RT6543A/B
Absolute Maximum Ratings (Note 1)
VSYS to PGND ----------------------------------------------------------------------------------------------------------- −0.3V to 28V
VCC to PGND ------------------------------------------------------------------------------------------------------------- −0.3V to 6.5V
RGND to PGND ----------------------------------------------------------------------------------------------------------- −0.3V to 0.3V
BOOT to PH --------------------------------------------------------------------------------------------------------------- −0.3V to 6.5V
LGATE to PGND
DC----------------------------------------------------------------------------------------------------------------------------- −0.3V to 6.8V
<100ns ----------------------------------------------------------------------------------------------------------------------- −2V to 7.5V
PH to PGND
DC----------------------------------------------------------------------------------------------------------------------------- −0.3V to 30V
<100ns ----------------------------------------------------------------------------------------------------------------------- −10V to 35V
UGATE to PGND
DC----------------------------------------------------------------------------------------------------------------------------- −0.3V to 36.8V
<100ns ----------------------------------------------------------------------------------------------------------------------- −10V to 41.8V
Other Pins------------------------------------------------------------------------------------------------------------------- −0.3V to 6.8V
Power Dissipation, PD @ TA = 25°C
WQFN-20L 3x3 ------------------------------------------------------------------------------------------------------------ 3.33W
Package Thermal Resistance (Note 2)
WQFN-20L 3x3, θJA ------------------------------------------------------------------------------------------------------- 30°C/W
WQFN-20L 3x3, θJC ------------------------------------------------------------------------------------------------------ 7.5°C/W
Junction Temperature ----------------------------------------------------------------------------------------------------- 150°C
Lead Temperature (Soldering, 10 sec.)------------------------------------------------------------------------------- 260°C
Storage Temperature Range -------------------------------------------------------------------------------------------- −65°C to 150°C
ESD Susceptibility (Note 3)
HBM (Human Body Model)---------------------------------------------------------------------------------------------- 2kV
Recommended Operating Conditions (Note 4)
VCC Input Voltage--------------------------------------------------------------------------------------------------------- 4.5V to 5.5V
VSYS Input Voltage ------------------------------------------------------------------------------------------------------ 3V to 24V
Junction Temperature Range-------------------------------------------------------------------------------------------- −40°C to 125°C
Electrical Characteristics
(VCC = 5V, VSYS = 7.4V, TA = 25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Supply Voltage VCC
Supply Voltage
VCC
4.5
--
5
5
5.5
--
V
ISHDN
IDACOFF
IVCC
VEN = 0V
A
A
mA
Supply Current
VEN = 5V, VID = 00
40
0.3
--
--
VEN = 5V, no switching
--
0.55
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is a registered trademark of Richtek Technology Corporation.
DS6543A/B-01 March 2020
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5
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