Description
The LD56050 is a high accuracy voltage regulator, which provides 0.5 A of current. It
is equipped with an NMOS pass transistor, whose gate is biased by a dedicated pin,
thus allowing an ultra low-drop performance even at very low input voltages.
It is available in DFN4 1.2 x 1.2 package, allowing the maximum space saving.
The device is stabilized with a small ceramic capacitor on the output. The ultra lowdrop, 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.

Features
• Input voltage from 0.8 to 5.5 V
• Bias supply pin
• Ultra low-dropout voltage (80 mV typ. at 500 mA load)
• Low ground current (27 μA typ. at no-load)
• Output voltage tolerance: ± 1.5% overtemperature, 0.5% at 25 °C
• 500 mA guaranteed output current
• 50 mV output voltage step available from 0.8 V to 3.6 V
• Logic-controlled electronic shutdown
• Internal current limit with foldback
• Thermal shutdown
• Output active discharge function
• Available in DFN4 1.2 x 1.2 mm package
• Temperature range: -40 °C to 85 °C

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