LD56050 Ultra-Low Dropout Linear Regulator

By STMicroelectronics 149

LD56050 Ultra-Low Dropout Linear Regulator

STMicro's LD56050 is a high-accuracy voltage regulator that provides 0.5 A of current. It is equipped with an NMOS pass transistor, whose gate is biased by a dedicated pin that allows an ultra-low drop performance even at very low input voltages. The LD56050 is available in DFN4 1.2 mm x 1.2 mm package, allowing maximum space-saving.

This device is stabilized with a small ceramic capacitor on the output. The ultra-low dropout, low quiescent current, and short circuit current foldback make the LD56050 suitable for low power battery-operated applications. An enable logic control function puts the LD56050 in shutdown mode allowing a total current consumption lower than 0.1 µA. Thermal protection is also included.

  • Very low input voltage (0.8 V to 5.5 V) with bias supply pin
    • Enables operation with low voltage rails
  • Ultra-low dropout voltage (80 mV typical at 500 mA load)
    • Minimizes power losses
  • Low ground current (27 µA typical at no-load)
    • Prolongs battery life
  • Output voltage tolerance: ±1.5% at +25°C
    • Accurate supply voltage for sensitive loads
  • Internal current limit with foldback
    • Protects the device against accidental short circuits on the load
  • DFN4 1.2 mm x 1.2 mm package
    • Minimizes board space
  • Smartphones
  • Tablets
  • Camera sensors
  • Camera modules

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