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RT8152F Datasheet(PDF) 9 Page - Richtek Technology Corporation

Part # RT8152F
Description  Single-Phase PWM Controller for CPU / GPU Core Power Supply
PDF  24 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT8152F Datasheet(HTML) 9 Page - Richtek Technology Corporation

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RT8152C/D
9
DS8152C/D-04
April 2011
www.richtek.com
To be continued
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Supply Input
Supply Current
IVCC + IPVDD
RTON = 130k, VRON = 3.3V,
No Loading Current
--
--
10
mA
Shutdown Current
IVCC + IPVDD VRON = 0V
--
--
5
μA
Soft-Start/Slew Rate Control (based on 10nF CSS)
Soft-Start / Soft-Shutdown
ISS1
SOFT = 1.5V
--
20
--
μA
Normal VID Change Slew
Current
ISS2
SOFT = 1.5V
40
50
60
μA
Deeper Sleep Exit/VID
Change Slew Current
ISS3
For Render Mode Only, SOFT = 1.5V
80
100
120
μA
Reference and DAC
VDAC = 0.7500 − 1.5000
(No Load, Active Mode )
−0.8
0
0.8
%VID
DC Accuracy
VFB
VDAC = 0.5000 − 0.7500
−7.5
0
7.5
mV
RT8152C
1.089
1.1
1.111
Boot Voltage
VBOOT
RT8152D
1.188
1.2
1.212
V
Error Amplifier
DC Gain
RL = 47kΩ
(Note 5)
70
80
--
dB
Gain-Bandwidth Product
GBW
CLOAD = 5pF
(Note 5)
--
10
--
MHz
Slew Rate
SRCOMP
CLOAD = 10pF (Gain = −4,
Rf = 47kΩ, VOUT = 0.5V − 3V)
--
5
--
V/
μs
Output Voltage Range
VCOMP
RL = 47kΩ
0.5
--
3.6
V
Maximum Source Current
VCOMP = 2V
200
250
--
μA
Maximum Sink Current
IOUTEA_COMP
VCOMP = 2V
--
20
--
mA
Current Sense Amplifier
Input Offset Voltage
VOSCS
ISEN = ISEN_N = 1.5V
−1
--
1
mV
Impedance at Neg. Input
RISEN_N
ISEN_N = 1.5V
1
--
--
M
Ω
Impedance at Pos. Input
RISEN
ISEN = 1.5V
1
--
--
M
Ω
DC Gain
--
10
--
V/V
Input Range
VISEN_IN
VDAC = 1.1V, VISEN_IN = ISEN − ISEN_N
−50
--
80
mV
TON Setting
TON Pin Output Voltage
VTON
RTON = 80kΩ, VTON = VDAC = VBOOT
−5
0
5
%
ON-Time Setting
TON
IRTON = 80μA, VTON = VDAC = VBOOT
--
350
--
ns
RTON Current Range
IRTON
VTON = VDAC = VBOOT
25
--
280
μA
Minimum Off Time
TOff
IRTON = 80μA, VDAC = VBOOT
250
--
500
ns
Protection
Under Voltage Lock-out
Threshold
VUVLO
Falling edge, 80mV Hysteresis
3.9
4.1
4.3
V
Electrical Characteristics
(VCC = 5V, TA = 25
°C, unless otherwise specified)



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