STMicroelectronics LD56050 500mA Ultralow Dropout Linear Regulators

STMicroelectronics LD56050 500mA Ultralow Dropout Linear Regulators are high-accuracy voltage regulators that provide 0.5A of current. The LD56050 features an NMOS pass transistor, with a gate that's biased by a dedicated pin. This allows ultralow-drop performance, even at very low input voltages. The regulators are housed in a DFN4 1.2mm x 1.2mm package for space saving in designs. The LD56050 is suitable for low-power battery-operated applications with an ultralow-drop, low-quiescent current, and short-circuit current foldback. An enable logic control function puts the STMicroelectronics LD56050 500mA Ultralow Dropout Linear Regulators in shutdown mode, allowing a total current consumption lower than 0.1µA. Thermal protection is also included.

Features

  • Input voltage from 0.8V to 5.5V
  • Bias supply pin
  • Ultralow-dropout voltage (120mV max. at 500mA load)
  • Low ground current (27μA typ. at no-load)
  • ±1.5% overtemperature, 0.5% at 25°C output voltage tolerance
  • 500mA guaranteed output current
  • 50mV output voltage step available from 0.8V to 3.6V
  • Logic-controlled electronic shutdown
  • Internal current limit with foldback
  • Thermal shutdown
  • Output active discharge function
  • Available in DFN4 1.2mm x 1.2mm package
  • -40°C to +85°C temperature range

Applications

  • Mobile phones
  • Tablets
  • Battery-powered systems
  • Camera supply

Block Diagram

Block Diagram - STMicroelectronics LD56050 500mA Ultralow Dropout Linear Regulators
Paskelbta: 2018-06-05 | Atnaujinta: 2023-02-08