LD56050DPU120R STMicroelectronics

LD56050 Datasheet 500 mA ultra-low dropout linear regulator with bias supply 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 A 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 Maturity status link LD56050 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 low- drop, 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 A. Thermal protection is also included. DS12441 - Rev 2 - April 2018 www.st.com For further information contact your local STMicroelectronics sales office.LD56050 Diagram 1 Diagram Figure 2. Block diagram Thermal V V BIAS IN Protection EN VREF + + V OUT EN * GND Note: (*) Output discharge MOSFET. DS12441 - Rev 2 page 2/21