NCV890230: Automotive Buck Switching Regulator, 2 A, 2 MHz , 45 V Load Dump

Description: The NCV890230 is a fixed-frequency, monolithic, Bu...
  • The NCV890230 is a fixed-frequency, monolithic, Buck switching regulator intended for Automotive, battery-connected applications that must operate with up to a 36V input supply. The regulator is suitable for systems with low noise and small form factor requirements often encountered in automotive driver information systems. The NCV890230 is capable of converting the typical 4.5 V to 18 V automotive input voltage range to outputs as low as 3.3 V at a constant switching frequency above the sensitive AM band, eliminating the need for costly filters and EMI countermeasures. The NCV890230 also provides several protection features expected in Automotive power supply systems such as current limit, short circuit protection, and thermal shutdown. In addition, the high switching frequency produces low output voltage ripple even when using small inductor values and an all-ceramic output filter capacitor - forming a space-efficient switching regulator solution.
  • Features
  • 2 MHz Free-running Switching Frequency - Enables to use small size, low cost inductor and EMC filter
  • Internal N-Channel Power Switch - Fewer external components
  • Low VIN Operation Down to 4.5 V - Maintains operation during battery transients
  • High VIN Operation to 32 V - Maintains operation during battery transients
  • Withstands Load Dump to 45 V - Protects the load from load dump
  • Logic level Enable Input Can be Directly Tied to Battery - Flexible enable
  • 2.2 A (min) Cycle-by-Cycle Peak Current Limit - Protects against over current faults
  • Short-Circuit Protection enhanced by Frequency Foldback - Protects against short circuits on the output
  • 1.75% Output Voltage Tolerance - Highly accurate regulation.
  • Output Voltage Adjustable Down to 0.8 V - Suitable for a wide range of applications
  • 1.4 ms Internal Soft-Start - Limits inrush current
  • Thermal Shutdown (TSD) - Thermally protects IC
  • Applications
  • Audio
  • Infotainment
  • Safety - Vision Systems
  • Instrumentation
  • End Products
  • Automotive
  • Technical Documentation & Design Resources
    Evaluation/Development Tool Information
    Availability and Samples
  • Status: Active
  • Compliance: AEC Qualified PPAP Capable Pb-free 
  • Description: Automotive Buck Switching Regulator, 2 A, 2 MHz , 45 V Load Dump
  • Package Type: SOIC-8 EP
  • Package Case Outline: 751AC
  • MSL: 2
  • Container Type: REEL
  • Container Qty: 2500
  • Inventory

  • Market Leadtime (weeks):Contact Factory
  • Arrow:0
  • ON Semiconductor:5,000
  • Specifications
  • Topology: Step-Down 
  • Control Mode: Current Mode 
  • VCC Min (V): 4.5 
  • VCC Max (V): 45 
  • VO Typ (V): Adjustable 
  • IO Typ (A):
  • Efficiency (%):
  • fSW Typ (kHz): 2250 
  • Package Type: SOIC-8 EP 
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