RT6228A/B/C
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Output Over-Voltage Protection
Output Over-Voltage Threshold
Output Over-Voltage Hysteresis
Output Over-Voltage Delay Time
Output Under-Voltage Protection
Output Under-Voltage Threshold
VOUT rising
115
--
120
3
125
--
%
%
--
20
--
s
VFB falling
54
--
60
20
64
--
%
s
Output Under-Voltage Delay
Time
FB forced below UV threshold
From EN high
UV Blank Time
--
1.65
--
ms
Power Good
Power Good Threshold
Power Good Hysteresis
Power Good Delay Time
CLK Output
VTH_PGLH
VOUT rising (good)
88
--
90
15
10
92
--
%
%
VTH_PGLH
--
--
s
CLK Output Voltage (High-Level) VCLKH
CLK Output Voltage (Low-Level) VCLKL
IVCLK = 10mA
4.9
0
5
5.1
0.2
--
V
V
IVCLK = 10mA
0.1
300
CLK Frequency
fCLK
--
kHz
LDO Regulator
V
IN = 12V, no load
3.267
3.217
3.267
3.217
150
3.3
3.3
3.3
3.3
200
3.333
3.383
3.333
3.383
300
VIN 6V, ILDO 100mA
VIN 5.5V, ILDO 35mA
VIN 5V, ILDO 20mA
LDO Output Voltage
VLDO
V
LDO Output Current Limit
Bypass Switch
ILMTLDO
mA
Bypass Switch RON
RBYP
--
--
3
--
--
Bypass Switch Turn-on Voltage
VBYP_ON
RT6228A/B
4.7
V
Bypass Switch Switchover
Hysteresis
--
0.2
--
V
Thermal Shutdown
Thermal Shutdown Threshold
TSD
--
150
--
°C
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. θJA is measured in the natural convection at TA = 25°C on a four-layer Richtek Evaluation Board.
Note 3. Devices are ESD sensitive. Handling precaution is 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
8
DS6228A/B/C-02 September 2018
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
