RT2852BH
Absolute Maximum Ratings
(Note 1)
Supply Input Voltage, VIN, PVIN ---------------------------------------------------------------------------------------
−0.3V
to 20V
Switch Node Voltage, LX -------------------------------------------------------------------------------------------------
−1V
to 20.3V
LX (t
≤
10ns) ----------------------------------------------------------------------------------------------------------------
−5V
to 26.3V
BOOT Pin Voltage ---------------------------------------------------------------------------------------------------------
−0.3V
to 26.3V
Other Pins -------------------------------------------------------------------------------------------------------------------
−0.3V
to 6V
Power Dissipation, P
D
@ T
A
= 25°C
WQFN-14AL 3.5x3.5 ----------------------------------------------------------------------------------------------------- 2.083W
Package Thermal Resistance (Note 2)
WQFN-14AL 3.5x3.5,
θ
JA
------------------------------------------------------------------------------------------------ 48°C/W
WQFN-14AL 3.5x3.5,
θ
JC
----------------------------------------------------------------------------------------------- 3.8°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)
Power Input Voltage, PVIN ---------------------------------------------------------------------------------------------- 1.6V to 18V
Supply Input Voltage, VIN ----------------------------------------------------------------------------------------------- 4.5V to 18V
Junction Temperature Range --------------------------------------------------------------------------------------------
−40°C
to 125°C
Electrical Characteristics
Parameter
Supply Voltage
PVIN Power Input Operating
Voltage
VIN Supply Input Operating
Voltage
Under-Voltage Lockout
Threshold
Under-Voltage Lockout
Threshold Hysteresis
VIN Shutdown Current
VIN Quiescent Current
Enable Voltage
EN Threshold Voltage
Pull-Up Current
Hysteresis Current
V
IH
V
IL
V
PVIN
V
IN
V
UVLO
(V
IN
= 4.5V to 18V, V
PVIN
= 1.6V to 18V, T
A
=
−40°C
to 105°C, unless otherwise specified)
Symbol
Test Conditions
Min
Typ
Max
Unit
1.6
4.5
V
IN
Rising
--
--
V
EN
= 0V
V
FB
= 0.83V, not switching
V
EN
rising
V
EN
falling
V
EN
= 1.1V
V
EN
= 1.3V
--
--
--
1.1
--
--
--
--
4
150
3
600
1.21
1.17
1
3
18
18
4.5
--
9
1000
1.27
--
--
--
mV
A
A
V
V
UVLO
V
A
Copyright
©
2019 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
4
DS2852BH-01
June 2019
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
