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Product Overview  


For complete documentation, see the data sheet.

Printed On: 7/11/2015

NCV51411: Buck Converter, Low Voltage, 1.5 A, 260 kHz, with Synchronization Capabilities

Product Description
The NCV51411 is a 1.5A buck regulator IC operating at a fixed-frequency of 260 kHz. The device uses V2 control architecture to provide unmatched transient response, optimum overall regulation and simple loop compensation. The NCV51411 accommodates input voltages from 4.5V to 40V and includes an input for synchronization to an external oscillator. NCV51411 is certified for Automotive applications, and is also available in commercial grade as CS51411.
Features   Benefits
     
  • V2 Architecture
 
  • Provides Ultra-Fast Transient Response, Improved Regulation and Simplified Design
  • 2.0% Error Amp Reference Voltage Tolerance
 
  • Accurate Output Voltage
  • Switch Frequency Decrease of 4:1 in Short Circuit Conditions
 
  • Reduces Short Circuit Power Dissipation
  • BOOST pin provides additional drive voltage to the onchip NPN powertransistor
 
  • Allows Bootstrapped Operations to Maximize Efficiency
  • Sync Function
 
  • Parallel Supply Operation or Noise Minimization
  • Shutdown pin for sleep mode
 
  • Provides Power-Down Option (<85 µA Quiescent Current)
  • Thermal Shutdown
 
  • Protects the IC During High Temperature Operation
  • Soft-Start
 
  • Flexibility in System Design
  • NCV Prefix for Automotive and Other Applications
 
  • Provides the Required Site and Control Changes Required for Automotive Customers
  • Pin Compatible with LT1375 (SO-8 Version)
   
Applications   End Products
  • Automotive Power Supplies
 
  • In-car Infotainment
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 
 Halide free 
 Active     Buck Converter, Low Voltage, 1.5 A, 260 kHz, with Synchronization Capabilities   Step-Down   V2   4.5   40     1.5     260   SOIC-8 
 AEC Qualified 
 PPAP Capable 
 Pb-free 
 Halide free 
 Active     Buck Converter, Low Voltage, 1.5 A, 260 kHz, with Synchronization Capabilities   Step-Down   V2   4.5   40     1.5     260   DFN-18 
 AEC Qualified 
 PPAP Capable 
 Pb-free 
 Halide free 
 Active     Buck Converter, Low Voltage, 1.5 A, 260 kHz, with Synchronization Capabilities   Step-Down   V2   4.5   40     1.5     260   SOIC-16W 
Package Availability
Type
PB free
Standard
SOIC-8 x x
DFN-18 x  
SOIC-16W EP   x
SOIC-16W x