Acer Q1VZC Schematics Document page 38

A
1
+0.75VSP
2
+VTT_REFP
<29,33,36,39,40> SUSP#
<29,33> SYSON
3
<33,39,40> SUSP
STATE S3 S5 1.5VP
S0 Hi Hi On
S3 Lo Hi On
S4/S5 Lo Lo Off
(Discharge)
4
Note: S3 - sleep ; S5 - power off
A
B
+1.5VP
PJ15
JUMP_43X79
靠 靠
O utput Cap PAD
PU8
21
PAD
1
VTTGND
2
VTTSNS
3
GND
RT8207MZQW _W QFN20_3X3
4
VTTREF
5
+1.5VP VDDQ
PC98
0.033U_0402_16V7K
PR173
680K_0402_1%
1 2
PR171
0_0402_5%
1 2
PC325 @ PC96 10.5K_0402_1%
0.1U_0402_16V7K 0.1U_0402_16V7K FB_1.5V 2
PC100
100P_0402_50V8J
1
D
PQ31 PR169
2 10K_0402_1%
G FB=0.75V
2N7002KW _SOT323-3
To GND = 1.5V
S
To VDD = 1.35V
<Vo=1.5V>
VTT_REFP 0.75VSP
V=0.75*(1+10K/10.5K)=1.52V
Fsw=286K to 200KHz
On On
Off
Cout ESR=17m ohm Rdson(max)=16.5 mohm
On
(Hi-Z)
Ipeak=12 A, Imax=8.4A, Iocp=14.4A
Delta I=((Vin-Vo)*(Vo/Vin))/(L*Fsw)=2.195A
Off Off
=>1/2Delta I=1.099A
(Discharge) (Discharge)
Iocpmax=((21.5K*11uA)/0.0135)+0.5 delta I= A
Iocpmin=((21.5K*9uA)/(0.0165))+0.5 delta I=15.6A
B
4
PR96 PC76
0_0603_5% 0.1U_0603_25V7K
1 2 BST_1.5V-1 1 2
15 4
LG_1.5V
LGATE
14
PGND
PR170
21.5K_0402_1%
13 1.5V_CS 2 1
CS
12
VDDP
11 VDD_1.5V 2 1
VDD +5VALW
PR174
+3VALW
5.1_0603_5%
PC78
1U_0603_10V6K
@
PGOOD_1.5V
1.5V_TON PR172
887K_0402_1%
2 1 1.5V_B+
PR95
1
2
VFB=0.75V
Rdson(typ)=13.5 mohm.
Security Classification Security Classification Security Classification Compal Secret Data Compal Secret Data Compal Secret Data
2011/11/22 2011/11/22 2011/11/22
Issued Date Issued Date Issued Date
THIS SHEET OF ENGINEERING DRAWING IS THE PROPRIETARY PROPERTY OF COMPAL ELECTRONICS, INC. AND CONTAINS CONFIDENTIAL THIS SHEET OF ENGINEERING DRAWING IS THE PROPRIETARY PROPERTY OF COMPAL ELECTRONICS, INC. AND CONTAINS CONFIDENTIAL THIS SHEET OF ENGINEERING DRAWING IS THE PROPRIETARY PROPERTY OF COMPAL ELECTRONICS, INC. AND CONTAINS CONFIDENTIAL
AND TRADE SECRET INFORMATION. THIS SHEET MAY NOT BE TRANSFERED FROM THE CUSTODY OF THE COMPETENT DIVISION OF R&D AND TRADE SECRET INFORMATION. THIS SHEET MAY NOT BE TRANSFERED FROM THE CUSTODY OF THE COMPETENT DIVISION OF R&D 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 DEPARTMENT EXCEPT AS AUTHORIZED BY COMPAL ELECTRONICS, INC. NEITHER THIS SHEET NOR THE INFORMATION IT CONTAINS DEPARTMENT EXCEPT AS AUTHORIZED BY COMPAL ELECTRONICS, INC. NEITHER THIS SHEET NOR THE INFORMATION IT CONTAINS
MAY BE USED BY OR DISCLOSED TO ANY THIRD PARTY WITHOUT PRIOR WRITTEN CONSENT OF COMPAL ELECTRONICS, INC. MAY BE USED BY OR DISCLOSED TO ANY THIRD PARTY WITHOUT PRIOR WRITTEN CONSENT OF COMPAL ELECTRONICS, INC. MAY BE USED BY OR DISCLOSED TO ANY THIRD PARTY WITHOUT PRIOR WRITTEN CONSENT OF COMPAL ELECTRONICS, INC.
C
PJ18
1.5V_B+ 1
1 2
JUMP_43X79
PQ30
SIS412DN-T1-GE3_POW ERPAK8-5
PL16
1 2
1.5UH +-20% PCMC063T- 9A
PR175
4.7_1206_5%
PC75
680P_0402_50V7K
PQ29
SI7716ADN-T1-GE3_POW ERPAK8-5
Rds=13.5m (Typ)
16.5m (Max)
need change OCP setting
2012/11/22 2012/11/22 2012/11/22
Title Title Title
Deciphered Date Deciphered Date Deciphered Date
Size Size Size
Custom Custom Custom
Date: Date: Date:
C
D
B+
2
1
@
+1.5VP
1
+
2
2
3
4
Compal Electronics, Inc.
PWR-+1.5VP PWR-+1.5VP PWR-+1.5VP
Document Number Document Number Document Number Rev Rev Rev
Q1VZC M/B LA-8941P Schematic Q1VZC M/B LA-8941P Schematic Q1VZC M/B LA-8941P Schematic 1.0 1.0 1.0
Friday, April 20, 2012 Friday, April 20, 2012 Friday, April 20, 2012 Sheet Sheet Sheet 38 38 38 of of of 45 45 45
D