NCP1593: Synchronous Buck Regulator, 1 MHz, 3.0 A

Description: The NCP1593 is a fixed 1 MHz, high output current,...
  • The NCP1593 is a fixed 1 MHz, high output current, synchronous PWM converter that integrates a low-resistance, high-side P-channel MOSFET and a low-side N-channel MOSFET. The NCP1593 utilizes internally compensated current mode control to provide good transient response, ease of implementation and excellent loop stability. It regulates input voltages from 4.0 V to 5.5 V down to an output voltage as low as 0.6 V and is able to supply up to 3 A of load current. The NCP1593 includes an internally fixed switching frequency (FSW), and an internal soft-start to limit inrush current. Other features include cycle-by-cycle current limiting, 100% duty cycle operation, short- circuit protection, power saving mode and thermal shutdown.
  • Features
  • Wide Input Voltage Range: from 4.0 V to 5.5 V - Ability to run from various input voltage sources
  • Internal 90 mΩ High-Side P-Channel MOSFET and 70 mΩ Low-Side N-Channel MOSFET - High efficiency and good thermal performance
  • Fixed 1 MHz Switching Frequency - Small output inductor/capacitor and low ouptut ripple voltage
  • Cycle-by-Cycle Current Limiting - Protection feature
  • Hiccup Mode Short-Circuit Protection - Protection feature
  • Overtemperature Protection - Protection feature
  • Internal Fixed SoftStart with External Adjustment - Ability to reduce external components with fixed internal SS time or adjust externally
  • Start-up with Pre-Biased Output Load - Protection feature
  • Adjustable Output Voltage Down to 0.6 V - Ability to regulate low output voltages
  • Auto Power Saving Mode During Light Load - Increased efficiency at light load
  • 100% Duty Cycle Operation - Extends battery life
  • Applications
  • +5Vin buck regulator
  • End Products
  • DVD Drives and HDD
  • Notebook Computing
  • Set-Top-Box (STB)
  • Technical Documentation & Design Resources
    Evaluation/Development Tool Information
    Product Change Notification
    Availability and Samples
    NCP1593AMNTWG
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Synchronous Buck Regulator, 1 MHz, 3.0 A
  • Package Type: DFN-10
  • Package Case Outline: 485C
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • Inventory

  • Market Leadtime (weeks):2 to 4
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  • Digikey:>1K
  • FutureElectronics:>1K
  • Mouser:>1K
  • Newark:>1K
  • NCP1593BMNTWG
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Synchronous Buck Regulator, 1 MHz, 3.0 A
  • Package Type: DFN-10
  • Package Case Outline: 485C
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • Inventory

  • Market Leadtime (weeks):13 to 16
  • Arrow:0
  • Digikey:>1K
  • Mouser:>1K
  • Newark:>1K
  • Specifications
  • Topology: Step-Down 
  • Control Mode: Current Mode 
  • VCC Min (V):
  • VCC Max (V): 5.5 
  • VO Typ (V): 0.6 to 5.0 
  • IO Typ (A):
  • Efficiency (%): 90 
  • fSW Typ (kHz): 1000 
  • Package Type: DFN-10 
  • ON Semiconductor Full Web Site