RT6237A/B
Absolute Maximum Ratings
(Note 1)
Supply Voltage, VIN ------------------------------------------------------------------------------------------------
−0.3V
to 21V
Switch Voltage, SW ------------------------------------------------------------------------------------------------
−0.3V
to (V
IN
+ 0.3V)
Switch Voltage, <10ns ---------------------------------------------------------------------------------------------
−3V
to (V
IN
+ 0.3V)
BOOT Voltage --------------------------------------------------------------------------------------------------------
−0.3V
to 27.3V
EN to GND -------------------------------------------------------------------------------------------------------------
−0.3V
to 6V
Other Pins -------------------------------------------------------------------------------------------------------------
−0.3V
to 6V
Power Dissipation, P
D
@ T
A
= 25°C
UQFN-14L 2x3 (FC) ------------------------------------------------------------------------------------------------- 2.1W
Package Thermal Resistance (Note 2)
UQFN-14L 2x3 (FC),
θ
JA
------------------------------------------------------------------------------------------- 47.5°C/W
UQFN-14L 2x3 (FC),
θ
JC
------------------------------------------------------------------------------------------- 4.1°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
(Note 4)
Recommended Operating Conditions
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
(V
IN
= 12V, T
A
= 25°C, unless otherwise specified)
Parameter
Supply Current
Supply Current (Shutdown)
Supply Current (Quiescent)
Logic Threshold
EN Input
Voltage
Logic-High
Hysteresis
Symbol
I
SHDN
I
Q
Test Conditions
V
EN
= 0V
V
EN
= 2V, V
FB
= 0.7V
Min
--
--
1.1
--
Typ
1.5
0.6
1.2
0.2
0.7
--
5
--
--
210
Max
6
0.9
1.3
--
0.708
0.1
--
5
20
--
Unit
A
mA
V
V
FB
Voltage and Discharge Resistance
Feedback Voltage
Feedback Current
V
PVCC
Output
V
PVCC
Output Voltage
Line Regulation
Load Regulation
Output Current
I
PVCC
V
PVCC
6V
V
IN
18V, 0 < I
PVCC
5mA
6V
V
IN
18V, I
PVCC
= 5mA
0
I
PVCC
20mA
V
IN
= 6V, V
PVCC
= 4V, T
A
= 25C
--
--
--
--
V
mV
mV
mA
V
FB
I
FB
4.5V
V
IN
18V
V
FB
= 0.71V
0.692
0.1
V
A
Copyright
©
2016 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
8
DS6237A/B-04 May 2016
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
