SLUAAQ8 august   2023 TPS54202 , TPS563201 , TPS62933

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Features Description
    1. 2.1  Light Load Operation
    2. 2.2  Low Iq
    3. 2.3  Low Noise
    4. 2.4  Large Duty Operation
    5. 2.5  BST Cap Integrated
    6. 2.6  Voltage Identification Control
    7. 2.7  Synchronizable to an External Clock
    8. 2.8  Frequency Spread Spectrum
    9. 2.9  -EP -ET, and -Q1
    10. 2.10 Voltage Margining
  6. 3Control Modes Description
    1. 3.1 PCM/ACM
    2. 3.2 D-CAP2™/D-CAP3™
    3. 3.3 AECM
    4. 3.4 DCS™
    5. 3.5 Control Modes Comparison
  7. 4Specifications Comparison
  8. 5References

3 Control Modes Description

For the selection of devices, control mode is one important aspect which determines load transient performance, switching frequency accuracy and output accuracy.

Among 3 A converters in TI portfolio, the control modes can be easily divided into two categories: PCM/ACM/AECM and D-CAP2™/D-CAP3™/DCS. PCM, ACM and AECM are all fixed frequency control mode, whose advantages are frequency predictable, smaller jitter, easily SYNC to external clock and stack with another buck. D-CAP2™,D-CAP3™, and DCS control are all COT (Constant On Time) control mode, whose advantages are fast transient reponse, no need for loop compensation and small solution size.