lm25117psqx National Semiconductor Corporation, lm25117psqx Datasheet - Page 22

• Manufacturer Part Number: lm25117psqx
• Description: Wide Input Range Synchronous Buck Controller With Analog Current Monitor
• Manufacturer: National Semiconductor Corporation

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Cross Over
Frequency
(Open Loop
Bandwidth)
Maximum
Cross Over
Frequency
* Comprehensive Equation includes an inductor pole and a gain peaking at f
that a ceramic capacitor C
OUT2
SIMPLE FORMULA
(No ESR) is connected in parallel with C
The frequency at which 45° phase shift occurs in modulator phase charac-
teristics.
OUT1
. R
SW
22
/2, which caused by sampling effect of the current mode control. Also it assumes
ESR1
represents ESR of C
COMPREHENSIVE FORMULA*
OUT1
.