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LTC1148CS 数据表(PDF) 16 Page - Linear Technology

部件名 LTC1148CS
功能描述  High Efficiency Synchronous Step-Down Switching Regulators
PDF  20 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTC1148CS 数据表(HTML) 16 Page - Linear Technology

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16
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
VFB
SENSE+
LTC1148
1
µF
0.01
µF
RSENSE**
0.033
Ω
SHUTDOWN
*L
50
µH
IRF7201
D1
MBRS140T3
+
VIN
8V TO 14V
COUT
220
µF
10V
×2
OS-CON
VOUT
5V/3A
CC
3300pF
RC
220
Ω
CT
390pF
*COILTRONICS CTX50-2-MP
**KRL SL-1-C1-0R033J
LTC1148 • F12
10nF
IRF7204
CIN
330
µF
20V
100pF
R1
10k
1%
R2
30k
1%
()
VOUT = 1 +
R2
R1
1.25V
VALUES SHOWN FOR VOUT = 5V
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+
LTC1148HV-3.3
1
µF
1000pF
RSENSE**
0.1
Ω
SHUTDOWN
*L
50
µH
D1
MBRS140T3
1/2 Si4532
1/2 Si4532
+
CIN
100
µF
25V
VIN
4V TO 18V
COUT
220
µF
10V
OS-CON
VOUT
3.3V/1A
CC
3300pF
RC
1k
CT
300pF
*COILTRONICS CTX50-4 Kool M
µ CORE
**IRC LR2010-01-R100-G
LTC1148 • F11
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+
LTC1148HV-5
1
µF
1000pF
RSENSE**
0.1
Ω
SHUTDOWN
*L
100
µH
1/2 Si4532
D1
MBRS140T3
1/2 Si4532
+
CIN
100
µF
25V
VIN
5.2V TO 18V
COUT
220
µF
10V
AVX
VOUT
5V/1A
CC
3300pF
RC
1k
CT
390pF
*COILTRONICS CTX100-4 Kool M
µ CORE
**KRL SP-1/2-A1-0R100
LTC1148 • F10
Figure 10. 5V/1A High Efficiency Regulator
with Extended Input Voltage Range
Figure 11. High Efficiency 5V to 3.3V/1A Converter
with Extended Input Voltage Range
Figure 12. High Efficiency Adjustable 3A Regulator



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