NCV891130: 1.2 A, 2 MHz Low-Iq Dual-Mode Step-Down Regulator for Automotive

Description: The NCV891130 is a Dual Mode regulator intended fo...
  • The NCV891130 is a Dual Mode regulator intended for Automotive, battery-connected applications that must operate with up to a 45V input supply. Depending on the output load, it operates either as a PWM Buck Converter or as a Low Drop-Out Linear Regulator, and is suitable for systems with low noise and Low Quiescent Current requirements often encountered in automotive driver information systems. A reset pin (with fixed delay) simplifies interfacing with a microcontroller. The NCV891130 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
  • 30 µA Iq in Light Load Condition - Low Iq linear mode at light load
  • 1.2 A maximum output current in PWM mode - Efficient switching mode up to 1.2 A
  • Internal N-channel Power Switch - No external Mosfet needed
  • VIN operating range 3.7 V to 36.5 V - Designed to run on car battery
  • Logic level Enable pin can be tied to battery - Versatile EN pin
  • Fixed Output Voltage of 5.0 V, 4.0 V or 3.3 V - Simplified design
  • 2 MHz Free-running Switching Frequency - Smaller inductor and capacitors, faster response, smaller ripple
  • NCV Prefix for Automotive Requiring Site and Control Changes - PPAP available
  • Withstands Load Dump to 45 V
  • +/-2 % Output Voltage Accuracy
  • Applications
  • Radio
  • Infotainment
  • Instrument clusters
  • Telematics
  • Safety - Vision Systems
  • End Products
  • Automotive
  • Technical Documentation & Design Resources
    Availability and Samples
    NCV891130PD33R2G
  • Status: Active
  • Compliance: AEC Qualified PPAP Capable Pb-free Halide free 
  • Description: 1.2 A, 2 MHz Low-Iq Dual-Mode Step-Down Regulator for Automotive, 2MHZ SMPS HYBRID LDO LOW IQ 3.3V
  • Package Type: SOIC-8 EP
  • Package Case Outline: 751AC
  • MSL: 2
  • Container Type: REEL
  • Container Qty: 2500
  • NCV891130PD40R2G
  • Status: Active
  • Compliance: AEC Qualified PPAP Capable Pb-free Halide free 
  • Description: 1.2 A, 2 MHz Low-Iq Dual-Mode Step-Down Regulator for Automotive, 2MHZ SMPS HYBRID LOW IQ LDO 4.0V
  • Package Type: SOIC-8 EP
  • Package Case Outline: 751AC
  • MSL: 2
  • Container Type: REEL
  • Container Qty: 2500
  • NCV891130PD50R2G
  • Status: Active
  • Compliance: AEC Qualified PPAP Capable Pb-free Halide free 
  • Description: 1.2 A, 2 MHz Low-Iq Dual-Mode Step-Down Regulator for Automotive, 2MHZ SMPS HYBRID LOW IQ LDO 5.0V
  • Package Type: SOIC-8 EP
  • Package Case Outline: 751AC
  • MSL: 2
  • Container Type: REEL
  • Container Qty: 2500
  • Inventory

  • Market Leadtime (weeks):17 to 20
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  • FutureElectronics:>1K
  • Specifications
  • Topology: Step-Down 
  • Control Mode: Current Mode 
  • VCC Min (V): 3.7 
  • VCC Max (V): 45 
  • VO Typ (V): 3.3 
  • IO Typ (A): 1.2 
  • Efficiency (%): 85 
  • fSW Typ (kHz): 2000 
  • Package Type: SOIC-8 EP 
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