PWM Buck Controller, Synchronous, 100V
NCP1034
Description The NCP1034 is a high voltage PWM controller designed for hig...
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
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