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PDF APW8855 Data sheet ( Hoja de datos )
| Número de pieza | APW8855 | |
| Descripción | High Frequency 7 Outputs Voltage Regulator and Power Management IC | |
| Fabricantes | ANPEC | |
| Logotipo |  |
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APW8855
High Current, High Frequency 7 Outputs Voltage Regulator and Power
Management IC for High Performance Tablet and Ultra Notebook Applica-
1.General Description
3.Features
tions
The APW8855 is a Power Management IC (PMIC) de-
signed to provide 7 Voltage regulators for AMD’s Stoney
Ridge APU with ability to communicate via an I2C interface.
The IC operates from a wide input voltage of 5.5V to 20V.
There are 5 Switching Buck regulators and 2 low power
LDOs that are all controlled and sequenced via the serial
interface. The Buck PWM regulators consists of 3 switch-
ing controller driving external power stage such as
APW8703 which is capable of supplying up to 8A supply,
2 single phase switching regulators supplying up to 3A
supply.
The IC is equipped with all the standard protection fea-
tures such as over current, over voltage and internal un-
der voltage lock out protection. The serial interface is an
I2C communication interface which allows supply se-
quencing as well as controlled supply ramp up and ramp
down of all supplies except for the always on 1.5V LDO
supplying to RTC load. The IC is offered in TQFN4x4-32A
package.
2.Applications
• High Performance Tablet PCs
• Ultra Notebook PCs
• Netbook PCs
• High Performance Digital Signage
• Medical Devices
• Smart phones
Voltage Rail
• Provide 3 Buck PWM Controllers with High
Accuracy over Temperature
-VR1 provides 5V, 4A continuous output current.
-VR2 provides 3.3V, 8A continuous output current.
-VR5 provides 0.95V, 8A continuous output current.
• Provide 2 Buck PWM Converters with High
Accuracy over Temperature
-VR3 provides 1.8V, 2.5A continuous output current.
-VR3 provides 1.5V, 2.5A continuous output current.
• Provide 2 LDO Outputs with High Accuracy over
Temperature
-VR6 provides a low quiescent LDO output for RTC.
-VR7 provides a 0.65V to1.35V, 0.2A LDO output.
• Built in Current limit, Over Voltage protection and
Over temperature protection
Serial Interface
• I2C communication Interface for SoC Access
• Support Bit Rate 0.4MBit/s, 1MBit/s and 3.4MBit/s
• Power Sequence Control by CTL
• Built-in Thermal Diode and I2C Reading Function
for Temperature Sensing
• POK Signal for VR power state.
• 4x4 TQFN-32A Package.
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and
advise customers to obtain the latest version of relevant information to verify before placing orders.
Copyright © ANPEC Electronics Corp.
Rev. A.1 - Dec., 2015
1
www.anpec.com.tw
1 page  
APW8855
9.Block Diagram
VSYS
5V_ALW
_LDO
3V3_ALW
_LDO
LDO_RTC
_IN
LDO_RTC
_OUT
VDDP_AL
W_GPIO
S5_MUX
VDD_FCH_
S5_REFIN
5VLDO
VSYS
5VLDO
VR6 1.5V
LDO
VDD_FCH_
S5_OUT
VTHBYP_5V
VTHBYP_3V3
Control
Logic
VR1 PWM
Controller
VR2 PWM
Controller
VR5 PWM
Controller
VR3 PWM
Converter
VDD_FCH_
S5_IN
I2CCLK
I2CDATA
LDO
Regulator
0.78V
Controller
ADC
Thermal
Diode
VR4 PWM
Converter
CTL POK
Copyright © ANPEC Electronics Corp.
Rev. A.1 - Dec., 2015
GND
5
5V_ALW
_BYP
5V_ALW_
PWM
5V_ALW
_FBP
3V3_ALW
_BYP
3V3_ALW
_PWM
3V3_ALW
_FBP
VDDP_ALW
_PWM
VDDP_ALW
_FBP
VDDP_ALW
_FBN
1V8_ALW
_IN
1V8_ALW
_LX
1V8_ALW
_FBP
1V8_ALW
_GND
1V5_ALW
_IN
1V5_ALW
_LX
1V5_ALW
_FBP
1V5_ALW
_GND
www.anpec.com.tw
5 Page 
APW8855
13.Electrical Characteristics
13.1 Regulator Table
Table 1. PWM Controllers VR1, VR2,VR5
S ymbol Parame ter
V IN
VOUT
IOUT
IPEAK
C IN
COUT
ESR
L
DCR
Inpu t Voltage
Defau lt Outpu t Voltage
O utput Voltag e Ran ge
Con tin uous Output Current
P eak Output Cu rrent
Inpu t Capacitor
O utput Cap acito r
O utput Cap acito r E SR
O utput Indu ctor
O utput Indu ctor DCR
VR1(5VALW)
VVSYS
5 .0 6
4.5~5 .5
4
8
>2 x 10
>1 x 220
6
2 .2
< 10
VR2(3VALW)
VVSYS
3.3
2.6~4
8
-
>2 x 1 0
>1 x 220
6
1.0
<10
V R5 (VDDPALW)
VVSYS
0 .9 5
0.5~1 .5
8
-
>2x 10
>2 x 1 0+1 x2 20
6
0.47
<1 0
Unit
V
V
A
A
µF
µF
mΩ
µH
mΩ
Table 2. PWM Converters VR3, VR4
Symbol Pa ram ete r
V IN
V OUT
I OU T
IPEAK
CIN
C OU T
ES R
L
DCR
Input Volta ge
Default Output Vo ltag e
Ou tpu t Voltage Rang e
Continu ous Output Cur rent
Pe ak Outp ut Curre nt
Input Capacitor
Ou tpu t Capacitor
Ou tpu t Capacitor ES R
Ou tpu t Inductor
Ou tpu t Inductor DCR
V R3(1V8 ALW)
V5V_ALW
1.8
1.45 ~2.25
2.5
3
>2x 2 2
>2 x 47
6
0 .4 7
<15
VR 4(1V 5ALW)
V5 V_ ALW
1.5
0.8 ~2
2.5
3
>2 x 22
>2 x 47
6
0.47
< 15
Unit
V
V
A
A
µF
µF
mΩ
µH
mΩ
Table 3. LDO Regulators VR6, VR7
S ymbol Parame ter
V IN
VOUT
IOUT
C IN
COUT
Inpu t Voltage
Defau lt Outpu t Voltage
O utput Voltag e Ran ge
Con tin uous Output Current
Inpu t Capacitor
O utput Cap acito r
VR6(LDO_ RTC)
V LDO_RTC_IN (3.3V Ba ttery)
1.5
-
4.5µ
1
2 .2
V R7(VDD_FCH_S5)
VVDDP_ALW or
VVDD_FCH_S5_REFIN( VDDNB )
0.78
0 .5~1.5
0.2(LDO)/0 .9 (Switch )
10
22
Unit
V
V
A
µF
µF
Copyright © ANPEC Electronics Corp.
Rev. A.1 - Dec., 2015
11
www.anpec.com.tw
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet APW8855.PDF ] | |
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