The SPX1585T-L/TR is a low dropout (LDO) positive voltage regulator manufactured by Sipex Corporation (now part of MaxLinear). It is designed to provide a stable and regulated output voltage with a minimal voltage drop between the input and output. This regulator is commonly used in applications where efficiency and low noise are critical.

Applications

• Motherboards: Providing regulated voltage for critical components.
• Graphics Cards: Powering GPUs and memory.
• Post Regulators for Switching Supplies: Reducing ripple and noise from switching power supplies.
• Battery Chargers: Regulating charging voltage for various battery types.
• Instrumentation: Providing stable voltage for sensitive measurement circuits.

Features

• Low Dropout Voltage: Operates with a minimal voltage difference between input and output.
• Adjustable Output Voltage: The output voltage can be adjusted using external resistors.
• High Accuracy: Provides a highly accurate and stable output voltage.
• Current Limiting: Built-in current limiting protection to prevent damage from overloads.
• Thermal Shutdown: Thermal shutdown protection to prevent damage from overheating.
• Reverse Battery Protection: Protection against reverse battery connections.

Benefits

• Increased Efficiency: Low dropout voltage improves efficiency, especially in battery-powered applications.
• Stable Output Voltage: Provides a stable and accurate output voltage, even with varying input voltage and load conditions.
• Overload Protection: Current limiting and thermal shutdown prevent damage from overloads and overheating.
• Reduced Noise: Low noise operation makes it suitable for sensitive applications.
• Easy to Use: Simple external components required for operation.

Technical Specifications:

• Input Voltage Range: Typically 4.75V to 7V (check datasheet for exact range)
• Output Voltage: Adjustable (typically 1.25V to 5V, depending on external resistors)
• Dropout Voltage: Typically less than 1.3V at full load current (check datasheet)
• Output Current: 3A
• Operating Temperature Range: -40°C to +125°C (check datasheet)
• Package Type: TO-220