RT8223A データシートの表示（PDF） - Richtek Technology
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RT8223A Datasheet PDF : 26 Pages
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RT8223A/B
Parameter
Symbol
Test Conditions
Current Limit Threshold
Zero-Current Threshold
Internal Regulator and Reference
VREG5 Output Voltage
VVREG5
VREG3 Output Voltage
VREG5 Short Current
VVREG3
IVREG5
GND−PHASEx, VENTRIPx =2V
SKIPSEL = VREG5 or GND,
GND−PHASEx
VOUT1 = GND, 6V < VIN < 25V,
0 < IVREG5 < 70mA
VOUT2 = GND, 6V < VIN < 25V,
0 < IVREG3 < 70mA
VREG5 = GND, VOUT1 = GND
VREG3 Short Current
IVREG3
VREG5 Switchover Threshold
to VOUT1
VREG3 Switchover Threshold VSW3
VREGx Switchover Equivalent
Resistance
RSW
REF Output Voltage
REF Load Regulation
VRE F
REF Sink Current
UVLO
VREG3 = GND, VOUT2 = GND
Rising Edge at VOUT1 Regulation
Point
Rising Edge at VOUT2 Regulation
Point, Hysteresis = 6%
VREGx to VOUTx, 10mA
No External Load
0 < ILOAD < 50uA
REF in Regulation
VREG3 UVLO Threshold
VREG5 UVLO Threshold
SMPSx off
Rising Edge
Falling Edge
Power Good
PGOOD Threshold
PGOOD Detect (FBx Rising Edge)
VPGOODx Hysteresis
PGOOD Propagation Delay
Falling Edge, 50mV Overdrive
PGOOD Leakage Current
High State, Forced to 5.5V
PGOOD Output Low Voltage
ISINK = 4mA
Fault Detection
OVP Trip Threshold
VFB_OV P
FBx with Respect to Internal
Reference
OVP Propagation Delay
UVP Trip Threshold
UVP Detect (FBx Falling Edge)
VUV
Hysteresis
UVP Shutdown Blanking Time tSHDN_UVP From ENTRIPx Enable
Thermal Shutdown
Thermal Shutdown
TSHDN
Thermal Shutdown Hysteresis
Discharge
VOUTx Discharge Current
VREGx Discharge Current
IDISx
ENTRIPx = ENC = 0V, VOUTx = 0.5V
EN = 0V, VREGx = 0.5V
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10
Min Typ Max Unit
180 200 220 mV
--
3
-- mV
4.8
5
5.2 V
3.2 3.33 3.46 V
--
175 275 mA
--
175 275 mA
4.53 4.66 4.79 V
2.98 3.08 3.18 V
--
1.5
3
Ω
1.98 2 2.02 V
--
10
-- mV
5
--
--
μA
--
2.5
--
V
-- 4.35 4.5 V
3.9 4.05 4.25 V
−11 −7.5 −4
%
--
8
--
--
10
--
μs
--
--
1
μA
--
--
0.3 V
108 111 115 %
--
10
--
μs
46
52
58
%
--
8
--
--
3
-- ms
--
150
--
°C
--
10
--
°C
10
60
2.5
--
-- mA
-- mA
To be continued
DS8223A/B-04 April 2011
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