Acer Emachines E627 COMPAL LA-5481P HCWG0_H0 Rev1.0

A
B
C
D
ISL6237_B+
ISL6237_B+
1 1
+3VALWP
B+
@PC203
680P_0402_50V7K
PC25
330U_6.3V_M
<BOM Structure>
PJ17
JUMP_43X118
2
2 1
1
PC15
4.7U_1206_25V6K
DH3
PR20
2
BST3A
2.2_0603_5% 1
LX3
DL3
2 2
+3.3VALWP Ipeak=4.26A ; Then set Imax=4.26A
Choke DCRmax=26.5m ohm, DCRtyp=23m ohm
Rds(on)=18m ohm(max) ; Rds(on)=15m ohm(typical)
Vlimit=(5E-06 * 316K)/10=158mV
Ilimit=158mV/(18m*1.2) ~ 158mV/15m
=7.31A~10.53A
Iocp=Ilimit+Delta I/2
VS
=7.76A~10.98A
Delta I=0.908A (Freq=300KHz)
1
+
2
1
2
1 2
1 2
PR22
0_0402_5%
@PR25
10K_0402_1%
1
2
PL5
10UH_MSCDRI-104A-100M-E_4.6A_20%
1 2
FB3
3 3
check this part
PC16
4.7U_1206_25V6K
1SS355_SOD323-2
PC17
2200P_0402_50V7K
1
2
PC28
680P_0402_50V7K
PD7
1
2
PR19
4.7_1206_5%
2 1
1
2
1
2
PD6
GLZ5.1B_LL34-2
1 2
<8,41> MAINPWON
2
3 6
3 6
8
7
1
2
5
5
PR29
100K_0402_1%
1 2
8
7
1
2
PQ4
AO4712_SO8
4
PR30
200K_0402_5%
1 2
PR37
0_0402_5%
2 1
1 3
PQ2
AO4466_SO8
4
1 2
VL
1 2
PR35
806K_0603_1%
1 2
PQ6
TP0610K-T1-E3_SOT23-3
PR18
0_0805_5%
1 2
PC26
0.1U_0603_25V7K
PC31
PC32
0.22U_0603_25V7K
1
2
@PR33
0_0402_5%
PC21
0.1U_0603_25V7K
VL
2VREF_ISL6237
1 2
@PR38
47K_0402_5%
1 2
PC34
0.047U_0603_16V7K
1 2
PR34
0_0402_5%
1 2
1
2
2VREF_ISL6237
33
26
24
25
23
30
32
@PC35
0.047U_0402_16V7K
DH5
PR21
2.2_0603_5%
BST5A 2 1
4 4
1
0.22U_0603_10V7K
8
20
4
14
27
1 2
TP
UGATE2
BOOT2
PHASE2
LGATE2
OUT2
REFIN2
REF
LDOREFIN
NC
EN_LDO
EN1
EN2
VIN 6
NC
5
PC33
1U_0603_10V6K
1 2
PC22
1U_0603_10V6K
1 2
TON
2
1
2
2VREF_ISL6237
VCC 3
LDO 7
GND
21
VL
PC23
4.7U_0805_6.3V6K
POK2
POK1
1
2
PVCC 19
UGATE1
BOOT1
PHASE1
LGATE1
PR36
0_0402_5%
PGND 22
OUT1
FB1
BYP 9
SKIP 29
ILIM1
ILIM2
15
17
16
18
10
11
28
13
12
31
PC27
0.1U_0603_25V7K
LX5
DL5
FB5
ILM1
ILIM2
PC24
1U_0603_10V6K
1 2
@PR27
2
PU3
ISL6237IRZ-T_QFN32_5X5
1 2
0_0402_5%
1
PR28
0_0402_5%
1 2
PQ5
AO4712_SO8
PR31
365K_0402_1%
2 1
2
PQ3
AO4466_SO8
4
1
PR32
316K_0402_1%
4
5
5
3 6
3 6
VL
7
8
2
1
7
8
2
1
PR23
4.7_1206_5%
PC29
680P_0402_50V7K
PC18
4.7U_1206_25V6K
1
2
1
2
SPOK <41,44>
+5VALWP
+5VALWP Ipeak=6.87A ; Imax=4.81A
Choke DCRmax=26.5m ohm, DCRtyp=23m ohm
Rds(on)=18m ohm(max) ; Rds(on)=15m ohm(typical)
Vlimit=(5E-06 * 365K)/10=182.5mV
Ilimit=182.5mV/(18m*1.2) ~ 182.5mV/15m
=8.44A ~ 12.16A
Iocp=Ilimit+Delta I/2
=8.90A ~ 12.62A
Delta I=0.921A (Freq=400KHz)
1
2
PC19
4.7U_1206_25V6K
1
2
PC20
2200P_0402_50V7K
1
2
PL4
10UH_MSCDRI-104A-100M-E_4.6A_20%
2
1
PR24
63.4K_0402_1%
1 2
PR26
10K_0402_1%
1 2
1
+ PC30
330U_6.3V_M
2
A
B
Security Classification
Compal Secret Data
Issued Date
2008/06/11 Deciphered Date
2010/03/12
Title
THIS SHEET OF ENGINEERING DRAWING IS THE PROPRIETARY PROPERTY OF COMPAL ELECTRONICS, INC. AND CONTAINS CONFIDENTIAL
Size Document Number Rev
AND TRADE SECRET INFORMATION. THIS SHEET MAY NOT BE TRANSFERED FROM THE CUSTODY OF THE COMPETENT DIVISION OF R&D
DEPARTMENT EXCEPT AS AUTHORIZED BY COMPAL ELECTRONICS, INC. NEITHER THIS SHEET NOR THE INFORMATION IT CONTAINS
Custom
C
401743
MAY BE USED BY OR DISCLOSED TO ANY THIRD PARTY WITHOUT PRIOR WRITTEN CONSENT OF COMPAL ELECTRONICS, INC.
Date: Wednesday, June 24, 2009
Sheet 39 of
47
C
D
Compal Electronics, Inc.
SCHEMATIC, MB A5481