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Texas Instruments TPS7B83-Q1 Low-Dropout Regulators

Texas Instruments TPS7B83-Q1 Low-Dropout Regulators are designed to connect to the battery in automotive applications. The TPS7B83-Q1 LDO Regulators have an input voltage range extending to 40V, allowing the device to withstand transients (such as load dump) anticipated in automotive systems. Featuring an 18µA quiescent current, the Regulator is an optimal solution for powering always-on components such as microcontrollers (MCUs) and controller area network (CAN) transceivers in standby systems.

The TI TPS7B83-Q1 Low-Dropout Regulators have a state-of-the-art transient response that enables the output to react quickly to changes in load or line (for example, during cold crank conditions). Additionally, the TPS7B83-Q1 has a novel architecture that minimizes output overshoot when recovering from the dropout. The device has a tight DC accuracy of ±1% over line, load, and temperature during normal operation.

Features

  • AEC-Q100 qualified for automotive applications:
    • -40°C to +125°C, TA temperature grade 1
    • -40°C to +150°C, TJ Junction temperature
  • 3V to 40V (42V max.) input voltage range
  • 3.3V and 5V (fixed) output voltage range
  • Up to 150mA output current
  • ±1% (max.) output voltage accuracy
  • 230mV (max.) at 150mA (VOUT ≥ 3.3V) low dropout voltage
  • 18µA (typ.) low quiescent current
  • Excellent line transient response
    • ±2% VOUT deviation during cold-crank
    • ±2% VOUT deviation (1V/µs VIN slew rate)
  • Stable with a 2.2µF or larger capacitor
  • Functional safety-capable
    • Documentation available to aid functional safety system design
  • 3-pin SOT-223 package

Applications

  • Always-on battery-connected applications:
    • Automotive gateways
    • Remote keyless entries (RKE)
  • Reconfigurable instrument clusters
  • Body control modules (BCM)

Typical Application Schematic

Schematic - Texas Instruments TPS7B83-Q1 Low-Dropout Regulators

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Paskelbta: 2020-12-22 | Atnaujinta: 2025-03-05