200 mA ultra-low quiescent current LDO


  • Ultra-low quiescent current
  • Very low-dropout voltage
  • Internal overcurrent and thermal protections
  • Temperature range: from -40 °C to +125 °C

The STLQ020 is a 200 mA low-dropout voltage regulator, able to work with an input voltage ranging from 2 V to 5.5 V.

The typical dropout voltage at maximum load is 160 mV.

The ultra-low quiescent current, which is just 0.3 μA at no load, extends battery-life of applications requiring very long standby time.

Even though the device intrinsic consumption is ultra-low, STLQ020 is able to provide fast transient response and good PSRR performance, thanks to its adaptive biasing circuit. It also includes short-circuit constant-current limiting and thermal protection.

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  • Operating input voltage range: 2 V to 5.5 V
  • Output current up to 200 mA
  • Output voltage accuracy: 2% at room temperature, 3% in full temperature range
  • Output voltage versions: from 0.8 V to 4.5 V, with 50 mV step and adjustable
  • Logic-controlled electronic shutdown
  • Output discharge feature (optional)
  • Packages: DFN6-2x2, SOT323-5L, Flip-Chip4
  • Healthcare devices
  • Wearables
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