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參數資料
型號: TPS54320RHLR
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩壓器
英文描述: SWITCHING REGULATOR, 1320 kHz SWITCHING FREQ-MAX, PQCC14
封裝: 3.50 X 3.50 MM, GREEN, PLASTIC, QFN-14
文件頁數: 11/39頁
文件大小: 1358K
代理商: TPS54320RHLR
VOUT
RESR
CO
R L
VC
gm ps
VOUT
RESR
CO
RL
VC
gm ps
fp
fz
Adc
s
1+
2
z
VOUT
= Adc
VC
s
1+
2
p
÷
è
÷
è
p
ps
L
Adc = gm
R
O
L
1
p =
C
R
2
p
O
ESR
1
z =
C
R
2
p
www.ti.com
SLVS982A – AUGUST 2010 – REVISED SEPTEMBER 2010
Figure 31. Simplified Small Signal Model for Peak Current Mode Control
Figure 32. Simplified Frequency Response for Peak Current Mode Control
(10)
(11)
(12)
(13)
Where
gmea is the GM amplifier gain (1300mA/V)
gmps is the power stage gain (12A/V).
RL is the load resistance
CO is the output capacitance.
RESR is the equivalent series resistance of the output capacitor.
Copyright 2010, Texas Instruments Incorporated
19
Product Folder Link(s) :TPS54320
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