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PDF RT8165A Data sheet ( Hoja de datos )
| Número de pieza | RT8165A | |
| Descripción | Dual Single-Phase PWM Controller | |
| Fabricantes | Richtek | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de RT8165A (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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RT8165A
Dual Single-Phase PWM Controller for CPU Core/GFX
Power Supply
General Description
The RT8165A is a dual single-phase synchronous Buck
PWM controller with integrated gate drivers, compliant
with Intel VR12/IMVP7 specification. A serial VID (SVID)
interface is built-in in the RT8165A to communicate with
Intel VR12/IMVP7 compliant CPU. The integrated
differential remote output voltage sensing function and
built-in high accuracy DAC achieve accurate output voltage
regulation.
The RT8165A supports VR12/ IMVP7 compatible power
management states and VID on-the-fly function. The
RT8165A operates in two power management states
including DEM in PS2 and Forced-CCM in PS1/PS0.
Richtek's proprietary G-NAVPTM (Green Native AVP) makes
AVP (Active Voltage Positioning) design easier and more
robust. By utilizing the G-NAVPTM topology, DEM and CCM
efficiency can be improved.
The RT8165A integrates high accuracy ADC for platform
setting functions, such as no-load offset or over current
level. Individual VR ready output signals are provided for
both CORE VR and GFX VR. The IC also features complete
fault protection functions, including over voltage, under
voltage, negative voltage, over current and under voltage
lockout. The RT8165A is available in a WQFN-48L 6x6
small foot print package.
Marking Information
RT8165AGQW
RT8165A
GQW
YMDNN
RT8165AGQW : Product Number
YMDNN : Date Code
RT8165AZQW
RT8165A
ZQW
YMDNN
RT8165AZQW : Product Number
YMDNN : Date Code
Features
z G-NAVPTM (Green Native Active Voltage Positioning)
Topology
z Dual Output Controller with Two Built-in Gate
Drivers
z Serial VID Interface
z 0.5% DAC Accuracy
z Differential Remote Output Voltage Sensing
z Built-in ADC for Platform Programming
z Diode Emulation Mode (DEM) at Light Load
Condition
z Droop Enable/Disable
z Fast Transient Response
z VR12/IMVP7 Compatible Power Management
States
z VR Ready Indicator
z Thermal Throttling Indicator
z Current Monitor Output
z Switching Frequency up to 1MHz per Phase
z Protection : OVP, UVP, NVP, OCP, UVLO
z Small 48-Lead WQFN Package
z RoHS Compliant and Halogen Free
Applications
z VR12 / IMVP7 Intel CPU Core Supply
z AVP Step-down Converter
z Notebook/ Netbook/ Desktop Computer CPU Core
Supply
Ordering Information
RT8165A
Package Type
QW : WQFN-48L 6x6 (W-Type)
Lead Plating System
G : Green (Halogen Free and Pb Free)
Z : ECO (Ecological Element, Halogen
Free)
Note :
Richtek Green products are :
` RoHS compliant and compatible with the current
requirements of IPC/JEDEC J-STD-020.
` Suitable for use in SnPb or Pb-free soldering processes.
DS8165A-00 March 2011
www.richtek.com
1
1 page  
RT8165A
Typical Application Circuit
5V
VCCP
VCLK
VDIO
ALERT
VRA_READY
VR_READY
VRHOT
VCC
DRPENA
DRPEN
OCSETA
OCSET
SETINIA
SETINI
RT8165A
R1 VCC 12 VCC
TONSET 48
C1
BOOT 47
UGATE 46
R6 R7 R8 R9 R10 R11
29 VCLK
28 VDIO
27 ALERT
25
24
23
VRA_READY
VR_READY
VRHOT
PHASE 45
LGATE 44
PVCC 43
ISEN1P 1
Optional
C25
ISEN1N 2
R17 R18 R19 R20 R21 R22
R28 R29 R30 R31 R32 R33
26 DRPENA
8 DRPEN
21 OCSETA
19 OCSET
13
14
SETINIA
SETINI
IMONFB 7
4
FB
3
COMP
RGND 5
IMON 6
R2 R3
C2
VIN
5V to 25V
R4 C3
Q1
R5
C4
R12 Q2
5V
C8
R13
C7
R14
R16
C5
R15
L1
RNTC1
VCORE
C6
C9
Optional
R24
R23 C10
Optional
C11 C12
R25 R26 R27
IMON
R35
R34
CORE VCC_ SENSE
VCORE
CORE VSS_SENSE
VCC
C13 R36
TMPMAX
ICCMAX
ICCMAXA
OFSA
OFS
GFXPS2
VCC
R37 R38 R39 R40 R41 R42
R47 R48 R49 R50 R51 R52
15 TMPMAX
16
17
ICCMAX
ICCMAXA
10
9
11
OFSA
OFS
GFXPS2
TONSETA 37 R43
BOTTA 39
UGATEA 40
PHASEA 41
LGATEA 42
R45
R46
R53
R44
C14
C15
Q1
Q2
VIN
5V to 25V
C16
R54
C17
L2
RNTCA
VGFX
C19
R58 RNTCT1 R59 RNTCTA
R62 R63
20 TSENA
18 TSEN
22 IBIAS
R64
ISENAP 36
ISENAN 35
IMONFBA 30
FBA 33
R55
R57
C18
R56
C20
Optional
R60
C22 C23
R61
C21
Optional
EN 38 EN
34
COMPA
RGNDA 32
IMONA 31
GND
49 (Exposed Pad)
R65
C24
R66 R67
IMONA
R69
R70
R68
GFX VCC_SENSE
VGFX
GFX VSS_SENSE
Figure 1. Dual Output Application Circuit
DS8165A-00 March 2011
www.richtek.com
5
5 Page 
VID7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
VID6
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
VID5
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
VID4
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
VID3
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
VID2
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
VID1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
VID0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
H1
6
6
6
6
6
6
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
8
8
8
8
8
8
8
8
8
8
8
8
8
8
DS8165A-00 March 2011
RT8165A
H0 DAC Voltage
A 0.775
B 0.780
C 0.785
D 0.790
E 0.795
F 0.800
0 0.805
1 0.810
2 0.815
3 0.820
4 0.825
5 0.830
6 0.835
7 0.840
8 0.845
9 0.850
A 0.855
B 0.860
C 0.865
D 0.870
E 0.875
F 0.880
0 0.885
1 0.890
2 0.895
3 0.900
4 0.905
5 0.910
6 0.915
7 0.920
8 0.925
9 0.930
A 0.935
B 0.940
C 0.945
D 0.950
To be continued
www.richtek.com
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet RT8165A.PDF ] | |
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