RT8223N 데이터 시트보기 (PDF) - Richtek Technology
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RT8223N Datasheet PDF : 23 Pages
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RT8223N
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Internal Regulator and Reference
VREG5 Output Voltage
VREG3 Output Voltage
VREG5 Output Current
VVREG5
VVREG3
IVREG5
VOUT1 = GND, IVREG5 < 100mA
VOUT1 = GND, 6.5V < VIN < 25V,
IVREG5 < 100mA
VOUT1 = GND, 5.5V < VIN < 25V,
IVREG5 < 50mA
VOUT2 = GND, IVREG3 < 100mA
VOUT2 = GND, 6.5V < VIN < 25V,
IVREG3 < 100mA
VOUT2 = GND, 5.5V < VIN < 25V,
IVREG3 < 50mA
VVREG5 = 4.5V, VOUT1 = GND
4.8
5
5.2
4.75
5
5.25
V
4.75 5 5.25
3.2 3.33 3.46
3.13 3.33 3.5
V
3.13 3.33 3.5
100 175 250 mA
VREG3 Output Current
VREG5 Switch-over
Threshold to VOUT1
VREG3 Switch-over
Threshold to VOUT2
VREGx Switch-over
Equivalent Resistance
REF Output Voltage
IVREG3
VSW5
VSW3
RSWx
VREF
VVREG3 = 3V, VOUT2 = GND
VOUT1 Rising Edge
VOUT1 Falling Edge
VOUT2 Rising Edge
VOUT2 Falling Edge
VREGx to VOUTx, 10mA
No External Load
100 175 250 mA
4.6 4.75 4.9
V
4.3 4.4 4.5
2.975 3.125 3.25
V
2.775 2.875 2.975
--
1.5
3
Ω
1.98 2 2.02 V
REF Load Regulation
REF Sink Current
0 < ILOAD < 100μA
REF in Regulation
--
10
--
mV
5
--
--
μA
UVLO
VREG5 Under Voltage
Lockout Threshold
VREG3 Under Voltage
Lockout Threshold
Power Good
Rising Edge
Falling Edge
SMPSx off
-- 4.2 4.45
V
3.7 3.9 4.1
--
2.5
--
V
PGOOD Threshold
PGOOD Propagation
Delay
PGOOD Leakage Current
PGOOD Detect, FBx falling Edge
82 85 88
Hysteresis, Rising Edge with SS Delay
Time
--
6
--
%
Falling Edge, 50mV Overdrive
--
10
--
μs
High State, Forced to 5.5V
--
--
1
μA
PGOOD Output Low
Voltage
ISINK = 4mA
--
--
0.3
V
Fault Detection
Over Voltage Protection
Trip Threshold
Over Voltage Protection
Propagation Delay
Under Voltage Protection
Trip Threshold
VFB_OVP
VFB_UVP
OVP Detect, FBx Rising Edge
FBx = 2.35V
UVP Detect, FBx Falling Edge
109 112 116 %
--
5
--
μs
49
52 56
%
DS8223N-03 April 2011
To be continued
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