The TA79L012P is a three-terminal negative voltage regulator from Toshiba Semiconductor and Storage. It provides a fixed -12V output voltage, making it suitable for applications where a stable negative voltage source is required. This regulator is part of the TA79L series, known for its low current output and compact package, making it ideal for space-constrained applications.

Applications

  
• Low-Power Microcontroller Circuits: Provides the negative supply rail for microcontrollers and their associated peripherals.
  
• Battery-Powered Devices: Regulates voltage in portable electronic devices requiring a negative supply.
  
• Small Signal Amplifiers: Powers low-current preamplifiers and other small-signal audio circuits.
  
• Logic Circuits: Supplies the negative bias voltage for certain logic gate configurations.
  
• Sensor Applications: Provides a stable negative voltage for sensors requiring a dual-supply configuration.

Features

  
• Fixed -12V Output Voltage: Simplifies design by providing a pre-set negative voltage.
  
• Internal Short-Circuit Current Limiting: Protects the regulator and the load from damage due to short circuits.
  
• Thermal Overload Protection: Shuts down the regulator if the junction temperature exceeds a safe limit.
  
• Compact Package: Suitable for applications where board space is limited.
  
• Low Quiescent Current: Minimizes power consumption when the regulator is not actively supplying current.

Benefits

  
• Stable Negative Voltage Source: Ensures consistent performance of circuits requiring a -12V supply.
  
• Simplified Circuit Design: Reduces the complexity of power supply implementations.
  
• Enhanced System Reliability: Built-in protection features safeguard against overcurrent and thermal issues.
  
• Space-Saving Design: Compact package allows for use in small electronic devices.
  
• Energy Efficient: Low quiescent current minimizes battery drain in portable applications.

Technical Specifications

The TA79L012P typically operates with an input voltage range of -14.5V to -30V. 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. Refer to the manufacturer's datasheet for detailed specifications, application notes, and recommended external components.