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

Datasheet: Buck Switching Regulator Automotive 1.2 A, 2 MHz
Rev. 3 (210kB)
Product Overview
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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
  • 1.4 ms Internal Soft-Start
 
  • Limits inrush current
  • Thermal Shutdown (TSD)
 
  • Thermally protects IC
Applications   End Products
  • Audio
  • Infotainment
  • Safety - Vision Systems
  • Instrumentation
 
  • Automotive
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
NV890130PDR2GEVB Active
Pb-free
Fixed-Frequency Monolithic Buck Switching Regulator Evaluation Board
Product
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Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
NCV890130MWTXG Last Shipments
AEC Qualified
PPAP Capable
Pb-free
Halide free
NCV890130 DFN-8 506BY 1 260 Tape and Reel 3000  
NCV890130PDR2G Last Shipments
AEC Qualified
PPAP Capable
Pb-free
NCV890130 SOIC-8 EP 751AC 2 260 Tape and Reel 2500  
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Case Outlines
506BY    751AC   
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Fixed-Frequency Monolithic Buck Switching Regulator - NV890130PDR2GEVB Test Procedure
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