SLYT710B september   2017  – august 2023 LM22670 , LM25145 , LM2696 , LM3100 , LM3150 , LM3475 , LM3485 , LM5017 , LM5116 , LM5119 , LM5140-Q1 , LM5145 , TPS40040 , TPS40057 , TPS40170 , TPS51116 , TPS53014 , TPS53219A , TPS53355 , TPS54325 , TPS54336A , TPS543B20 , TPS543C20 , TPS543C20A , TPS54478 , TPS54610 , TPS54620 , TPS548A20 , TPS548D22 , TPS54A20 , TPS56121 , TPS56C215 , TPS62097 , TPS62130 , TPS82130

 

  1.   1
  2. Overview
  3. Voltage mode
  4. Voltage mode with voltage feed-forward
  5. Peak current mode
  6. Average current mode
  7. Emulated current mode
  8. Internally-compensated advanced current mode (ACM)
  9. Hysteretic control mode
  10. Constant on-time
  11. 10Constant on-time with emulated ripple mode
  12. 11DCS-Control™: Direct control with seamless transition into power-save mode
  13. 12Direct connection to the output capacitor (D-CAP™)
  14. 13D-CAP+™
  15. 14D-CAP2™
  16. 15D-CAP3™
  17. 16D-CAP4™

D-CAP4

D-CAP4 includes the advantages as D-CAP3, but desensitizes the loop gain to the output voltage in order to improve the transient response at higher output voltages. The ramp injection principle is the same as D-CAP3, except the ramp common mode and amplitude are independent of the output voltage. The ramp common mode is inversely proportional to (1-D), keeping ramp amplitude constant, so there is less need to adjust the ramp for different output voltages.

When to use: When fast transient response time is needed with higher output voltages, like 3.3 V or 5 V.

Popular devices: TPS54KB20

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