Energy Efficient Innovations

Product Overview  


For complete documentation, see the data sheet.

Printed On: 7/11/2015

NCV890130: Automotive Switching Regulator, 1.2 A, 2 MHz, 45 V Load Dump

Product Description
The NCV890130 is a fixed-frequency, monolithic, Buck switching regulator intended for Automotive, battery-connected applications that must operate with up to a 32 V input supply. The regulator is suitable for systems with low noise and small form factor requirements often encountered in automotive driver information systems. The NCV890130 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 NCV890130 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 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
  • 1.4 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
Applications   End Products
  • Audio
  • Infotainment
  • Safety - Vision Systems
  • Instrumentation
 
  • 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, 1.2 A, 2 MHz, 45 V Load Dump   Step-Down   Current Mode   4.5   45   Adjustable   1.2     2200   DFN-8 
 AEC Qualified 
 PPAP Capable 
 Pb-free 
 Active     Automotive Switching Regulator, 1.2 A, 2 MHz, 45 V Load Dump   Step-Down   Current Mode   4.5   45   Adjustable   1.2     2200   SOIC-8 EP 
Package Availability
Type
PB free
Standard
DFN-8 x  
SOIC-8 EP x