Voltage Regulator, Bias Rail CMOS, Very Low Dropout, 500 mA NCP145 The NCP145 is a 500 mA VLDO equipped with NMOS pass transistor and a separate bias supply voltage (V ). The device BIAS www.onsemi.com provides very stable, accurate output voltage with low noise suitable T for space constrained, noise sensitive applications. In order to optimize performance for battery operated portable applications, the MARKING NCP145 features low I consumption. The XDFN4 1.2 mm x 1.2 mm Q DIAGRAM package is optimized for use in space constrained applications. 1 Features XXM XDFN4 Input Voltage Range: 1.0 V to 5.5 V CASE 711BC 1 Bias Voltage Range: 2.4 V to 5.5 V Fixed Voltage Versions Available XX = Specific Device Code M = Date Code Output Voltage Range: 1.0 V to 1.8 V (Fixed) 1.5% Accuracy over Temperature, 0.5% V 25C OUT UltraLow Dropout: Typ. 140 mV at 500 mA PIN CONNECTIONS Very Low Bias Input Current of Typ. 80 A Very Low Bias Input Current in Disable Mode: Typ. 0.5 A IN43 EN Logic Level Enable Input for ON/OFF Control Output Active Discharge Option Available GND Stable with a 2.2 F Ceramic Capacitor 5 Available in XDFN4 1.2 mm x 1.2 mm x 0.4 mm Package OUT BIAS 12 These Devices are PbFree, Halogen Free/BFR Free and are RoHS Compliant (Top View) Typical Applications Batterypowered Equipment Smartphones, Tablets ORDERING INFORMATION See detailed ordering, marking and shipping information on Cameras, DVRs, STB and Camcorders page 10 of this data sheet. V BIAS >2.7 V NCP145 100 nF BIAS V OUT OUT 1 V up to 500 mA V IN IN 2.2 F 1.5 V 1 F EN GND V EN Figure 1. Typical Application Schematics Semiconductor Components Industries, LLC, 2017 1 Publication Order Number: September, 2019 Rev. 3 NCP145/DNCP145 CURRENT IN OUT LIMIT ENABLE EN BLOCK BIAS UVLO 150 VOLTAGE + REFERENCE THERMAL LIMIT *Active DISCHARGE GND *Active output discharge function is present only in NCP145AMXyyyTCG and NCP145CMXyyyTCG devices. yyy denotes the particular output voltage option. Figure 2. Simplified Schematic Block Diagram www.onsemi.com 2