RT6236A/B
Absolute Maximum Ratings (Note 1)
Supply Voltage, VIN ------------------------------------------------------------------------------------------------ −0.3V to 21V
Switch Voltage, SW ------------------------------------------------------------------------------------------------ −0.3V to (VIN + 0.3V)
Switch Voltage, <100ns ------------------------------------------------------------------------------------------- −9V to (VIN + 0.3V)
BOOT Voltage -------------------------------------------------------------------------------------------------------- −0.3V to 27.3V
BOOT to SW, <100ns ---------------------------------------------------------------------------------------------- −3V to 9V
ENtoGND------------------------------------------------------------------------------------------------------------- −0.3V to 6V
Other Pins------------------------------------------------------------------------------------------------------------- −0.3V to 6V
Power Dissipation, PD @ TA = 25°C
UQFN-13JL2x3 (FC) ----------------------------------------------------------------------------------------------- 1.54W
Package Thermal Resistance (Note 2)
UQFN-13JL 2x3 (FC), θJA ------------------------------------------------------------------------------------------ 64.8°C/W
UQFN-13JL 2x3 (FC), θJC ----------------------------------------------------------------------------------------- 7.3°C/W
Junction Temperature Range-------------------------------------------------------------------------------------- 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 18V
Junction Temperature Range-------------------------------------------------------------------------------------- −40°C to 125°C
Ambient Temperature Range-------------------------------------------------------------------------------------- −40°C to 85°C
Electrical Characteristics
(VIN = 12V, TA = −40°C to 85°C, unless otherwise specified)
Parameter
Supply Voltage
Symbol
Test Conditions
Min
Typ
Max
Unit
VIN Supply Input Operating
Voltage
VIN
4.5
4
--
18
4.4
--
V
Under-Voltage Lockout
Threshold
VUVLO
4.2
0.5
V
Under-Voltage Lockout
Threshold Hysteresis
VUVLO
--
Shutdown Current
ISHDN
IQ
VEN = 0V
--
--
1.5
0.8
10
A
Quiescent Current
VEN = 2V, VFB = 0.7V
1.2
mA
Enable Voltage
Enable Voltage Threshold
Enable Voltage Hysteresis
Feedback Voltage
VEN rising
1.1
--
1.2
1.3
--
V
200
mV
Feedback Voltage Threshold VFB
Feedback Input Current IFB
4.5V VIN 18V
0.693
0.7 0.707
-- 0.1
V
VFB = 0.71V
0.1
A
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is a registered trademark of Richtek Technology Corporation.
DS6236A/B-03 January 2018
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