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STMicroelectronics LDK120x Low Drop Voltage Regulators

STMicroelectronics LDK120x Low Drop Voltage Regulators provide 200mA of maximum current from an input supply voltage of 1.9V to 5.5V, with a typical dropout voltage of 100mV. They are stabilized with a ceramic capacitor on the output. The low drop voltage, low quiescent current, and low noise features make this series suitable for low-power, battery-powered applications. An enable logic control function puts the LDK120x in shutdown mode, allowing a total current consumption lower than 1μA. STMicroelectronics LDK120x Low Drop Voltage Regulators offer a short-circuit constant current limiting and thermal protection.

Features

  • 1.9V to 5.5V input voltage
  • Low dropout voltage (100mV typ. at 100mA load)
  • Low quiescent current (max. 100μA, 1μA in OFF mode)
  • Low noise
  • ±2.0% output voltage tolerance at 25°C
  • 200mA guaranteed output current
  • Logic-controlled electronic shutdown
  • Compatible with ceramic capacitor COUT = 1μF
  • Internal current and thermal limit
  • SOT23-5L, SOT323-5L and DFN6 (1.2mm x 1.3mm) packages
  • -40°C to +125°C operating temperature range

Applications

  • Mobile phones
  • Personal digital assistants (PDAs)
  • Cordless phones and similar battery-powered systems
  • Digital still cameras

Block Diagram

STMicroelectronics LDK120x Low Drop Voltage Regulators
Published: 2013-07-17 | Updated: 2022-03-11