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Texas Instruments UA78L Positive Voltage Linear Regulators

Texas Instruments UA78L Positive Voltage Linear Regulators are designed for various applications. The UA78L series can be used for on-card regulation to eliminate the noise and distribution problems associated with single-point regulation. The UA78L can also be used with power-pass elements to make high-current voltage regulators. The UA78L series regulators can deliver up to 100mA of output current. Additionally, the UA78L does not need an external capacitor for stable operation across the load current range. These regulators’ internal current-limiting and thermal-shutdown features help protect the device from overload.

For the legacy chip, the UA78L00C and UA78L00AC series are characterized for the junction temperature range of 0°C to +125°C and the UA78L05AI device is characterized for the operating junction temperature range of –40°C to +125°C. For the new chip, the Texas Instruments UA78L series is characterized for a junction temperature range of –40°C to +125°C.

Features

  • 4.75V to 35V input voltage range (VI
  • Output voltage range (VO)
    • 2.6V to 15V (for legacy chip)
    • 3.3V to 15V (for new chip)
  • Output current of up to 100mA
  • 3.8mA quiescent current IQ 
  • Built-in short-circuit current limiting and thermal protection
  • Stable without any external component
  • Supported temperature range
    • Legacy chip C and AC versions at 0°C to +125°C
    • Legacy chip AI version at –40°C to +125°C
    • New chip at –40°C to +125°C
  • Packages
    • 8-pin, 4.9mm × 3.91mm SOIC
    • 3-pin, 4.3mm × 4.3mm TO-92
    • 3-pin, 4.5mm × 2.5mm SOT-89

Applications

  • Motor drives
  • Appliances
  • Building automation
  • Flow transmitters
  • Factory automation and control

Videos

Functional Block Diagram

Block Diagram - Texas Instruments UA78L Positive Voltage Linear Regulators

Texas Instruments UA78L Positive Voltage Linear Regulators