LTC1876 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
LTC1876
Linear Technology
'LTC1876' PDF : 36 Pages View PDF
LTC1876
TYPICAL APPLICATION
High Efficiency Triple 5V/ 3.3V/12V Power Supply
VOUT3
12V
200mA
0.1µF
20k
1%
0.01µF
220pF
6.8k
220pF
6.8k
20k
1%
1
RUN/SS1
36
PGOOD
63.4k
1% 1000pF
2 SENSE1+
3 SENSE1–
35
TG1
34
SW1
0.01µF
4
VOSENSE1
5
FREQSET
6
STBYMD
33
BOOST1
32
VIN
31
BG1
470pF
INTVCC
7
FCB
8
ITH1
30
EXTVCC
LTC1876
29
INTVCC
9
SGND
28
PGND
470pF
105k
1%
10
3.3V
3.3VOUT
11
ITH2
12
VOSENSE2
1000pF
13 SENSE2–
14 SENSE2+
27
BG2
26
BOOST2
25
SW2
24
TG2
23
RUN/SS2
100k
VPULL-UP
(<7V)
0.1µF
M1
VIN
5.2V TO 28V
4.7µF
10V
D3
1µF
D4 +
10Ω
0.1µF
0.1µF
M3
0.1µF
10.2k
86.6k
D5
15
AUXSGND
16
AUXVFB
17
AUXSW
18
AUXSW
22
AUXSD
SHUTDOWN
21
AUXVIN
20
AUXPGND
19
AUXPGND
+
10µF
20V
L3, 10µH
L1
4.6µH 3
4
1 RSENSE 2
0.008Ω
M2
D1
10µF
35V
47µF
6.3V
SP
VOUT1
3.3V
5A
33µF
35V
56µF
4V
SP
D2
M4
RSENSE
1 0.008Ω 2
L2 3
4
4.6µH
VOUT2
5V
5A
M1, M2, M3, M4: FDS6912A
L1, L2: SUMIDA CEP123-4R6
L3: TOKO A920CY-100M
D1, D2: MBRM140T3
D3, D4: BAT54A
D5: CMDSH-3
1876 TA03
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1876fa
36 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 q FAX: (408) 434-0507 q www.linear.com
LT/TP 1002 1K REV A • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2000
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