GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GNDGND GND
GND
GNDGND GND
GND
GND
GND
GND
GND
GND
...
.............
DD-MM
DD-MM
DD-MM
DD-MM
...
...
...
...
...
...
...
...
...
5-5-2008_15:52
...........
...
...
...
...
...
...
DD-MM-YY
......
Tel +86-755-3331xxxx Fax +86-755-3331xxxx
Nanshan District, Shenzhen, Guangdong
B Building, TCL Tower, Nanhai Road
TCL Thomson Electronics Ltd.
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DESCRIPTION Last modifNAME
A
3 2 1
F
E
D
C
B
8 7 6 5
5
4 3 2 1
THIS DRAWING CANNOT BE COMMUNICATED TO UNAUTHORIZED PERSONS COPIED UNLES S PERMITTED IN WRITING
F
E
D
C
B
A
4678
FORMAT DIN A2
Index-Lab
DESIGNATION
SBU :
TCLNO:
DRAWN
GND
SW
VBST
VIN
PG
VREG5
VFB
EN
SW4
AGND
VOUT
VCC
NC2
PG
NC1
BST
FB
MODE
EN
SW2
PGND
SW3
VIN
SW1
LX
GND
EN
VIN
FB
GND/ADJ
OUT
VIN
4
GND/ADJ
OUT
VIN
4
T
T
T
T
T
T
T
T
T
T
T
T
T
FB
GND
BS
EN
IN
LX
T
T
T
T
(Vin=5V-40V)
max:1.2A
0.6V
FSW=800KHz
Fixed Fsw=500KHZ
Vref=0.6V
(Vin=5V-22V)
max5A
Fixed OCP=6.7A
(5)
Vref=0.6V
@max1A
(Vin=2.5V-6V)
(Vin=4.5V-18V)
@max5A
Fsw=650KHz
(5)
Must controlled by PWM
L=>POWER_ON
H=>POWER_OFF
(5)
(5)
(5)
(5)
(5)
Without via on net KEY_IN
The distance between different net via>2mm
LDO 3V3 TO 1V8
LDO 5V TO 3V3
KEY Connector
*
12V TO 1V2
12V TO 5V
DDR 1V5
Vref=0.6V
MTK
MAIN POWER
(5)
Delete R114 when the I/O(KEY_IN) support 3.3V
SY8291,2015-04-23
12V TO 3V3SB
4.7K
R903
R905
150K
PDIM
BL_ON
POWER_ON
POWER_ON
DDR_1V5
C054
1000P
R052
36K
R051
30K
R050
300K
C057
0.1U
C056
22U
C055
22U
D050
SR34
L050
3.3UH
0.1U
C053
3
2
1
4
5
6
U002
AN_SY8291
C052
0.1U
2.2U
C051C050
2.2U
3V3SB
1
2
3
4
5
P900
1
2
3
4
P901
12V_AMP
L001
220R
12V
12V_M
L900
220R
C900
0.01U
IR_GND
IR_3V3
CORE_1V2
3V3
1V8
+5V
P_GND
12V
ADIM
KEYKEY_GND
LED_OUT
IR
L902
600R
C048
10U
C047
0.1U
10U
C046
R024
33K
R023
33K
R022
100K
R021
100K
C045
0.1U
C044
22U
C043
22U
C042
22P
C041
0.1U
C040
10U
L006
2.2UH
C039
10U
C038
0.1U
10U
C037
C036
0.1U
C035
22U
C034
22U
C033
22U
C032
22UC031
220P
NC/
C030
220P
C029
0.22U
C028
1U
C027
0.1U
C026
0.1U
C025
0.1U
C024
10U
C023
10U
L005
1UH
R020
510R
R019
1M
R018
10R
NC/
R017
4R7
R016
0R
NC/
R015
100K
R014
91K
R013
8K2
R012
100K
NC/
R011
47K
R010
3K3
/NC
1
2
3
4
AS1117-1.8
U006
1
2
3
4
AS1117-3.3
U005
3
2
1
4
5
U004
RT8096A
16
14
7
11
5
4
3
10
12
6
13
9
2
15
1
8
U003
MP8765
C905
0.1U
F900
2 1
D900
PESD5V0S1BLNC/
R904
22K
KEY
C904
0.1U
C903
470P
C902
220P
R902
1K
R901
470R
R900
10K
0.1U
C015
10U
C014
10U
C013C012
10U10U
C011
C010
22P
NC/
R005
820R
R004
3K6
R003
33K
R002
6R8
NC/
L003
4.7UH
C009
220P
NC/
0.1UC008
5
6
7
8
4
3
2
1
U001 TPS56528
C007
2U2
C006
0.1U
0.1U
C005C004
10U
C003
10U
R001
1K
C002
0.01U
C001
470U
16V
L002
220R
R209
10K
R208
220R
R207
220R
R206
10K
R205
220R
R204
10K
R203
10K
R202
10K
B
E
C
BT3906
Q200
R201
10K
R200
10K
3V3SB
LED_OUT
POWER_ON
12V_M
CORE_1V2
12_24_DETECT
12V
GND
GND
POWER_ON
3V3SB
3V35V
1V8
KEY_IN
3V3SB
3V3
IR_IN
IR
3V3SB
GND
GND
GND
GND
A_DIMING
BL_ON_OUT
POWER_ON_OUT
3V3SB
DIM_OUT
12V_M
GND
5V
DDR_1V5
5V
GND
3V3SB
12V_M
BL_ON
PDIM
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