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1308AI 数据表(PDF) 10 Page - Linear Technology

部件名 1308AI
功能描述  High Current, Micropower Single Cell, 600kHz DC/DC Converters
PDF  20 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

1308AI 数据表(HTML) 10 Page - Linear Technology

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10
LT1308A/LT1308B
1308abfa
Figure 9. Recommended Component Placement for SEPIC
Figure 8. SEPIC (Single-Ended Primary
Inductance Converter) Converts 3V to 10V
Input to a 5V/500mA Regulated Output
APPLICATIONS INFORMATION
1
2
14
13
3
4
12
11
10
5
6
7
9
8
L1
C2
D1
LBO
LBI
LT1308A
LT1308B
VOUT
VIN
GND
SHUTDOWN
R1
R2
MULTIPLE
VIAs
GROUND PLANE
1308 F07
+
C1
+
A SEPIC (Single-Ended Primary Inductance Converter)
schematic is shown in Figure 8. This converter topology
produces a regulated output over an input voltage range
that spans (i.e., can be higher or lower than) the output.
Recommended component placement for an SO-8 pack-
age SEPIC is shown in Figure 9.
1
2
8
7
3
4
6
5
C3
L1A
L1B
D1
LBO
LBI
LT1308A
LT1308B
VOUT
VIN
GND
SHUTDOWN
R1
R2
GROUND PLANE
1308 F09
MULTIPLE
VIAs
+
C2
C1
+
VIN
SW
FB
LT1308B
L1A
CTX10-2
L1B
D1
47k
R2
100k
R1
309k
680pF
1308A/B F08
C1
47
μF
C3
220
μF
6.3V
C2
4.7
μF
CERAMIC
VOUT
5V
500mA
VIN
3V TO
10V
VC
GND
SHDN
SHUTDOWN
C1: AVX TAJC476M016
C2: TAIYO YUDEN EMK325BJ475(X5R)
C3: AVX TPSD227M006
+
+
D1: IR 10BQ015
L1: COILTRONICS CTX10-2
Figure 7. Recommended Component
Placement for TSSOP Boost Converter.
Placement is Similar to Figure 4.



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