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NCP1593: Synchronous Buck Regulator, 1 MHz, 3.0 A

Datasheet: Synchronous Buck Regulator 1 MHz, 3 A
Rev. 2 (479kB)
Product Overview
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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   Benefits
     
  • 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   End Products
  • +5Vin buck regulator
 
  • DVD Drives and HDD
  • Notebook Computing
  • Set-Top-Box (STB)
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
NCP1593AGEVB Active
Pb-free
3 A Synchronous Buck Regulator Evaluation Board
NCP1593BGEVB Active
Pb-free
3 A Synchronous Buck Regulator Evaluation Board
Availability & Samples
Specifications
Intaractive Block Diagram
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
NCP1593AMNTWG Active
Pb-free
Halide free
NCP1593 DFN-10 485C 1 260 Tape and Reel 3000 $0.3333
NCP1593BMNTWG Active
Pb-free
Halide free
NCP1593 DFN-10 485C 1 260 Tape and Reel 3000 $0.3333
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : 4 to 8

Product
Description
Pricing ($/Unit)
Compliance
Status
Topology
Control Mode
VCC Min (V)
VCC Max (V)
VO Typ (V)
IO Typ (A)
Efficiency (%)
fSW Typ (kHz)
Package Type
NCP1593AMNTWG  
 $0.3333 
Pb
H
 Active   
Step-Down
Current Mode
4
5.5
0.6 to 5.0
3
90
1000
DFN-10
NCP1593BMNTWG  
 $0.3333 
Pb
H
 Active   
Step-Down
Current Mode
4
5.5
0.6 to 5.0
3
90
1000
DFN-10
Case Outlines
485C   
Previously Viewed Products
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Featured Video
3 A Synchronous Buck Regulator
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