500 mA, Very Low Dropout Bias Rail CMOS Voltage Regulator NCP134 The NCP134 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 NCP134 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: 0.8 V to 5.5 V CASE 711BC 1 Bias Voltage Range: 2.4 V to 5.5 V XX = Specific Device Code Fixed Voltage Versions Available M = Date Code Output Voltage Range: 0.8 V to 2.1 V (Fixed) 1.5% Accuracy over Temperature, 0.5% V 25C OUT UltraLow Dropout: Max. 150 mV at 500 mA, 1.1 V Output, 3.3 V PIN CONNECTIONS Bias, 85C Very Low Bias Input Current of Typ. 80 A IN43 EN Very Low Bias Input Current in Disable Mode: Typ. 0.5 A Logic Level Enable Input for ON/OFF Control GND Output Active Discharge Option Available 5 Stable with a 2.2 F Ceramic Capacitor OUT BIAS 12 Available in XDFN4 1.2 mm x 1.2 mm x 0.4 mm Package These Devices are PbFree, Halogen Free/BFR Free and are RoHS (Top View) Compliant Typical Applications Batterypowered Equipment ORDERING INFORMATION See detailed ordering, marking and shipping information on Smartphones, Tablets page 10 of this data sheet. Cameras, DVRs, STB and Camcorders V BIAS >2.7 V NCP134 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. 7 NCP134/DNCP134 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 NCP134AMXyyyTCG devices. yyy denotes the particular output voltage option. Figure 2. Simplified Schematic Block Diagram Fixed Version www.onsemi.com 2