NCP1522B: Buck Converter, DC-DC, 3 MHz, 600 mA

Description: The NCP1522B step- down DC-DC converter is a monol...
  • The NCP1522B step- down DC-DC converter is a monolithic integrated circuit optimized for portable applications powered from one cell Li- Ion or three cell Alkaline/NiCd/NiMH batteries. The part, available in adjustable output voltage versions ranging from 0.9 V to 3.3 V, is able to deliver up to 600 mA. It uses synchronous rectification to increase efficiency and reduce external part count. The device also has a built- in 3 MHz (nominal) oscillator which reduces component size by allowing smaller inductors and capacitors. Automatic switching PWM/PFM mode offers improved system efficiency. Additional features include integrated soft- start, cycle- by- cycle current limiting and thermal shutdown protection. The NCP1522B is available in a space saving, low profile TSOP5 and UDFN6 packages.
  • Features
  • 94% efficiency, 50 uA quiescent current, 0.3 uA shutdown current - Extends battery life and 'play-time'
  • 3.0 MHz switching frequency - Allows use of smaller inductor (down to 1uH) and capacitor
  • Auto-switching between PWM and PFM mode at light load conditions - Low power consumption at light loading
  • Adjustable output voltage from 0.9V to 3.3V
  • Applications
  • Power supply for application processor
  • Power supply for processor with low core voltage
  • End Products
  • Cellular phones, smart phones, and PDAs
  • MP3 players and portable audio systems
  • Digital still cameras and video cameras
  • Technical Documentation & Design Resources
    Evaluation/Development Tool Information
    Product Change Notification
    Availability and Samples
    NCP1522BMUTBG
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Buck Converter, DC-DC, 3 MHz, 600 mA
  • Package Type: UDFN-6
  • Package Case Outline: 517AB
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • Inventory

  • Market Leadtime (weeks):17 to 20
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  • Digikey:>1K
  • PandS:>1K
  • NCP1522BSNT1G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Buck Converter, DC-DC, 3 MHz, 600 mA
  • Package Type: TSOP-5 / SOT-23-5
  • Package Case Outline: 483
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • Inventory

  • Market Leadtime (weeks):Contact Factory
  • Arrow:0
  • Digikey:>10K
  • FutureElectronics:>1K
  • Newark:>1K
  • PandS:>1K
  • Specifications
  • Topology: Step-Down 
  • Control Mode: Voltage Mode 
  • VCC Min (V): 2.7 
  • VCC Max (V): 5.5 
  • VO Typ (V): 0.9 to 3.3 
  • IO Typ (A): 0.6 
  • Efficiency (%): 95 
  • fSW Typ (kHz): 3000 
  • Package Type: UDFN-6  TSOP-5 / SOT-23-5 
  • ON Semiconductor Full Web Site