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LTC1148CS датащи(PDF) 18 Page - Linear Technology

номер детали LTC1148CS
подробное описание детали  High Efficiency Synchronous Step-Down Switching Regulators
PDF  20 Pages
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производитель  LINER [Linear Technology]
домашняя страница  http://www.linear.com
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LTC1148CS датащи(HTML) 18 Page - Linear Technology

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18
LTC1148
LTC1148-3.3/LTC1148-5
TYPICAL APPLICATIO S
1
2
3
4
5
6
7
14
13
12
11
10
9
8
P-DRIVE
NC
VIN
CT
INTVCC
ITH
SENSE–
N-DRIVE
NC
PGND
SGND
SHUTDOWN
NC
SENSE+
LTC1148-3.3
0.1
µF
1000pF
RSENSE**
0.02
Ω
SHUTDOWN
*L
10
µH
Si9804DY
D1
MBRS140T3
Si9803DY
+
CIN
100
µF
20V
×2
VIN
5V
COUT
220
µF
10V
AVX
×2
VOUT
3.3V/4.5A
CC
3300pF
RC
470
Ω
CT
270pF
NPO
*COILTRONICS CTX10-5P
**KRL SP-1-C1-0R020
LTC1148 • F15
Figure 15. High Efficiency 5V to 3.3V/4.5A Converter
1
2
3
4
5
6
7
14
13
12
11
10
9
8
P-DRIVE
NC
VIN
CT
INTVCC
ITH
SENSE–
N-DRIVE
NC
PGND
SGND
SHUTDOWN
VFB
SENSE+
LTC1148
1
µF
0.1
µF
RSENSE**
0.082
Ω
SHUTDOWN
L2
50
µH
+
VIN
4V TO 14V
VOUT
5V/1A
CC
3300pF
RC
1k
CT
390pF
LTC1148 • F16
Si4435DY
CIN
100
µF
20V
100pF
220
µF*
10V
OS-CON
D1
MBRS140T3
R1
25k
1%
R2
75k
1%
+
COUT
220
µF
10V
OS-CON
L1
50
µH
*LOW ESR REQUIRED
**KRL NP-1A-C1-0R082J
Si4412DY
VOUT
1N4148
Figure 16. 4V to 14V Input Voltage to 5V/1A Regulator with Current Foldback



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