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NCV890204: Automotive Switching Regulator, Buck, 2.0 A, 2 MHz, Spread Spectrum

Datasheet: Buck Switching Regulator Automotive, Programmable, Spread Spectrum, Adjustable RSTB 2.0 A, 2 MHz
Rev. 4 (364kB)
Product Overview
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The NCV890204 is a fixed−frequency, monolithic, Buck switching regulator intended for Automotive, battery−connected applications that must operate with up to a 36 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 NCV890204 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. A Reset pin signals when the output is in regulation, and a pin is provided to adjust the delay before the RSTB signal goes high. The NCV890204 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
     
  • Adjustable Spread Spectrum
 
  • EMI Reduction
  • 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
   
  • 2 MHz Free−running Switching Frequency
   
  • Reset with Adjustable Delay
   
  • 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
   
  • Output Voltage Adjustable Down to 0.8 V
   
  • 1.4 Millisecond Internal Soft−Start
   
  • Thermal Shutdown (TSD)
   
  • Low Shutdown Current
   
  • NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements
   
  • Wettable Flanks DFN (pin edge plating)
   
  • These Devices are Pb−Free and are RoHS Compliant
   
Applications   End Products
  • Audio
  • Infotainment
  • Safety − Vision Systems
  • Instrumentation
 
  • Automotive
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
NCV890204MWGEVB Active
Pb-free
Automotive Switching Regulator, Buck, 2.0 A, 2 MHz, Spread Spectrum Evaluation Board
Availability & Samples
Specifications
Interactive Block Diagram
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
NCV890204MWR2G Active
AEC Qualified
PPAP Capable
Pb-free
Halide free
NCV890204 DFN-12 506CE 1 260 Tape and Reel 3000 $1.6
Market Leadtime (weeks) : Contact Factory

Product
Description
Pricing ($/Unit)
Compliance
Status
Topology
Control Mode
VCC Min (V)
VCC Max (V)
VO Typ (V)
IO Typ (A)
Efficiency (%)
fSW Typ (kHz)
Package Type
NCV890204MWR2G  
 $1.6 
Pb
A
H
P
 Active   
Step-Down
Current Mode
4.5
40
Adjustable
2
-
2000
DFN-12
Case Outlines
506CE   
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2A/2MHz Automotive Switching Buck Regulator, Spread Spectrum Evaluation Board - NCV890204MWGEVB
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