DATA SHEET www.onsemi.com MARKING 1.5 A, Step-Up/Down/ DIAGRAMS Inverting Switching Regulators 3063x ALYW 8 NCP3063, NCP3063B, 1 1 SOIC8 NCV3063 D SUFFIX V3063 CASE 751 The NCP3063 Series is a higher frequency upgrade to the popular ALYW MC34063A and MC33063A monolithic DCDC converters. These 1 devices consist of an internal temperature compensated reference, comparator, a controlled duty cycle oscillator with an active current limit circuit, a driver and a high current output switch. This series was NCP3063x specifically designed to be incorporated in StepDown, StepUp and AWL VoltageInverting applications with a minimum number of external YYWWG components. 1 Features 8 1 Operation to 40 V Input NCV3063 PDIP8 Low Standby Current AWL P, P1 SUFFIX YYWWG Output Switch Current to 1.5 A CASE 626 1 Output Voltage Adjustable Frequency Operation of 150 kHz NCP Precision 1.5% Reference 3063x New Features: Internal Thermal Shutdown with Hysteresis ALYW CyclebyCycle Current Limiting 1 PbFree Packages are Available DFN8 CASE 488AF NCP Applications 3063 ALYW StepDown, StepUp and Inverting supply applications High Power LED Lighting NCP3063x = Specific Device Code Battery Chargers x = B A = Assembly Location 8 1 NCP3063 L, WL = Wafer Lot TSD Y, YY = Year SET dominant W, WW = Work Week R = PbFree Package Q (Note: Microdot may be in either location) S 7 COMPARATOR ORDERING INFORMATION S 2 + SET dominant See detailed ordering and shipping information in the package Q Rs dimensions section on page 16 of this data sheet. R 0.15 D OSCILLATOR 0.2 V 6 3 V in CT L 47 H 12 V + CT COMPARATOR C 1.25 V + in 2.2 nF 220 F REFERENCE V 5 REGULATOR out 4 3.3 V / 800 mA 3.9 k R2 + R1 470 F 2.4 k C out Figure 1. Typical Buck Application Circuit Semiconductor Components Industries, LLC, 2011 1 Publication Order Number: August, 2021 Rev. 10 NCP3063/DNCP3063, NCP3063B, NCV3063 Switch Collector 1 8 N.C. N.C. Switch Collector Switch Emitter 2 7 I Sense pk I Sense Switch Emitter pk EP Flag Timing Capacitor Timing Capacitor 3 6 V V CC CC GND Comparator Comparator 4 5 GND Inverting Inverting (Top View) (Top View) Input Input NOTE: EP Flag must be tied to GND Pin 4 on PCB Figure 2. Pin Connections Figure 3. Pin Connections NCP3063 8 1 TSD N.C. Switch Collector SET dominant R Q S COMPARATOR 7 2 I Sense pk S + Switch Emitter Q SET dominant R 0.2 V OSCILLATOR 3 6 Timing Capacitor CT +V CC COMPARATOR 1.25 V + REFERENCE REGULATOR 4 5 GND Comparator Inverting Input Figure 4. Block Diagram www.onsemi.com 2