RT8206A RICHTEK [Richtek Technology Corporation], RT8206A Datasheet - Page 10

• Manufacturer Part Number: RT8206A
• Description: High-Efficiency, Main Power Supply Controllers for Notebook Computers
• Manufacturer: RICHTEK [Richtek Technology Corporation]

RT8206A/B
www.richtek.com
10
I
Current-Limit Threshold
Zero-Current Threshold
Internal Regulator and Reference
LDO Output Voltage
LDO Output Current
LDO Short-Circuit Current
LDO 5V Switchover
Threshold to BYP
LDO Switchover Equivalent
Resistance
REF Output Voltage
REF Load Regulation
REF Sink Current
UVLO
PVCC UVLO Threshold
Power Good
PGOODx Threshold
PGOODx Propagation Delay
PGOODx Leakage Current
PGOODx Output Low
Voltage
Fault Detection
OVP Trip Threshold
OVP Propagation Delay
UVP Trip Threshold
UVP Shutdown Blanking
Time
Thermal Shutdown
Thermal Shutdown
Thermal Shutdown
Hysteresis
Logic Input
FB1/FB2 Input Voltage
LIM
Adjustment Range
Parameter
V
I
V
R
V
PVCC
V
t
T
LDO
SHDN_UVP
Symbol
LDO
BYP
REF
FB_OVP
SHDN
SW
SKIP = GND or REF, GND − PHASEx
I
REF in Regulation
Falling Edge
High State, Forced to 5.5V
FBx with 50mV Overdrive
FBx with Respect to Internal Ref.
V
GND
− PHASEx
BYP = GND, 6V < V
0 < I
BYP = GND, V
LDO = GND, BYP = GND
Falling Edge, Rising Edge at BYP
Regulation Point
LDO to BYP, 10mA
No External Load
Rising Edge
Falling Edge
FBx with Respect to Internal
Reference, Falling Edge,
Hysteresis = 1%
I
FBx with Respect to Internal Ref.
From ENx Enable
Low Level (Internal Fixed V
High Level (Internal Fixed V
REF
SINK
ILIMx
LDO
= 0 to 50uA
= 4mA
= I
< 70mA
LIMx
Test Conditions
× R
IN
V
V
V
ILIMx
ILIMx
ILIMx
= 6V to 25V
ILIMx
IN
= 0.5V
= 1V
= 2V
< 25V,
OUTx
OUT x
)
)
V
4.53
1.98
Min
180
−11
108
CC
0.5
4.9
3.9
40
90
70
10
65
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−1
DS8206A/B-04 March 2011
4.66
4.35
4.05
−7.5
Typ
100
200
200
150
111
1.5
50
10
10
10
70
10
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3
5
2
3
To be continued
Max
4.79
2.02
110
220
300
115
5.1
4.5
0.3
0.2
60
−4
75
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2
3
1
Unit
mV
mV
mA
mA
mV
ms
μA
μA
°C
°C
μs
μs
%
%
%
Ω
V
V
V
V
V
V
V