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LTC1778 数据表(PDF) 21 Page - Linear Technology

部件名 LTC1778
功能描述  Wide Operating Range, No RSENSE Step-Down Controller
PDF  24 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTC1778 数据表(HTML) 21 Page - Linear Technology

Back Button LTC1778 Datasheet HTML 16Page - Linear Technology LTC1778 Datasheet HTML 17Page - Linear Technology LTC1778 Datasheet HTML 18Page - Linear Technology LTC1778 Datasheet HTML 19Page - Linear Technology LTC1778 Datasheet HTML 20Page - Linear Technology LTC1778 Datasheet HTML 21Page - Linear Technology LTC1778 Datasheet HTML 22Page - Linear Technology LTC1778 Datasheet HTML 23Page - Linear Technology LTC1778 Datasheet HTML 24Page - Linear Technology  
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background image
21
LTC1778/LTC1778-1
1778fb
TYPICAL APPLICATIO S
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
RUN/SS
VON
VRNG
FCB
ITH
SGND
ION
VFB
BOOST
TG
SW
PGND
BG
INTVCC
VIN
EXTVCC
LTC1778-1
+
M2
IRF7811A
M3
Si4888
D1
B340A
D2
IR 12CWQ03FN
M1
IRF7811A
L1 4.8µH
COUT
100µF
20V
×6
CIN
22µF
50V
×2
VIN
6V TO 18V
VOUT
12V
CSS
0.1µF
CC1 1nF
C1
100pF
CC2
220pF
CVCC
4.7µF
CF
0.1µF
CIN: MARCON THER70EIH226ZT
COUT: AVX TPSV107M020R0085
L1: SCHOTT 36835-1
PGND
CB
0.22µF
RC
47k
R1
10k 1%
RON2
1.5M
1%
RON1
1.5M
1%
R2
140k
1%
RF
1Ω
DB
CMDSH-3
1778 TA04
VIN
18V
12V
6V
IOUT
6A
5A
3.3A
Single Inductor, Positive Output Buck/Boost
12V/5A at 300kHz
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
RUN/SS
VON
VRNG
FCB
ITH
SGND
ION
VFB
BOOST
TG
SW
PGND
BG
INTVCC
VIN
EXTVCC
LTC1778-1
+
M2
M1
L1 10µH
COUT
220µF
16V
CIN
22µF
50V
VIN
14V TO 28V
VOUT
12V
5A
CSS
0.1µF
CC1
2.2nF
CC2
100pF
C2
2200pF
CVCC
4.7µF
CF
0.1µF
CB
0.22µF
RC
20k
R1
10k
RON
1.6M
R2
140k
RF
1Ω
DB
CMDSH-3
D1
1778 TA05
UNITED CHEMICON THCR70E1H226ZT (847) 696-2000
SANYO 16SV220M
(619) 661-6835
SUMIDA CDRH127-100
(847) 956-0667
FAIRCHILD FDS6680A
(408) 822-2126
DIODES, INC. B340A
(805) 446-4800
CIN:
COUT:
L1:
M1, M2:
D1:



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