Energy Efficient Innovations

Product Overview  


For complete documentation, see the data sheet.

Printed On: 7/11/2015

NCV890201: Automotive Switching Regulator, Buck, 2 A, 2 MHz

Product Description
The NCV890201 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 NCV890201 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.
Two pins are provided to synchronize switching to a clock, or to another NCV890201. The NCV890201 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   Benefits
     
  • 2 MHz Free-running Switching Frequency
 
  • Enables the use of small, low-cost inductor and EMC filter
  • Internal N-Channel Power Switch
   
  • Low VIN Operation Down to 4.5 V
   
  • High VIN Operation to 36 V
   
  • Withstands Load Dump to 40 V
   
  • Auto-synchronizes with Other NCV890201 or to an External Clock
   
  • Logic level Enable Input Can be Directly Tied to Battery
   
  • 2.2 A (min) Cycle-by-Cycle Peak Current Limit
   
  • Short Circuit Protection Enhanced by Frequency Foldback
   
  • ±1.75% Output Voltage Tolerance
   
Applications   End Products
  • Audio
  • Infotainment
 
  • Automotive
Selected Electrical Specifications

Product Compliance Status Description Topology Control Mode VCC Min (V) VCC Max (V) VO Typ (V) IO Typ (A) Efficiency (%) fSW Typ (kHz) Package Type
 AEC Qualified 
 PPAP Capable 
 Pb-free 
 Active     Automotive Switching Regulator, Buck, 2 A, 2 MHz   Step-Down   Current Mode   4.5   40   Adjustable   2     2250   DFN-10 
Package Availability
Type
PB free
Standard
DFN-10 x