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A7986ATR Datasheet(PDF) 24 Page - STMicroelectronics

Part # A7986ATR
Description  3 A step-down switching regulator for automotive applications
PDF  42 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

A7986ATR Datasheet(HTML) 24 Page - STMicroelectronics

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Application information
A7986A
24/42
DocID022801 Rev 5
Figure 13. Type II compensation network
The singularities of the network are:
Equation 29
In Figure 14, the Bode diagram of the PWM and LC filter transfer function (GPW0 · GLC(f))
and the open loop gain (GLOOP(f) = GPW0 · GLC(f) · GTYPEII(f)) are drawn.
Figure 14. Open loop gain: module Bode diagram
f
Z1
1
2
π R
4
C
4
⋅⋅
------------------------------
=
f
P0
0
=
f
P1
1
2
π R
4
C
4
C
5
⋅
C
4
C
5
+
--------------------
⋅⋅
--------------------------------------------
=
,,



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