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LTC1876 Datasheet(PDF) 34 Page - Linear Technology

Part # LTC1876
Description  High Efficiency, 2-Phase, Dual Synchronous Step-Down Switching Controller and Step-Up Regulator
PDF  36 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1876 Datasheet(HTML) 34 Page - Linear Technology

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



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