AMS1117 1.5V Low Dropout Voltage Regulator SOT-223

AMS1117 1.5V Low Dropout Voltage Regulator SOT-223 is a fixed output linear voltage regulator designed to provide a stable 1.5V output from a higher input voltage. It is widely used in low-voltage digital and embedded systems requiring efficient regulation with minimal dropout. Its SOT-223 package allows compact surface mounting in space-constrained circuits.

Key Features:

• Fixed 1.5V Output: Provides regulated 1.5V with high accuracy.
• Low Dropout Voltage: Operates with input voltages just above the output voltage.
• Output Current: Supports up to 1A continuous load current.
• Thermal Overload Protection: Built-in thermal shutdown for safe operation.
• Short Circuit Protection: Prevents damage during output short conditions.

Technical Specifications:

• Output Voltage: 1.5V (fixed)
• Output Current: Up to 1A
• Input Voltage Range: 2.6V to 15V
• Dropout Voltage: Typically 1.1V at 1A
• Load Regulation: 1% typical
• Line Regulation: 0.2% typical
• Quiescent Current: 5mA (typical)
• Operating Temperature Range: 0°C to +125°C

Mechanical Specifications:

• Package Type: SOT-223 surface-mount
• Pin Count: 3-pin (Input, Output, Ground)
• Mounting Type: Surface-mount technology (SMT)
• Case Material: Molded plastic

Pinout and Wiring:

• Pin 1: Ground (GND)
• Pin 2: Output (V_OUT)
• Pin 3: Input (V_IN)
• Connection: Use input/output capacitors (typically 10µF) for stability.

Datasheet and Documentation:

• Download AMS1117 1.5V Datasheet (PDF)

Applications:

• Microcontroller Power Supply: Provides 1.5V to digital cores and sensors.
• FPGA & SoC Modules: Powers low-voltage system-on-chip components.
• Consumer Electronics: Stabilizes voltage in portable devices and set-top boxes.
• Communication Devices: Used in modems and routers for regulated outputs.
• Embedded Systems: Supplies voltage to critical analog and digital blocks.

Equivalent Models:

• LD1117V15: Drop-in replacement with similar ratings
• AZ1117H-1.5: Alternative 1.5V LDO regulator in SOT-223
• MIC29302: High-current LDO with improved regulation

Package Includes:

• 1 x AMS1117 1.5V Low Dropout Voltage Regulator SOT-223