RT6214A/B
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Supply Current
Supply Current (Shutdown)
Supply Current (Quiescent)
Soft-Start
ISHDN
VEN = 0V
--
--
--
5
A
IQ
VEN = 2V, VFB = 0.85V
0.5
--
mA
Soft-Start Internal Charging Current
Enable Voltage
ISS
4.2
6
7.8
A
VEN rising
VEN rising
1.38
1.32
--
1.5
1.62
1.55
--
Enable Voltage Threshold
VEN_R
V
V
1.43
0.18
Enable Voltage Hysteresis
Feedback Voltage
Feedback Reference Voltage
Feedback Leakage Current
Internal MOSFET
VREF
IFB
4.5V VIN 18V,
0.753
0.765 0.777
V
0.2
0
0.2
A
High-Side On-Resistance
Low-Side On-Resistance
Current Limit
RDS(ON)_H
RDS(ON)_L
VBOOT VLX = 4.8V
--
--
100
50
--
--
m
High-Side Switch Current Limit
Low-Side Switch Current Limit
Switching Frequency
Switching Frequency
ILIM_H
ILIM_L
--
4
7
--
A
4.5
5.3
fSW
--
650
--
kHz
ns
On-Time Timer Control
Minimum On-Time
tON_MIN
--
--
60
--
Minimum Off-Time
tOFF_MIN
240
310
Output Under-Voltage Protections
UVP detect
Hysteresis
57.5
--
62.5
10
67.5
--
UVP Trip Threshold
%
Thermal Shutdown
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
Power Good
TSD
--
--
150
20
--
--
C
C
TSD
FB rising
FB falling
--
--
90
85
--
--
%
%
Power Good Threshold
VPGOOD
Note 1. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These
are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in
the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions may affect
device reliability.
Note 2. JA is measured under natural convection (still air) at T = 25C with the component mounted on a high
A
effective-thermal-conductivity four-layer test board on a JEDEC 51-7 thermal measurement standard. The first layer is
filled with copper. JA is measured at the lead of the package.
Note 3. Devices are ESD sensitive. Handling precaution recommended.
Note 4. The device is not guaranteed to function outside its operating conditions.
Copyright © 2018 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
10
DS6214A/B-09 August 2018
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
