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CS51031: Hysteretic PFET Buck Controller

Datasheet: Fast P-Ch FET Buck Controller
Rev. 11 (95.0kB)
Product Overview
»View Reliability Data
»View Material Composition
» Product Change Notification
The Hysteretic PFET Buck Controller is a switching controller for use in dc-dc converters. It can be used in the buck topology with a minimum number of external components. This Hysteretic PFET Buck Controller consists of a VCC monitor for control-ling the state of the device, 1.0 A power driver for controlling the gate of a discrete P-channel transistor, fixed frequency oscillator, short circuit protection timer, programmable soft start, precision reference, fast output voltage monitoring comparator and output stage driver logic with latch.

The high frequency oscillator allows the use of small inductors and output capacitors, minimizing PC board area and systems cost. The programmable soft start reduces current surges at start up. The short circuit protection timer significantly reduces the duty cycle to approximately 1/30 of its cycle during short circuit conditions.

The CS51031 is available in 8 Lead SO plastic packages.
Features
 
  • 1A Totem Pole Output Driver
  • High Speed Oscillator (700 Hz max)
  • No Stability Compensation Required
  • Lossless Short Circuit Protection
  • VCC Monitor
  • 2% Precision Reference
  • Programmable Soft Start
  • Wide Ambient Temperature Range:
    Industrial Grade: -40°C to 85°C
    Commercial Grade: 0°C to 70°C
  • Pb-Free Packages are Available
Applications   End Products
  • FPGA, DSP, I/O and Core
 
  • Graphics Card
Technical Documentation & Design Resources
Data Sheets (1) Evaluation Board Documents (2)
Package Drawings (1)  
Availability & Samples
Specifications
Case Outlines
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
CS51031GD8G Obsolete 
AEC Qualified
PPAP Capable
Pb-free
Halide free
CS51031, TA= 0°C to 70°C SOIC-8 751-07 1 260 Tube 98  
CS51031GDR8G Obsolete 
AEC Qualified
PPAP Capable
Pb-free
Halide free
CS51031, TA= 0°C to 70°C SOIC-8 751-07 1 260 Tape and Reel 2500  
CS51031YD8G Obsolete 
AEC Qualified
PPAP Capable
Pb-free
Halide free
CS51031, TA= -40°C to 85°C SOIC-8 751-07 1 260 Tube 98  
CS51031YDR8G Active
Pb-free
Halide free
CS51031, TA= -40°C to 85°C SOIC-8 751-07 1 260 Tape and Reel 2500 $0.6667
CS51031GD8 Obsolete
CS51031 SOIC-8 751-07 1 235 Tube 98  
CS51031GDR8 Obsolete
CS51031 SOIC-8 751-07 1 235 Tape and Reel 2500  
CS51031YD8 Obsolete
CS51031 SOIC-8 751-07 1 235 Tube 98  
CS51031YDR8 Obsolete
AEC Qualified
PPAP Capable
CS51031 SOIC-8 751-07 1 235 Tape and Reel 2500  
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : In Stock
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : <100
Market Leadtime (weeks) : 2 to 4
ON Semiconductor   (2020-09-02 00:00) : 5,000
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

Product
Description
Pricing ($/Unit)
Compliance
Status
Topology
Phases
Control Mode
VCC Min (V)
VCC Max (V)
fSW Typ (kHz)
Package Type
CS51031YDR8G  
 $0.6667 
Pb
H
 Active   
Step-Down
1
Hysteretic
4.5
16
200
SOIC-8
Case Outlines
751-07   
Packages
CS51031: Hysteretic PFET Buck Controller
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