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Automotive 150-mA low-IQ high-PSRR low-dropout (LDO) voltage regulator

Inventory: 895
Limit:  50

Quality information

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Packaging information

Package | Pins Package qty | Carrier Operating temperature range (°C)
VSON (DRB) | 8 3,000 | LARGE T&R
-40 to 150
Package | Pins VSON (DRB) | 8
Package qty | Carrier 3,000 | LARGE T&R
Operating temperature range (°C) -40 to 150
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Features for the TPS7B84-Q1

  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
    • Junction temperature: –40°C to +150°C,TJ
  • Input voltage range: 3 V to 40 V (42 V max)
  • Output voltage range:
    • Adjustable output: 1.2 V to 18 V
    • Fixed output: 3.3 V and 5V
  • Output current: up to 150 mA
  • Output voltage accuracy: ±1.5% (max)
  • Low dropout voltage:
    • 255 mV (max) at 150 mA (VOUT ≥ 3.3V)
  • Low quiescent current:
    • 20 µA (typ) at light loads
    • 5 µA (max) when disabled
  • Excellent line transient response:
    • ±2% VOUT deviation during cold-crank
    • ±2% VOUT deviation (1-V/µsVIN slew rate)
  • Stable with a 2.2-µF or larger capacitor
  • Package options:
    • DRB (8-pin VSON),RθJA: 50.8ºC/W
    • DCY(4-pin SOT-223), RθJA: 85.5ºC/W

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Description for the TPS7B84-Q1

The TPS7B84-Q1 is a low-dropout linear regulator designed to connect to thebattery in automotive applications. The device has an input voltage range extending to 40 V, whichallows the device to withstand transients (such as load dump) that are anticipated in automotivesystems. With only a 20-µA quiescent current at light loads, the device is an optimal solution forpowering always-on components such as microcontrollers (MCUs) and controller area network (CAN)transceivers in standby systems.

The TPS7B84-Q1 has both fixed and adjustable output types. The wideoutput voltage range allows the device to generate the bias voltage for silicon carbide (SiC) gatedrivers and microphones as well as power MCUs and processors.

The device has state-of-the-art transient response that allows the output to quicklyreact to changes in load or line (for example, during cold-crank conditions). Additionally, thedevice has a novel architecture that minimizes output overshoot when recovering from dropout.During normal operation, the device has a tight DC accuracy of ±1.5% over line, load, andtemperature.

The device is available in both a SOT223 package and a small VSONpackage with wettable flanks that facilitates a compact printed circuit board (PCB) design. The lowthermal resistance enables sustained operation despite significant dissipation across thedevice.


Qty Price (USD)
1-99 1.356
100-249 1.043
250-999 0.768
1,000+ 0.549