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LT3437IDD Fiches technique(PDF) 21 Page - Linear Technology

No de pièce LT3437IDD
Description  High Voltage 500mA, 200kHz Step-Down Switching Regulator with 100uA Quiescent Current
PDF  24 Pages
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Fabricant  LINER [Linear Technology]
Site Internet  http://www.linear.com
Logo LINER - Linear Technology

LT3437IDD Fiches technique(HTML) 21 Page - Linear Technology

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LT3437
21
3437f
APPLICATIO S I FOR ATIO
Figure 10. Model for Loop Response
–
+
CURRENT MODE
POWER STAGE
gm = 1
gm = 650µ
1.25V
VC
LT3437
ERROR
AMP
1.6M
RC
R1
FB
SW
ESR
OUTPUT
R2
COUT
3437 F13
CFB
CF
CC
Figure 11. Overall Loop Response
FREQUENCY (Hz)
–180
–160
–140
–120
–100
–80
–60
–40
–20
0
–40
0
60
40
20
–20
80
100
100
1k
10k
100k
3437 F12
1M
10
VOUT = 3.3V
COUT = 100µF, 0.1Ω
CF = 330pF
RC = 25k
CC = 1500pF
ILOAD = 250mA



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