EUROCOM M22ES Service Manual page 108

Schematic Diagrams
System Power 2 SCH (+2.5V, +1.25V)
+2.5V
PJ4
1
6mm
Sheet 27 of 31
System Power 2
SCH (+2.5V,
+1.25V)
B - 28 System Power 2 SCH (+2.5V, +1.25V) (71-M2200-D06)
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VIN
PC12
+
10U/25V_O
PQ7A
FDS6982S
4
2.5V
PL2
5A PC51
CDRH-1205-100
2 PR9 12m(2512)
PC10 PC16
+ + PQ7B
FDS6982S 2
220U 220U
PR27 43.2K_1%
INTVCC PR50 10K
PC60 30P PR40 0(R)
PR25
20K_1% 3.3VREF PR54 0 VTT_PG
PJ9
1 2
SYS3V
2mm
E C PR97 10K SUSB-
SUSB- [27,28]
PQ31
DTA114EUA
DD_ONH
[25,27] DD_ONH
PR96
PQ32 100K AUXOK
[6,12,20,27] AUXOK
G 2N7002
[27] PSON
PD11
A C
[24,25,27] VIN1
1SS355
PR16
10
INTVCC INTVCC
PC50 0.1UF(0805)
PC49 10U
PD12 V2
RB751V
16 27
TG2 TG1
0.1UF PR17 0 18 25 PR24 0
BOOST2 BOOST1
17 26
SW2 SW1
19 23
BG2 BG1
PU3
9 20
SGND PGND
LTC3707
14 2
SENSE2+ SENSE1+
PC68 PC63
1000P 13 3 1000P
SENSE2- SENSE1-
12 4
VOSENSE2 VOSENSE1
5 7
FREQSET FCB
6 10 3.3VREF
STBYMD 3.3Vout
28 22 PR23 0
PGOOD EXTVCC
11 8
ITH2 ITH1
PR49
2.7K(R)
PC67 PC64
1000P 1000P
PC66 PC65
30P V2 V2
30P
PR55 PR53
33K PR77 PR76 33K
1M 1M
SYS3V SYS3V
PC86 PC85
0.1UF 0.1UF
PR78 PR75
100K 100K
PQ24
G 2N7002 G
PR99 0(R) PQ23
2N7002 PQ22
PR98 0 G PJ12 2N7002 G SUSB-
2mm
PQ25
2N7002
VIN
PC19
PD10 + PC44
RB751V PQ10A 10U/25V_O 0.1UF(0805)
FDS6982S
4
1.25V
PC56 PR11 3A
0.1UF 20m(1206)
PL5 4.7UH
PC21
+
2
PQ10B 220U
FDS6982S
PR32 11K_1%
PR51 R(R) INTVCC
PR26 PC61 30P
20K_1%
+5V
PR52
0
PR74 0
+1.25VS
PJ5
1 2
PC24 4mm
+
220U