The HT7580_1-TO92 is a low dropout (LDO) linear regulator manufactured by Holtek. Housed in a TO-92 package, it is designed to provide a stable and regulated output voltage, typically used to power sensitive electronic components. It efficiently converts a higher input voltage to a stable lower output voltage, making it ideal for a variety of applications where a reliable voltage source is crucial.

Applications

• Power supplies for microcontrollers
• Portable electronic devices
• Battery-powered equipment
• Post-regulation for switching power supplies
• General-purpose voltage regulation

Features

• Fixed output voltage: Typically available in various voltage options (e.g., 3.0V, 3.3V, 5.0V)
• Low dropout voltage: Enables operation with a small difference between input and output voltages
• Output current: Capable of delivering up to 150mA (depending on the specific variant)
• Input voltage range: Wide input voltage range to accommodate various power sources
• TO-92 package: Easy to mount and integrate into existing circuits
• Over-temperature protection: Prevents damage from overheating
• Short-circuit protection: Protects the regulator and connected components from short circuits

Benefits

• Stable and regulated voltage: Provides a consistent output voltage, ensuring reliable performance of connected devices.
• Extended battery life: Low dropout voltage and efficient operation maximize battery life in portable applications.
• Compact size: The TO-92 package is suitable for space-constrained applications.
• Protection against damage: Over-temperature and short-circuit protection safeguards the regulator and connected circuits.
• Easy integration: Simple design and readily available package simplify implementation in various projects.

Additional Details

The HT7580_1-TO92 utilizes a CMOS process for low quiescent current and high efficiency. The external components required for operation are minimal, typically consisting of input and output capacitors. The specific output voltage is usually indicated by a suffix in the part number (e.g., HT7550-1 for 5.0V). The regulator’s thermal shutdown feature activates when the junction temperature exceeds a threshold, preventing thermal damage. Short-circuit protection limits the output current to a safe level during fault conditions. Its operating temperature range typically spans from -40°C to +85°C.