NCP3120

NCP3120 Dual 2.0 A, Step-Down DC/DC Switching Regulator The NCP3120 is a dual buck converter designed for low voltage applications requiring high efficiency. This device is capable of producing an output voltage as low as 0.8 V. The NCP3120 provides dual 2.0 A switching regulators with an adjustable 200 kHz − 750 kHz switching frequency. The switching frequency is set by an external resistor. The NCP3120 also incorporates an auto−tracking and sequencing feature. Protection features include cycle−by−cycle current limit and undervoltage lockout (UVLO). The NCP3120 comes in a 32−pin QFN package. Features Input Voltage Range from 4.5 V to 13.2 V 12 Vin to 5.0 Vout = 87% Efficiency Min @ 2.0 A 200−750 kHz Operation Stable with Low ESR Ceramic Output Capacitor 0.8 ±1.5% FB Reference Voltage External Soft−Start Out of Phase Operation of OUT1 & OUT2 Auto−Tracking and Sequencing Enable/Disable Capability Hiccup Overload Protection Low Shutdown Power (Iq < 100 mA) http://onsemi.com 1 32 QFN32 CASE 488AM MARKING DIAGRAM 1 NCP3120 AWLYYWWG G NCP3120 = Specific Device Code A = Assembly Location WL = Wafer Lot YY = Year WW = Work Week G = Pb−Free Package (Note: Microdot may be in either location) ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 40 of this data sheet. Typical Applications Set−Top Boxes, Portable Applications, Networking and Telecommunications DSP/mP/FPGA Core VIN R_TRACK PG1 P...