TPS54160_08 Datasheet, PDF (27/47 Pages) Texas Instruments – 1.5-A, 60V STEP DOWN SWIFT™ DC/DC CONVERTER WITH ECO-MODE™

TPS54160
www.ti.com .......................................................................................................................................... SLVS795B – OCTOBER 2008 – REVISED DECEMBER 2008
DETAILED DESCRIPTION (continued)
Ro = ^Aol(V/V)
gm_ea
(18)
C_OUT
=
2p
gm_ea
´ BW (Hz)
(19)
EA = A0 ´
æ
ç¹⁺
è
2p
s
´ f_Z1
ö
÷
ø
æ
ç¹
+
è
s
2p ´
f_P1
ö
÷
´
ø
æ
ç¹
+
è
2p
s
´ f_P2
ö
÷
ø
(20)
A0 = gm_ea
´ Ro ´
R2
R1 + R2
(21)
A1 = gm_ea
´ Ro| | R3 ´
R2
R1 + R2
(22)
1
P1 =
2p ´ Ro ´ C1
(23)
1
Z1 =
2p ´ R3 ´ C1
(24)
P2 =
1
type 2a
2p ´ R3 | | R ´ (C2 + C_OUT )
(25)
P2 =
1
type 2b
2p ´ R3 | | R ´ C_OUT
(26)
P2 =
1
type 1
2p ´ R ´ (C2 + C_OUT )
(27)
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