RT7237 Просмотр технического описания (PDF) - Richtek Technology
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RT7237 Datasheet PDF : 15 Pages
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RT7237C
Typical Application Circuit
VIN
4.5V to 18V
Chip Enable
CIN
10µF x 2
2 VIN
BOOT 1
RT7237C
SW 3
7 EN
CBOOT L
0.1µF 4.7µH
R1
75k
8 SS
FB 5
CSS
0.1µF
4, 9 (Exposed Pad)
GND
COMP 6
CC
3.3nF
RC
17k
R2
24k
VOUT
3.3V
COUT
22µF x 2
CP
Open
Table 1. Suggested Components Selection
VOUT (V) R1 (k) R2 (k) RC (k) CC (nF) L (H)
8
27
3
40
3.3
6.8
5
62
11.8
25
3.3
6.8
3.3
75
24
17
3.3
4.7
2.5
25.5
12
13
3.3
4.7
1.5
10.5
12
7
3.3
3.6
1.2
12
24
6
3.3
2
1
3
12
5
3.3
2
COUT (F)
22 x 2
22 x 2
22 x 2
22 x 2
22 x 2
22 x 2
22 x 2
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DS7237C-05 February 2015
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