LTC3778 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC3778' PDF : 24 Pages View PDF
LTC3778
TYPICAL APPLICATIO S
Intel Compatible Tualatin Mobile CPU Power Supply with AVP
3.3V
1 VRON 2
3
3
1
Q2
1
Q1
2N7002
2N7002
R2
2
R1
100k
100k
2
R3
OPT
R4
R5
R6
2k
100Ω
1k
PWRGOOD
3
Q3 1
MMMT3906-7
3
2
Q6 1
MMBT3904-7
2
R14
10k
C7
1µF
6.3V
0603
C1, 0.01µF
C2, 0.01µF
R8
1k
VOUT
R10
3.2k
R13
10k
C8, 0.1µF
C9, 220pF R15
20k
C11, 220pF
R17
24.9k, 1%
R18
221k, 1%
3.3V
R29
12.1k
DPSLP#
1
2
R37
100k
VIN
R33
100k
R41
0
R19
330k
C18, 1000pF
3
Q14
2N7002
2
1
R38
1M
VIN
INTVCC
SGND
PGND
12
R16
1
LTC3778E
RUN/SS BOOST
20
0
2 VON
TG 19
D1
CMDSH-3
C10
0.22µF
3
PGOOD
18
SW
4
VRNG
5
ITH
6
FCB
SENSE+ 17
SENSE– 16
15
PGND
7
SGND
14
BG
8
ION
9
VFB
13
DRVCC
R23
12
1Ω
INTVCC
10
EXTVCC
11
VIN
C41, 1µF C42, 1µF
R7
1Ω
VIN
5V
+
QT
IRF7811A
×2
VIN
7.5V
CIN TO 24V
10µF
35V
×4
L1
0.68µH
SUMIDA
CEP125-4712F011
VCORE
1.35V/1.15V/0.85V
1
23A
QB
IRF7811A
D2
UPS840
×3
COUT +
270µF
2 3 2V, SP
×4
R21
0.003Ω
C21
1µF
C19
4.7µF
16V
R9
221k
1%
3
1
Q13
2N7002
2 3.3V
R30
11.8k
1%
R28
100k
DPRSLPVR GMUXSEL
R34
33.2k
1%
3
1
Q15
2N7002
2
1
3
Q12
2N7002
R39
1M
2
R31
10k VCORE
1%
R11
Q17 9.76k
2N7002 1%
23
1
R49*
178k
1%
3
1
Q19*
2N7002
2
3
1
Q20*
2N7002
2
*OPTIONAL
3778 F12
3778f
22
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