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RT8205LZQW Datasheet(PDF) 8 Page - Richtek Technology Corporation

Part # RT8205LZQW
Description  High Efficiency, Main Power Supply Controller for Notebook Computer
Download  26 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT8205LZQW Datasheet(HTML) 8 Page - Richtek Technology Corporation

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RT8205L/M
8
DS8205L/M-05 June 2011
www.richtek.com
To be continued
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Internal Regulator and Reference
VREG5 Output Voltage
VVREG5
VOUT1 = GND, IVREG5 < 100mA
4.8
5
5.2
V
VOUT1 = GND, 6.5V < VIN < 25V,
IVREG5 < 100mA
4.75
5
5.25
VOUT1 = GND, 5.5V < VIN < 25V,
IVREG5 < 50mA
4.75
5
5.25
VREG3 Output Voltage
VVREG3
VOUT2 = GND, IVREG3 < 100mA
3.2
3.33
3.46
V
VOUT2 = GND, 6.5V < VIN < 25V,
IVREG3 < 100mA
3.13
3.33
3.5
VOUT2 = GND, 5.5V < VIN < 25V,
IVREG3 < 50mA
3.13
3.33
3.5
VREG5 Output Current
IVREG5
VVREG5 = 4.5V, VOUT1 = GND
100
175
250
mA
VREG3 Output Current
IVREG3
VVREG3 = 3V, VOUT2 = GND
100
175
250
mA
VREG5 Switchover
Threshold to VOUT1
VSW5
VOUT1 Rising Edge
4.6
4.75
4.9
V
VOUT1 Falling Edge
4.3
4.4
4.5
VREG3 Switchover
Threshold to VOUT2
VSW3
VOUT2 Rising Edge
2.975
3.125
3.25
V
VOUT2 Falling Edge
2.775
2.875
2.975
VREGx Switchover Equivalent
Resistance
RSWx
VREGx to VOUTx, 10mA
--
1.5
3
Ω
REF Output Voltage
VREF
No External Load
1.98
2
2.02
V
REF Load Regulation
0 < ILOAD < 100μA
--
10
--
mV
REF Sink Current
REF in Regulation
5
--
--
μA
UVLO
VREG5 Under Voltage
Lockout Threshold
Rising Edge
--
4.20
4.35
V
Falling Edge
3.7
3.9
4.1
VREG3 Under Voltage
Lockout Threshold
SMPSx off
--
2.5
--
V
Power Good
PGOOD Threshold
PGOOD Detect, FBx Falling Edge
82
85
88
%
Hysteresis, Rising Edge with SS
Delay Time
--
6
--
PGOOD Propagation Delay
Falling Edge, 50mV Overdrive
--
10
--
μs
PGOOD Leakage Current
High State, Forced to 5.5V
--
--
1
μA
PGOOD Output Low Voltage
ISINK = 4mA
--
--
0.3
V
Fault Detection
Over Voltage Protection Trip
Threshold
VFB_OVP
OVP Detect, FBx Rising Edge
109
112
116
%
Over Voltage Protection
Propagation Delay
FBx = 2.35V
--
5
--
μs
Under Voltage Protection Trip
Threshold
VFB_UVP
UVP Detect, FBx Falling Edge
49
52
56
%
UVP Shutdown Blanking Time tSHDN_UVP From ENTRIPx Enable
--
5
--
ms


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