
- Portable electronics
- Embedded systems
- Power supplies
- Microcontroller circuits
- Voltage regulation for analog circuits
Development:
The AMS1117 Voltage Regulator IC can be easily integrated into circuit designs using surface-mount technology (SMT). Designers typically include it in their PCB layout, ensuring proper placement and connection of input and output capacitors for stability and noise reduction.
Specifications:
| Specification | Details |
|---|---|
| Input Voltage Range | Varies depending on the specific variant (e.g., up to 15V) |
| Output Voltage Options | Available in various fixed output voltage options (e.g., 1.8V, 2.5V, 3.3V, 5.0V) |
| Dropout Voltage | Typically around 1.1V at full load |
| Output Current | Available in different current ratings (e.g., 1A, 800mA, 500mA) |
| Package Type | Surface-mount package (e.g., SOT-223, SOT-89) |
| Temperature Range | Typically -40°C to 125°C |
| Accuracy | Output voltage accuracy within a certain percentage (e.g., ±1%) |
| Current Limiting | Built-in current limiting and thermal shutdown protection |
| Output Voltage Noise | Low output voltage noise |
| Features | Low dropout, stable output, thermal and short circuit protection, compact size, easy integration |
Features:
- Low Dropout: The AMS1117 has a low dropout voltage, enabling it to regulate the output voltage even when the input voltage is only slightly higher.
- Stable Output: Provides a stable and accurate output voltage, essential for powering sensitive electronic components.
- Thermal Protection: Incorporates thermal shutdown protection to prevent damage due to overheating.
- Short Circuit Protection: Built-in current limiting protects the regulator and downstream components from damage in case of a short circuit.
- Compact Size: Surface-mount package allows for compact and space-efficient designs.
- Easy Integration: Suitable for automated assembly processes, simplifying PCB assembly and manufacturing.
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