Datasheet

ea
R2
A1 = gm Ro| | R3
R1 + R2
´ ´
ea
R2
A0 = gm Ro
R1 + R2
´ ´
Z1
P1 P2
s
1
2
EA A0
s s
1 1
2 2
f
f f
æ ö
+
ç ÷
p ´
è ø
= ´
æ ö æ ö
+ ´ +
ç ÷ ç ÷
p ´ p ´
è ø è ø
ea
OUT
gm
C =
2 BW (Hz)´p
ea
Aol(V/V)
Ro =
gm
A0
A1
P1
Z1
P2
Aol
BW
Vref
V
O
R1
R3
C1
C2
R2
C
O
R
O
gm
ea
COMP
VSENSE
Type2A Type2B Type1
C2
R3
C1
TPS54160
SLVS795E –OCTOBER 2008–REVISED SEPTEMBER 2013 www.ti.com
DETAILED DESCRIPTION (continued)
Equation 18 through Equation 27 are provided as a reference for those who prefer to compensate using the
preferred methods. Those who prefer to use prescribed method use the method outlined in the application
section or use switched information.
Figure 49. Types of Frequency Compensation
Figure 50. Frequency Response of the Type 2A and Type 2B Frequency Compensation
(18)
(19)
(20)
(21)
(22)
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