Texas Instruments TPS7B82-Q1 Ultra-Low-IQ LDO Regulators

Texas Instruments TPS7B82-Q1 300mA High-Voltage Ultra-Low-IQ Low-Dropout (LDO) Regulators are designed for automotive battery-connected applications up to 40V input voltage. The TPS7B82-Q1 is an optimal solution for powering microcontrollers and CAN/LIN transceivers in stand-by systems with a 2.7µA typical quiescent current at light load. The low quiescent current (IQ) is essential to save power and extend the battery life in automotive battery-connected applications. The device provides integrated fault protection features such as thermal shutdown, short-circuit, and overcurrent protection. When significant dissipation is across the device, a thermally conductive package is used to enable sustained operation. The ambient temperature from –40°C to 125°C and junction temperature from –40°C to 150°C are implemented on the device. The Texas Instruments TPS7B82-Q1 devices are AEC-Q100 qualified for automotive applications.

Features

  • Qualified for automotive applications
  • Stable with low-ESR (0.001Ω to 5Ω) ceramic output-stability capacitor (1µF to 200µF)
  • Fixed 5V and 3.3V output voltage
  • AEC-Q100 qualified with the following results
    • Device temperature Grade 1 (-40°C to 125°C ambient operating temperature range)
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C3B
  • -40°C to 150°C device junction temperature range 
  • Low quiescent current IQ
    • 300nA typical when EN = Low (shutdown mode)
    • 2.7µA typical at light loads
    • 5µA maximum at light loads
  • 2% output-voltage accuracy
  • 700mV at 200mA load current for fixed 5V output version maximum dropout voltage 
  • Integrated fault protection
    • Thermal shutdown
    • Short-circuit and overcurrent protection
  • 63.9°C/W thermal resistance (RθJA) 
  • 8-pin MSOP package
  • 3V to 40V wide VIN input voltage range with up to 45V transient
  • 300mA maximum output current 

Applications

  • Automotive head units
  • Telematics control units
  • Headlights
  • Body control modules
  • Inverter and motor controls

Functional Block Diagram

Block Diagram - Texas Instruments TPS7B82-Q1 Ultra-Low-IQ LDO Regulators
Opublikowano: 2018-04-11 | Zaktualizowano: 2022-11-21