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RT8167B Datasheet(PDF) 16 Page - Richtek Technology Corporation

Part # RT8167B
Description  Dual Single-Phase PWM Controller for CPU and GPU Core Power Supply
PDF  38 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT8167B Datasheet(HTML) 16 Page - Richtek Technology Corporation

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RT8167B
16
DS8167B-00
October 2011
www.richtek.com
To be continued
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Shutdown Current
(PVCC + VCC)
IVCC_SHDN
+ IPVCC_SHDN
VEN = 0V
--
--
5
μA
Shutdown Current
(TONSETx)
ITONSETx_SHDN
VEN = 0V
--
--
5
μA
TON Setting
TONSETx Voltage
VTONSETx
IRTON = 80μA, VFBx = 1V
0.95
1.075
1.2
0V
On-Time
tON
IRTON = 80μA, VFBx = 1V
315
350
385
ns
TONSETx Input
Current Range
IRTON
VFBx = 1.1V
25
--
280
μA
Minimum Off-Time
TOFF_MIN
--
350
--
ns
GFX VR Forced DEM
GFXPS2x Enable
Threshold
VGFXPS
4.3
--
--
V
GFXPS2x Disable
Threshold
VGFXPS
--
--
0.7
V
References and System Output Voltage
VIDSVID Setting = 1.000V~1.520V
OFSSVID Setting = 0V
−0.5
0
0.5
%VID
VIDSVID Setting = 0.800V~1.000V
OFSSVID Setting = 0V
−5
0
5
VIDSVID Setting = 0.500V~0.800V
OFSSVID Setting = 0V
−8
0
8
VIDSVID Setting = 0.250V~0.500V
OFSSVID Setting = 0V
−8
0
8
DAC Accuracy
(PS0/PS1)
VFBx
VIDSVID Setting = 1.100V
OFSSVID Setting = −0.640V~0.635V
−10
0
10
mV
VINI_CORE = 0V, VINI_GFX = 0V
0
0.3125
0.5125
VINI_CORE = 0.9V, VINI_GFX = 0.9V
0.7375
0.9375
1.1375
VINI_CORE = 1V, VINI_GFX = 1V
1.3625
1.5625
1.7625
SETINIx Voltage
VSETINIx
VINI_CORE = 1.1V, VINI_GFX = 1.1V
2.6125
--
5
V
IBIAS Pin Voltage
VIBIAS
RIBIAS = 53.6kΩ
2.09
2.14
2.19
V
SetVID Slow
2.5
3.125
3.75
Dynamic VID Slew
Rate
SRDVID
SetVID Fast
10
12.5
15
mV/
μs
Error Amplifier
DC Gain
ADC
RL = 47kΩ
(Note5)
70
80
--
dB
Gain-Bandwidth
Product
GBW
CLOAD = 5pF
(Note5)
--
10
--
MHz
Slew Rate
SRCOMP
CLOAD = 10pF (Gain = −4,
RLOAD_COMP = 47kΩ, VCOMPx =
0.5V to 3V)
--
5
--
V/
μs
Output Voltage
Range
VCOMP
RL = 47kΩ
0.5
--
3.6
V
MAX Source/Sink
Current
ICOMP
VCOMP = 2V
--
250
--
μA
Impedance of FBx
RFBx
1
--
--
M
Ω



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