RT6222A/B
Absolute Maximum Ratings
(Note 1)
VIN to GND -------------------------------------------------------------------------------------------------------------------
−0.3V
to 20V
SW to GND ------------------------------------------------------------------------------------------------------------------
−0.3V
to 20V
<10ns -------------------------------------------------------------------------------------------------------------------------
−5V
to 25V
BOOT to SW ----------------------------------------------------------------------------------------------------------------
−0.3V
to 6V
BOOT to GND ---------------------------------------------------------------------------------------------------------------
−0.3V
to 26V
Other Pins --------------------------------------------------------------------------------------------------------------------
−0.3V
to 6V
Power Dissipation, P
D
@ T
A
= 25°C
TSOT-23-6 (FC) ------------------------------------------------------------------------------------------------------------- 1.429W
Package Thermal Resistance (Note 2)
TSOT-23-6 (FC),
θ
JA
-------------------------------------------------------------------------------------------------------- 70°C/W
TSOT-23-6 (FC),
θ
JC
------------------------------------------------------------------------------------------------------- 15°C/W
Lead Temperature (Soldering, 10 sec.) -------------------------------------------------------------------------------- 260°C
Junction Temperature ------------------------------------------------------------------------------------------------------ 150°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 ------------------------------------------------------------------------------------------------ 4.3V 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
Shutdown Current
Quiescent Current
Switch-On
Resistance
Oscillator Frequency
Maximum Duty Cycle
Minimum On-Time
Feedback Threshold Voltage
EN Input Threshold
Logic-High
Logic-Low
High-Side
Low-Side
Symbol
I
SHDN
I
Q
R
DS(ON)_H
R
DS(ON)_L
f
SW
D
MAX
t
ON
V
FB
V
EN_H
V
EN_L
V
UVLO
Test Conditions
V
EN
= 0V
V
EN
= 2V, V
FB
= 1V
V
BOOTSW
= 4.8V
V
IN
= 5V
Min
--
--
--
--
--
--
--
Typ
--
0.5
150
90
500
90
60
600
--
---
3.9
340
800
160
Max
4
--
--
--
--
--
--
609
--
0.4
4.25
--
--
--
Unit
A
mA
m
kHz
%
ns
mV
V
V
mV
s
C
In CCM Mode
591
1.5
--
VIN Under-Voltage Lockout
Threshold
VIN Under-Voltage Lockout
Threshold Hysteresis
Soft-Start Time
Thermal Shutdown Threshold
VIN rising
3.55
--
t
SS
T
SD
--
--
Copyright
©
2018 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
4
DS6222A/B-01 August 2018
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
