LTC1876 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
LTC1876
Linear Technology
'LTC1876' PDF : 36 Pages View PDF
LTC1876
TYPICAL APPLICATIO S
3.3VIN Dual-Phase High Efficiency Power Supply
100pF
8.25k
1%
17.4k
1%
0.01µF
0.01µF
100pF
47k
100pF
6800pF
47k
6800pF
8.06k
10k
1%
1%
10.2k
1%
30.9k
1%
1µF D3
6.3+V
10µF
10V
1
RUN/SS1
2 SENSE1+
1000pF
3 SENSE1–
4
VOSENSE1
5
FREQSET
6
STBYMD
36
PGOOD
100k
35
TG1
VPULL-UP
(<7V)
34
SW1
33
BOOST1
0.47µF
32
VIN
31
BG1
M1
×2
VIN
3.3V
7
FCB
8
ITH1
30
EXTVCC
LTC1876
29
INTVCC
9
SGND
28
PGND
2.2µF
6.3V
D4
+
10Ω
1µF
6.3V
10µF
6.3V
10
3.3V
3.3VOUT
27
BG2
M3
11
ITH2
26
BOOST2
×2
12
VOSENSE2
25
SW2
0.47µF
13 SENSE2–
1000pF
14 SENSE2+
24
TG2
23
RUN/SS2
0.1µF
15
AUXSGND
22
AUXSD
SHUTDOWN
16
AUXVFB
21
AUXVIN
17
AUXSW
20
AUXPGND
1µF
6.3V
18
AUXSW
19
AUXPGND
L3, 47µH
D1, D2: MBRS340T3
D3: CMDSH-3
D4: BAT54A
L1, L2: SUMIDA CEP134-OR9
L3: TOKO FSLB2520-470K
M1, M2, M3, M4: FDS7764A
L1
0.9µH 3
4
1 RSENSE 2
0.003Ω
M2
×2
D1
C4
1µF
6.3V
1µF
+
6.3V
COUT1
220µF, 4V, ×3
+
CIN
330µF
6V, ×3
M4
×2
+
COUT2
330µF, 2.5V, ×3
C26
D2
1µF
6.3V
VOUT1
2.5V
15A
1
2
L2 3 RSENSE 4
0.9µH
0.003Ω
VOUT2
1.8V
15A
1876 TA04
1876fa
34
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