Richtek Introduces LDO Linear Regulator for Portable Electronics Applications

Richtek Introduces LDO Linear Regulator for Portable Electronics Applications

Richtek introduces low quiescent low-dropout linear regulator, the RT9080. To squeeze more energy out of a small battery, using products with low quiescent current (Iq) is the best choice. Richtek recognizes the growing demand for portable and wearable devices.

The RT9080 is a low-dropout (LDO) voltage regulator with enable function that operates from 1.2 V to 5.5 V. It provides up to 600 mA of output current and offers low-power operation in miniaturized packaging.

The features of low quiescent current as low as 2 μA and almost zero disable current is ideal for powering the battery equipment to a longer service life. The RT9080 is stable with the ceramic output capacitor over its wide input range from 1.2 V to 5.5 V and the entire range of output load current (0 mA to 600 mA).

Key features

  • 2 μA Ground Current at no Load
  • PSRR = 75 dB at 1kHz
  • Adjustable Output Voltage Available by Specific Application
  • ±2% Output Accuracy
  • 600 mA (VIN ≥ 2.3 V) Output Current with EN
  • Low (0.1 μA) Disable Current
  • 1.2 V to 5.5 V Operating Input Voltage
  • Dropout Voltage: 0.31 V at 600 mA when VOUT ≥ 3 V
  • Support Fixed Output Voltage 0.8 V to 3.3 V
  • Stable with Ceramic or Tantalum Capacitor
  • Current-Limit Protection
  • Over-Temperature Protection
  • TSOT-23-5 and ZQFN-4L 1x1 (ZDFN-4L 1x1) Packages Available

Key applications

  • Portable, Battery-Powered Equipment
  • Ultra Low Power Microcontrollers
  • Notebook Computers

Click here to learn more about RT9080-33GJ5