RT7263E
Parameter
Enable Current
SYNC Threshold
Voltage
Logic-High
Logic-Low
V
SYNCH
V
SYNCL
f
SYNC
I
SYNC
V
SYNC
= 6V
Symbol
V
EN
= 2V
V
EN
= 0V
Test Conditions
Min
--
--
1.8
--
0.3
--
--
--
Sink 4mA
--
--
V
UVLO
ΔV
UVLO
V
IN
Rising
3.8
--
--
I
CC
= 5mA
t
SS
T
SD
ΔT
SD
C
SS
= 47nF
--
--
--
--
Typ
1
0
--
--
--
1.5
90
70
--
10
4
400
5
5
4.7
150
30
Max
--
--
--
0.4
2
2.5
--
--
0.4
--
4.2
--
--
--
--
--
--
Unit
μA
V
MHz
μA
%
%
V
nA
V
mV
V
%
ms
°C
°C
SYNC Frequency Range
SYNC Input Current
Power Good Rising Threshold
Power Good Falling Threshold
Power Good Sink Current
Capability
Power Good Leakage Current
Under Voltage Lockout
Threshold
Under Voltage Lockout
Threshold Hysteresis
VCC Regulator
VCC Load Regulation
Soft-Start Period
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
Note 1.
Stresses beyond those listed
“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.
θ
JA
is measured at T
A
= 25°C on a high effective thermal conductivity four-layer test board per JEDEC 51-7.
θ
JC
is
measured at the exposed pad of the package.
Note 3.
Devices are ESD sensitive. Handling precaution is recommended.
Note 4.
The device is not guaranteed to function outside its operating conditions.
Copyright
©
2012 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
6
DS7263E-00
November 2012
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
