TPS7A41

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SBVS183

– DECEMBER 2011

INPUT AND OUTPUT CAPACITOR REQUIREMENTS

The TPS7A4101 high voltage linear regulator achieves stability with a minimum output capacitance of 4.7

µF and

input capacitance of 1

µF; however, it is highly recommended to use 10-μF output and input capacitors to

maximize ac performance.

BYPASS CAPACITOR REQUIREMENTS

bypass capacitor to maximize ac performance (including line transient, noise and PSRR).

MAXIMUM AC PERFORMANCE

In order to maximize line transient, noise, and PSRR performance, it is recommended to include 10-

μF (or

higher) input and output capacitors, and a 10-nF bypass capacitor; see Figure 12. The solution shown delivers

minimum noise levels of 58

TRANSIENT RESPONSE

As with any regulator, increasing the size of the output capacitor reduces over/undershoot magnitude but

increases duration of the transient response.

noted in .

Copyright

© 2011, Texas Instruments Incorporated

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