The TA79L15F is a three-terminal negative voltage regulator manufactured by Toshiba Semiconductor and Storage. It is designed to provide a fixed -15V output voltage. As part of the TA79L series, it is known for its low current output and small package size, making it ideal for applications where space is limited and a stable negative voltage source is necessary.

Applications

• Operational Amplifier Power Supplies: Provides the negative voltage rail required for operational amplifiers.
• Portable Electronic Devices: Regulates voltage in battery-powered equipment.
• Analog Circuitry: Powers circuits needing a -15V supply.
• Instrumentation Amplifiers: Supplies stable power to instrumentation amplifiers requiring dual power rails.
• Small Signal Amplification Stages: Provides the necessary negative voltage for amplification circuits.

Features

• Fixed -15V Output Voltage: Simplifies design, eliminating the need for external voltage adjustments.
• Internal Short-Circuit Current Limiting: Protects the regulator and load from damage due to short circuits.
• Thermal Overload Protection: Shuts down the regulator if the junction temperature exceeds a safe limit.
• Compact Package: Allows for use in space-constrained applications.
• Low Quiescent Current: Minimizes power consumption, particularly in battery-powered devices.

Benefits

• Stable -15V Source: Ensures consistent performance of electronic circuits requiring a reliable negative voltage.
• Simplified Circuit Design: Reduces complexity by providing a fixed voltage output.
• Enhanced Reliability: Protection features guard against overcurrent and thermal issues.
• Space-Efficient: Small package enables usage in compact devices.
• Energy Efficient: Low quiescent current extends battery life.

Technical Specifications

The TA79L15F typically operates with an input voltage range of -17.5V to -35V. It can provide an output current of up to 100mA. The dropout voltage is typically around 1.7V. The operating junction temperature range is typically from -40°C to +125°C. Consult the manufacturer's datasheet for precise specifications, application notes, and recommended external component selection.