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CS51412: Buck Regulator, Low Voltage, 1.5 A, 260 kHz, with External Bias

Datasheet: 1.5A, 260kHz and 520kHz, Low Voltage Buck Regulators with External Bias or Synchronization Capability
Rev. 21 (283.0kB)
Product Overview
»View Material Composition
» Product Change Notification
The CS5141X products are 1.5A buck regulator ICs. These devices are fixed- frequency operating at 260kHz and 520kHz. The regulators use the V2 control architecture to provide unmatched transient response, the best overall regulation and the simplest loop compensation for today's high- speed logic. These products accommodate input voltages from 4.5V to 40V.

The CS51411 and CS51413 contain synchronization circuitry. The CS51412 and CS51414 have the option of powering the controller from an external 3.3V to 6V supply in order to improve efficiency, especially in high input voltage, light load conditions.

The on-chip NPN transistor is capable of providing a minimum of 1.5A of output current, and is biased by an external "boost" capacitor to ensure saturation, thus minimizing on-chip power dissipation. Protection circuitry includes thermal shutdown, cycle-by- cycle current limiting and frequency foldback. The CS51411 and CS51413 are functionally pin-compatible with the LT1375. The CS51412 and CS51414 are functionally pin-compatible with the LT1376.
Features   Benefits
     
  • V2 Architecture Provides Ultra-Fast Transient Response, Improved Regulation and Simplified Design
 
  • Reduced output capacitance
  • 2.0% Error Amp Reference Voltage Tolerance
 
  • Accurate Output Voltage
  • Switch Frequency Decrease of 4:1 in Short Circuit Conditions
 
  • Reduces Short Circuit PowerDissipation
  • BOOST pin for Bootstrapped Operation
 
  • Maximized Efficiency
  • Synchronization Function
 
  • Parallel Supply Operation or Noise Minimization
  • Shutdown Lead Provides Power-Down Option
 
  • Increased system flexibility
  • 85uA Quiescent Current During Power-Down
 
  • Low power dissipation in stand-by mode
  • Thermal Shutdown
 
  • Circuit Protection
  • Soft Start
 
  • Increased system flexibility
  • Pin-Compatible with LT1375 and LT1376
 
  • Easy drop in replacement
  • Pb-Free Packages are Available
   
Applications   End Products
  • Distributed Power
 
  • Battery Charger
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
CS51412ED8G Obsolete
AEC Qualified
PPAP Capable
Pb-free
Halide free
CS51412 SOIC-8 751-07 1 260 Tube 98  
CS51412EDR8G Obsolete
AEC Qualified
PPAP Capable
Pb-free
Halide free
CS51412 SOIC-8 751-07 1 260 Tape and Reel 2500  
CS51412EMNR2G Obsolete
AEC Qualified
PPAP Capable
Pb-free
Halide free
CS51412 DFN-18 505 1 260 Tape and Reel 2500  
CS51412GD8G Obsolete 
AEC Qualified
PPAP Capable
Pb-free
Halide free
CS51412 SOIC-8 751-07 1 260 Tube 98  
CS51412GDR8G Obsolete
AEC Qualified
PPAP Capable
Pb-free
Halide free
CS51412 SOIC-8 751-07 1 260 Tape and Reel 2500  
CS51412GMNR2G Obsolete
AEC Qualified
PPAP Capable
Pb-free
Halide free
CS51412 DFN-18 505 1 260 Tape and Reel 2500  
CS51412ED8 Obsolete
CS51412 SOIC-8 751-07 1 235 Tube 98  
CS51412EDR8 Obsolete
CS51412 SOIC-8 751-07 1 235 Tape and Reel 2500  
CS51412GD8 Obsolete
CS51412 SOIC-8 751-07 1 235 Tube 98  
CS51412GDR8 Obsolete
CS51412 SOIC-8 751-07 1 235 Tape and Reel 2500  
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : <100
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Case Outlines
751-07    505   
Packages
CS51412: Buck Regulator, Low Voltage, 1.5 A, 260 kHz, with External Bias
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