NCP1034: 100 V Sync Buck Controller

Datasheet: NCP1034 Datasheet Rev. 3 (303.0kB)

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The NCP1034 is a high voltage PWM controller designed for high performance synchronous Buck DC-DC applications. The NCP1034 drives a pair of external N-MOSFETs using a programmable switching frequency up to 500 kHz which allows flexibility to tune the operation of the IC to meet system level requirements. An external synchronization feature allows the simplification of system level filter design. The output voltage can be precisely regulated using the internal 1.25 V reference voltage for low voltage applications. Protections such as under voltage lockout and hiccup current limit are provided to give required system level security in the event of a fault.

Features		Benefits
Input voltage up to 100V		Wide input voltage to be used with +48V or +60V input
2 A Output Drive Capability		Ability to use larger size FETs for increased efficiency
1.25 V +/-1.5% feedback voltage across temperature		Excellent system level accuracy across temperature
External Frequency Synchronization		Ability to sync to external frequency or output a sync pulse
Programmable switching frequency up to 500 kHz		Optimization for efficiency and size

Applications		End Products
48 V Non-Isolated DC-DC Converter Distributed Point of Load Power Architectures General High Voltage DC-DC Converters		Embedded Telecom Systems Networking and Computing Voltage Regulator

Technical Information
Design & Development Tools (1)	Data Sheets (1)
Design Notes (2)	Package Drawings (1)