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

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
  • V2 Architecture
  • 2.0% Error Amp Reference Voltage Tolerance
  • Switch Frequency Decrease of 4:1 in Short Circuit Conditions
  • BOOST pin provides additional drive voltage to the onchip NPN powertransistor
  • Sync Function
  • Shutdown pin for sleep mode
  • Thermal Shutdown
  • Soft-Start
  • NCV Prefix for Automotive and Other Applications
  • Pin Compatible with LT1375 (SO-8 Version)
  • Pb-Free Packages are Available
Benefits
  • Provides Ultra-Fast Transient Response, Improved Regulation and Simplified Design
  • Accurate Output Voltage
  • Reduces Short Circuit Power Dissipation
  • Allows Bootstrapped Operations to Maximize Efficiency
  • Parallel Supply Operation or Noise Minimization
  • Provides Power-Down Option (<85 µA Quiescent Current)
  • Protects the IC During High Temperature Operation
  • Flexibility in System Design
  • Provides the Required Site and Control Changes Required for Automotive Customers
Applications
  • Automotive Power Supplies
End Products
  • In-car Infotainment
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Buck Converter, Low Voltage, 1.5 A, 260 kHz, with Synchronization CapabilitiesNCV51411/D (229.0kB)16
Simulation Models (3)
Document TitleDocument ID/SizeRevisionRevision Date
IsSpice Reference Circuit for CS51411(DWG)CS51411_ISSPICE_REFERENCE_CIRCUIT.DWG (25.0kB)0
LIB Model for CS51411(IsSpice)CS51411.LIB (4.0kB)0
SYM Model for CS51411(IsSpice)CS51411.SYM (3.0kB)0
Package Drawings (4)
Document TitleDocument ID/SizeRevision
5X6MM, .5MM PITCH505 (33.7kB)D
SOIC 16 LEAD WIDE BODY, EXPOSED PAD751R-02 (40.0kB)B
SOIC-16 Wide Body, Exposed Pad751AG (37.6kB)B
SOIC-8 Narrow Body751-07 (62.6kB)AK
Collateral Brochures (1)
Document TitleDocument ID/SizeRevisionRevision Date
Automotive Products Selector GuideSGD516/D (1382kB)18AJul, 2016
Evaluation Board Documents (4)
Document TitleDocument ID/SizeRevisionRevision Date
CS51411EVB Bill of Materials RoHSCS51411EVB_BOM_ROHS.PDF (54.0kB)0
CS51411EVB Evaluation Board ManualCS51411EVB_MANUAL.REV1.PDF (67.0kB)1
CS51411EVB SchematicCS51411EVB_SCHEMATIC.PDF (23.0kB)0
CS51411EVB Test ProcedureCS51411EVB_TEST_PROCEDURE.PDF (189.0kB)0
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
NCV51411DR2GActiveAEC Qualified PPAP Capable Pb-free Halide freeSOIC-8751-071Tape and Reel2500$1.3866
NCV51411MNR2GActiveAEC Qualified PPAP Capable Pb-free Halide freeDFN-185051Tape and Reel2500$1.4666
NCV51411PWR2GActiveAEC Qualified PPAP Capable Pb-free Halide freeSOIC-16W751R-021Tape and Reel1000$1.3866
NCV51411DR2ObsoleteAEC Qualified PPAP CapableSOIC-8751-071Tape and Reel2500
NCV51411PWR2ObsoleteAEC Qualified PPAP CapableSOIC-16W EP751AG1Tape and Reel1000
Specifications
ProductTopologyControl ModeVCC Min (V)VCC Max (V)VO Typ (V)IO Typ (A)Efficiency (%)fSW Typ (kHz)
NCV51411DR2GStep-DownV24.5401.5260
NCV51411MNR2GStep-DownV24.5401.5260
NCV51411PWR2GStep-DownV24.5401.5260
Buck Converter, Low Voltage, 1.5 A, 260 kHz, with Synchronization Capabilities (229.0kB) NCV51411
IsSpice Reference Circuit for CS51411(DWG) NCV51411
LIB Model for CS51411(IsSpice) NCV51411
SYM Model for CS51411(IsSpice) NCV51411
Automotive Products Selector Guide NUP2105
CS51411EVB Bill of Materials RoHS NCV51411
CS51411EVB Evaluation Board Manual NCV51411
CS51411EVB Schematic NCV51411
CS51411EVB Test Procedure NCV51411
5X6MM, .5MM PITCH NCP3163
SOIC 16 LEAD WIDE BODY, EXPOSED PAD NCV8843
SOIC-8 Narrow Body CM1216
SOIC-16 Wide Body, Exposed Pad NCV7425