RT6543A/B
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
VCC POR/UVLO Threshold
POR Threshold
VCC_POR
4
4.2
3.9
4.4
4.1
V
V
UVLO Threshold
VVCC_UVLO
3.7
Logic Threshold
VID0/VID1 Input Low
Voltage
VID_IL
VID_IH
Falling edge, VCC = 5V
Rising edge, VCC = 5V
--
1
0.3
--
V
V
--
--
VID0/VID1 Input High
Voltage
EN Input Low Voltage
VEN_IL
Falling edge, VCC = 5V
Rising edge, VCC = 5V
Rising edge, VCC = 5V
Falling edge, VCC = 5V
--
1
0.3
--
--
--
--
--
V
V
V
V
EN Input High Voltage
FSWSEL Input High Level
FSWSEL Input Low Level
VEN_IH
VFSWSEL_H
VFSWSEL_L
4.5
--
--
0.4
FSWSEL Input Floating
Level
VFSWSEL_HIZ Floating, VCC = 5V
2
2.5
3
V
VSYS UVLO
VSYS UVLO Threshold
UVLO Hysteresis
VSYS_UVLO
--
--
--
--
--
2.7
200
2
--
--
--
--
--
V
VSYS_HYS
mV
A
A
A
VSYS = 19V, VCC = 5V
Input Current
IVSYS
VSYS = 8.4V, VCC = 5V
VCC < VCC_UVLO
0.9
0
Thermal Shutdown
Thermal Shutdown
Threshold
TSD
--
--
160
20
--
--
C
C
Thermal Shutdown
Hysteresis
TSD
Power Good Indicator (upper side threshold decide by OV threshold)
PGOOD High Threshold
PGOOD Low Threshold
PGOOD Leakage Current
VPGOOD_IH
VPGOOD_IL
ILK_PGOOD
Rising edge
86
80
90
84
94
88
1
%VOUT
%VOUT
A
Falling edge
High state, VPGOOD = 5V
--
--
--
--
PGOOD Output Low
Voltage
VPGOOD_LOW IPGOOD_LOW = 10mA
0.3
V
Input Supply Voltage
Supply Voltage
VIN
3
--
24
V
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6
DS6543A/B-01 March 2020
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
