LT3437 LINER [Linear Technology], LT3437 Datasheet - Page 21

• Manufacturer Part Number: LT3437
• Description: High Voltage 500mA, 200kHz Step-Down Switching Regulator with 100uA Quiescent Current
• Manufacturer: LINER [Linear Technology]

APPLICATIO S I FOR ATIO
U
U
C
R
C
C
C
F
W
LT3437
V
–40
100
–20
CURRENT MODE
POWER STAGE
C
80
60
40
20
Figure 10. Model for Loop Response
0
10
g
Figure 11. Overall Loop Response
m
U
= 1
Ω
g
100
1.6M
m
= 650µ
FREQUENCY (Hz)
ERROR
1k
Ω
AMP
+
–
V
C
C
R
C
I
10k
LOAD
OUT
OUT
F
C
C
= 330pF
= 1500pF
= 25k
= 3.3V
= 100µF, 0.1Ω
= 250mA
1.25V
SW
FB
100k
R1
R2
3437 F12
1M
0
–20
–40
–60
–80
–100
–120
–140
–160
–180
3437 F13
C
FB
ESR
C
OUTPUT
OUT
LT3437
21
3437f