Energy Efficient Innovations

Product Overview  


For complete documentation, see the data sheet.

Printed On: 7/11/2015

NCV890100: Automotive Switching Regulator, Buck, 1.2 A, 2 MHz

Product Description
The NCV890100 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 NCV890100 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 NCV890100 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 size, low cost inductor and EMC filter
  • Internal N-Channel Power Switch
   
  • Low VIN Operation Down to 4.5 V
   
  • High VIN Operation Up to 36 V
   
  • Withstands Load Dumps to 40 V
   
  • Logic level Enable Input Can be Directly Tied to Battery
   
  • 1.4 A (min) Cycle-by-Cycle Peak Current Limit
   
  • Short-Circuit Protection enhanced by Frequency Foldback
   
  • ±1.75% Output Voltage Tolerance
   
  • Output Voltage Adjustable Down to 0.8 V
   
Applications   End Products
  • Audio
  • Infotainment
  • Safety - Vision Systems
  • Dashboards
 
  • 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, 1.2 A, 2 MHz   Step-Down     4.5   40   Adjustable   1.2     2250   DFN-8 
 AEC Qualified 
 PPAP Capable 
 Pb-free 
 Active     Automotive Switching Regulator, Buck, 1.2 A, 2 MHz   Step-Down     4.5   40   Adjustable   1.2     2250   SOIC-8 EP 
Package Availability
Type
PB free
Standard
DFN-8 x  
SOIC-8 EP x