RT7299B
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 (V
IN
+ 6.3V)
BOOT Pin Voltage --------------------------------------------------------------------------------------------------
−0.3V
to (V
IN
+ 6.3V)
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
(Note 4)
1.6V to 18V
4.5V to 18V
−40°C
to 125°C
−40°C
to 85°C
Recommended Operating Conditions
Power Input Voltage, PVIN ---------------------------------------------------------------------------------------
Supply Input Voltage, VIN ----------------------------------------------------------------------------------------
Junction Temperature Range -------------------------------------------------------------------------------------
Ambient Temperature Range -------------------------------------------------------------------------------------
Electrical Characteristics
(V
IN
= V
PVIN
= 12V, T
A
= 25°C, unless otherwise specified)
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
Symbol
Test Conditions
Min
Typ
Max
Unit
V
PVIN
V
IN
V
UVLO
V
UVLO
V
EN
= 0V
V
FB
= 0.61V, Not Switching
V
IH
V
IL
V
EN
Rising
V
EN
Falling
V
EN
= 1.1V
V
EN
= 1.3V
V
IN
Rising
1.6
4.5
--
--
--
--
--
--
4
150
3
600
18
18
4.5
--
9
1000
mV
A
V
--
1.1
--
--
1.21
1.17
1
3
1.3
--
--
--
V
A
Copyright
©
2019 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
4
DS7299B-05
June 2019
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
