RT6243A/B
Absolute Maximum Ratings (Note 1)
Supply Input Voltage, VIN ----------------------------------------------------------------------------------------------- −0.3V to 20V
Enable Pin Voltage, EN -------------------------------------------------------------------------------------------------- −0.3V to 20V
Switch Voltage, SW ------------------------------------------------------------------------------------------------------ −0.3V to 20V
SW (t ≤ 100ns)------------------------------------------------------------------------------------------------------------- −5V to 25V
Boot Voltage, BOOT ------------------------------------------------------------------------------------------------------ −0.3V to 26V
BOOT to SW (BOOT−SW)---------------------------------------------------------------------------------------------- −0.3V to 6V
All Other Pins -------------------------------------------------------------------------------------------------------------- −0.3V to 6V
PowerDissipation, PD @ TA = 25°C
VQFN-18L 3.5x3.5 (FC) -------------------------------------------------------------------------------------------------- 3.57W
Package Thermal Resistance (Note 2)
VQFN-18L 3.5x3.5 (FC), θJA -------------------------------------------------------------------------------------------- 28°C/W
VQFN-18L 3.5x3.5 (FC), θJC -------------------------------------------------------------------------------------------- 2.7°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)
Supply Voltage, VIN ------------------------------------------------------------------------------------------------------ 4.5V to 17V
Junction Temperature Range-------------------------------------------------------------------------------------------- −40°C to 125°C
Electrical Characteristics
(VIN = 12V, TA = 25°C, unless otherwise specified.)
Parameter
Input Voltage Range
Supply Current
Symbol
VIN
Test Conditions
Min
Typ
Max
Unit
4.5
--
17
V
Supply Current (Shutdown)
Supply Current (Quiescent)
Logic Threshold
ISHDN
IQ
VEN = 0V
--
--
7
--
A
A
VEN = 5V, non-switching
600
700
EN Input Rising Threshold
EN Input Falling Threshold
EN Hysteresis
VENH
VENL
VEN
IENP1
IENP2
1.175 1.225
1.025 1.104
1.3
1.15
--
V
V
--
0.35
3
0.121
2
V
VEN = 1V
VEN = 1.3V
VEN = 2V
2.95
5.5
--
A
A
A
EN Pull-Up Current
RT6243A
4.2
2.5
EN Pull-Down Current RT6243B IENDN
--
Copyright 2019 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
DS6243A/B-01 June 2019
www.richtek.com
9
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