NCP1034

PWM Buck Controller, Synchronous, 100V NCP1034 Description The NCP1034 is a high voltage PWM controller designed for high performance synchronous Buck DC/DC applications with input voltages up to 100 V. The NCP1034 drives a pair of external N−MOSFETs. The switching frequency is programmable from 25 kHz up to 500 kHz allowing the flexibility to tune for efficiency and size. A synchronization feature allows the switching frequency to be set by an external source or output a synchronization signal to multiple NCP1034 controllers. The output voltage can be precisely regulated using the internally trimmed 1.25 V reference voltage for low voltage applications. Protection features include user programmable undervoltage lockout and hiccup current limit. Features High Voltage Operating up to 100 V Programmable Switching Frequency up to 500 kHz 2 A Output Drive Capability Precision Reference Voltage (1.25 V) Programmable Soft−Start with Prebiased Load Capability Programmable Overcurrent Protection Programmable Undervoltage Protection Hiccup Current Limit Using MOSFET RDS(on) Sensing External Frequency Synchronization 16 Pin SOIC Package This is a Pb−Free Device Applications 48 V Non−Isolated DC−DC Converter Embedded Telecom Systems Networking and Computing Voltage Regulator Distributed Point of Load Power Architectures General High Voltage DC−DC Converters DATA SHEET www.onsemi.com SOIC−16 D SUFFIX CASE 751B MARKING DIAGRAM NCP1034DG AWLYWW A = Asse...