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NCP1529: Buck Converter, DC-DC, High Efficiency, Adjustable Output Voltage, Low Ripple, 1.7 MHz, 1 A

Datasheet: Buck Converter - DC-DC, High Efficiency, Adjustable Output Voltage, Low Ripple 1.7 MHz, 1 A
Rev. 6 (284kB)
Product Overview
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The NCP1529 step-down DC-DC converter is a monolithic integrated circuit for portable applications powered from one cell Li-ion or three cell Alkaline/NiCd/NiMH batteries. The device is able to deliver up to 1.0 A on an output range externally adjustable from 0.9 V to 3.9 V or fixed at 1.2 V or 1.35 V.
It uses synchronous rectification to increase efficiency and reduce external part count. The device also has a built-in 1.7 MHz (nominal) oscillator which reduces component size by allowing a small inductor 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 NCP1529 is available in a space saving, low profile 2x2x0.5 mm UDFN6 package and TSOP-5 package.
Features   Benefits
     
  • 96% efficiency, 28 uA quiescent current, 0.3 uA shutdown current
 
  • Extends battery life and 'play-time'
  • 1.7 MHz switching frequency
 
  • Allows use of smaller inductor 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 3.9V
   
  • Best in class Low Ripple even in PFM mode
   
Applications   End Products
  • Battery powered applications power management
  • Power supply for processor with low core voltage
  • USB powered devices
  • Low Voltage DC rails power management
 
  • Cellular phones, smart phones, and PDAs
  • MP3 players and portable audio systems
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
NCP1529ASNT1G Active, Not Rec
Pb-free
Halide free
NCP1529 TSOP-5 / SOT-23-5 483 1 260 Tape and Reel 3000 $0.3333
NCP1529MU12TBG Last Shipments
Pb-free
Halide free
NCP1529 UDFN-6 517AB 1 260 Tape and Reel 3000  
NCP1529MUTBG Active, Not Rec
Pb-free
Halide free
NCP1529 UDFN-6 517AB 1 260 Tape and Reel 3000 $0.32
Market Leadtime (weeks) : 13 to 16
PandS   (2020-09-14 00:00) : >1K
FutureElectronics   (2020-08-19 00:00) : >1K
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : >1K
Market Leadtime (weeks) : 4 to 8
PandS   (2020-09-14 00:00) : <1K
Case Outlines
517AB    483   
Packages
NCP1529: Buck Converter, DC-DC, High Efficiency, Adjustable Output Voltage, Low Ripple, 1.7 MHz, 1 A
NCP1529: Buck Converter, DC-DC, High Efficiency, Adjustable Output Voltage, Low Ripple, 1.7 MHz, 1 A
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Featured Video
1 A High Efficiency Step-Down Converter Evaluation Board - NCP1529
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