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
Power Dissipation, P
D
@ T
A
= 25°C
VQFN-18L 3.5x3.5 (FC) -------------------------------------------------------------------------------------------------- 3.57W
Package Thermal Resistance (Note 2)
VQFN-18L 3.5x3.5 (FC),
θ
JA
-------------------------------------------------------------------------------------------- 28°C/W
VQFN-18L 3.5x3.5 (FC),
θ
JC
-------------------------------------------------------------------------------------------- 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
(V
IN
= 12V, T
A
= 25°C, unless otherwise specified.)
Parameter
Input Voltage Range
Supply Current
Supply Current (Shutdown)
Supply Current (Quiescent)
Logic Threshold
EN Input Rising Threshold
EN Input Falling Threshold
EN Hysteresis
EN Pull-Up Current
RT6243A
Symbol
V
IN
Test Conditions
Min
4.5
Typ
--
Max
17
Unit
V
I
SHDN
I
Q
V
EN
= 0V
V
EN
= 5V, non-switching
--
--
7
600
--
700
A
A
V
ENH
V
ENL
V
EN
I
ENP1
I
ENP2
I
ENDN
V
EN
= 1V
V
EN
= 1.3V
V
EN
= 2V
1.175
1.025
--
0.35
3
--
1.225
1.104
0.121
2
4.2
2.5
1.3
1.15
--
2.95
5.5
--
V
V
V
A
A
A
EN Pull-Down Current RT6243B
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
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
