RT8868A 데이터 시트보기 (PDF) - Richtek Technology
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RT8868A Datasheet PDF : 21 Pages
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RT8868A
Parameter
Input Threshold
Enable Input
Logic-High
Threshold Voltage Logic-Low
PWROK Input
Logic-High
Threshold Voltage Logic-Low
VID5 to VID0 Rising Threshold
VID5 to VID0 Hysteresis
VID5 to VID0 Pull-Down
Current
Reference Voltage Accuracy
Symbol
VENHI
VENLO
VPOKHI
VPOKLO
VVID5 to 0
V VID5 to 0 HYS
IVID5 to 0
DAC Accuracy
Error Amplifier
DC Gain
Gain-Bandwidth
Slew Rate
Output Voltage Range
Power Good
ADC
GBW
SR
VCOMP
Test Conditions
EN Rising
EN Falling
PWROK Rising
PWROK Falling
VID5 to VID0 Rising
VID5 to VID0 Falling
VVID5 to 0 = 1.5V
1V to 1.55V
0.8V to 1V
0.5V to 0.8V
No Load
CLOAD = 10pF
CLOAD = 10pF
RLOAD = 47kΩ
Over Voltage Threshold
VPGOOD-OV
FB Rising
Under Voltage Threshold
VPGOOD-UV
FB Falling
Over Voltage Threshold_NB VPGOOD-OV_NB FB_NB Rising
Under Voltage Threshold_NB VPGOOD-UV_NB FB_NB Falling
Power Good Low Voltage
Current Sense Amplifier
Max Current
Input Offset Voltage
Oscillator
Running Frequency
Ramp Amplitude
Soft-Start
Soft-Start Slew Rate
VID change Slew Rate
VPGOOD
IGM MA X
VOSC S
fOSC
VRAMP
SRSS
SRVID
IPGOOD = 4mA
VCSP = 1.3V
Sink Current from CSN
RRT = 40kΩ
Slew Rate
Slew Rate
Min
Typ
Max Unit
2
--
--
V
--
--
0.8
2
--
--
V
--
--
0.8
0.75
0.8
0.85
V
--
25
--
mV
--
16
30
μA
−0.5
--
−8
--
−10
--
0.5
%
8
mV
10
mV
--
80
--
dB
--
10
--
MHz
10
--
--
V/μs
0.5
--
3.6
V
VDAC
VDAC
VDAC
V
+210mV +240mV +270mV
VDAC
VDAC
VDAC
V
−330mV −300mV −270mV
VDAC
VDAC
VDAC
V
+210mV +240mV +270mV
VDAC
VDAC
VDAC
V
−330mV −300mV −270mV
--
--
0.4
V
100
--
−2
0
--
μA
2
mV
270
300
330 kHz
--
1.6
--
V
2.5
3.25
2.5
3.25
4 mV/μs
4 mV/μs
Copyright ©2012 Richtek Technology Corporation. All rights reserved.
www.richtek.com
8
is a registered trademark of Richtek Technology Corporation.
DS8868A-00 May 2012
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