RT6220
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Current Limit
Current Limit
IOC
Valley current of low-side switch
7.6
--
11.4
A
Switching Frequency and Minimum Off Timer
Switching Frequency
Minimum Off-Time
Protections
fSW
450
--
500
200
550
--
kHz
ns
tOFF_MIN
OVP Trip Threshold
VOVP
With respect to output voltage
With respect to output voltage
120
--
125
5
130
--
%
s
%
OVP Propagation Delay TOVPDLY
UVP Trip Threshold VUVP
53
--
58
5
63
--
UVP Propagation Delay TUVPDLY
s
Reference and Soft-Start
Feedback Reference
VREF
0.594 0.600 0.606
V
Voltage
Soft-Start Time
TSS
From EN high to PGOOD high
1
1.5
2
ms
Enable and UVLO
EN Input High Voltage
EN Hysteresis
VENH
1.25
50
--
1.35
200
1
1.45
250
--
V
VENHYS
mV
V
EN = 2V
EN Input Current
IEN
A
VEN = 0V
--
0
--
VCC UVLO Rising
VCC UVLO Hysteresis
VCC Regulator
VCCUVLO
VCCHYS
3.8
75
4.2
400
4.45
650
V
mV
VCC Regulator
VVCC
4.805
4.4
5
5.295
4.8
V
V
VCC Switch Over
Threshold to VBYP
VBYP rising edge
4.6
VCC Switch Over
Hysteresis
150
--
200
3
400
5
mV
Switch Over
On-Resistance
Power Good Indicator
PGOOD Threshold From
Lower
VOUT rising
VOUT falling
86.5
--
91.5
10
96.5
--
%
%
PGOOD Low Hysteresis
PGOOD Low to High
Delay
TPGDLY
VPGSINK
IPGLEAK
--
0.5
--
ms
PGOOD Sink Current
Capability
Sink 4mA
--
--
--
--
0.4
V
PGOOD Leakage
Current
VPGOOD = 5V
100
nA
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6
DS6220-10 December 2019
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
