NCP1034: 100 V Synchronous Buck Controller

Description: The NCP1034 is a high voltage PWM controller desig...
  • 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
  • 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
  • 48 V Non-Isolated DC-DC Converter
  • Distributed Point of Load Power Architectures
  • General High Voltage DC-DC Converters
  • End Products
  • Embedded Telecom Systems
  • Networking and Computing Voltage Regulator
  • Technical Documentation & Design Resources
    Evaluation/Development Tool Information
    Product Change Notification
    Availability and Samples
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: 100 V Synchronous Buck Controller
  • Package Type: SOIC-16
  • Package Case Outline: 751B-05
  • MSL: 3
  • Container Type: REEL
  • Container Qty: 2500
  • Inventory

  • Market Leadtime (weeks):13 to 16
  • Arrow:0
  • Digikey:>1K
  • FutureElectronics:>1K
  • Newark:<1K
  • PandS:>1K
  • Applications
  • Topology: Step-Down 
  • Phases:
  • Control Mode: Voltage Mode 
  • VCC Min (V):
  • VCC Max (V): 100  57  40  42  75 
  • fSW Typ (kHz): Up to 500 
  • Package Type: SOIC-16 
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