TPS40131 Two-Phase Synchronous Buck Controller w/Integrated Mosfet Drivers | TI.com

TPS40131 (ACTIVE)

Two-Phase Synchronous Buck Controller w/Integrated Mosfet Drivers

Two-Phase Synchronous Buck Controller w/Integrated Mosfet Drivers - TPS40131
 

Recommended alternative parts

  • TPS40322  - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. 

Description

The TPS40131 is a two-phase synchronous buck controller thatis optimized for low-output voltage, high-output current applications powered from a supply between 1 V and 40 V. A multi-phase converter offers several advantages over a single power stage including lower current ripple on the input and output capacitors, faster transient response to load steps, improved power handling capabilities, and higher system efficiency.

Each phase can be operated at a switching frequency up to 1 MHz, resulting in an effective ripple frequency of up to 2 MHz at the input and the output. The two phases operates 180 degrees out-of-phase.

Features

  • Supports 5-V Output
  • Two-Phase InterleavedOperation
  • Operates With Pre-Biased Outputs
  • 1-V to 40-V Power Stage Operation Range
  • Requires VIN5 @ 50 mA (typ) Depending on External MOSFETs and Switching Frequency
  • 10-µA Shutdown Current
  • Programmable Switching Frequency up to 1 MHz/Phase
  • Current Mode Control with Forced Current Sharing
  • Better than 1% Internal 0.7-V Reference
  • Resistive Divider Sets Direct Output Over Voltage Threshold.
  • Programmable Input Undervoltage Lockout
  • True Remote Sensing Differential Amplifier
  • Resistive or Inductor’s DCR Current Sensing
  • 32-Pin QFN Package
  • Can Be Used with TPS40120 to Provide a 6-Bit Digitally Controlled Output
  • APPLICATIONS
    • Point-of-Load Converter
    • Graphic Cards
    • Internet Servers
    • Networking Equipment
    • Telecommunications Equipment
    • DC Power Distributed Systems

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Parametrics Compare all products in Buck Controller (External Switch)

 
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iout (Max) (A)
Regulated Outputs (#)
Number of Phases
Switching Frequency (Min) (kHz)
Switching Frequency (Max) (kHz)
Iq (Typ) (mA)
Features
Duty Cycle (Max) (%)
Operating Temperature Range (C)
Rating
Package Group
Control Mode
TPS40131
1    
40    
0.7    
5.8    
50    
2    
2    
100    
1000    
1    
Enable
Frequency Synchronization
Phase Interleaving
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification    
87.5    
-40 to 85    
Catalog    
VQFN | 32    
Current Mode