RT6248B
Absolute Maximum Ratings (Note 1)
Supply Voltage, VIN -------------------------------------------------------------------------------------------- −0.3V to 20V
Enable Pin Voltage, EN --------------------------------------------------------------------------------------- −0.3V to 20V
FB Pin Voltage, FB -------------------------------------------------------------------------------------------- −0.3V to 4.5V
Switch Voltage, LX --------------------------------------------------------------------------------------------- −0.3V to (VIN + 0.3V)
<30ns ------------------------------------------------------------------------------------------------------------- −5V to 21V
Boot Voltage, BOOT ------------------------------------------------------------------------------------------- (VLX − 0.3V) to (VLX + 6V)
Other I/O Pin Voltages ---------------------------------------------------------------------------------------- −0.3V to 6V
Power Dissipation, PD @ TA = 25°C
UQFN-12HL 3x3 (FC) ----------------------------------------------------------------------------------------- 2.5W
Package Thermal Resistance (Note 2)
UQFN-12HL 3x3 (FC), θJA ------------------------------------------------------------------------------------ 40°C/W
Lead Temperature (Soldering, 10 sec.) -------------------------------------------------------------------- 260°C
Junction Temperature ------------------------------------------------------------------------------------------ 150°C
Junction Temperature Range --------------------------------------------------------------------------------- −40°C to 125°C
Storage Temperature Range---------------------------------------------------------------------------------- −65°C to 150°C
ESD Susceptibility (Note 3)
HBM (Human Body Model) ---------------------------------------------------------------------------------- 2kV
Recommended Operating Conditions (Note 4)
Supply Input Voltage, VIN ------------------------------------------------------------------------------------ 4.5V to 18V
Ambient Temperature Range--------------------------------------------------------------------------------- −40°C to 85°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
--
18
V
Supply Current (Shutdown)
Supply Current (Quiescent)
Logic Threshold
ISHDN
IQ
VEN = 0
IOUT = 0, VFB = VREF x 105%
--
--
5
10
--
A
A
130
EN Input Low Voltage
EN Input High Voltage
Output Voltage
VENL
VENH
0.4
0.54
0.68
0.8
V
V
0.45 0.625
VCC Regulator Voltage
Feedback Voltage
VCC
--
5
--
V
Feedback Reference Voltage VREF
Feedback Current IFB
0.594
0.6
--
0.606
50
V
VFB = 4V
50
nA
Copyright 2018 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
DS6248B-01 May 2018
www.richtek.com
5
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