RT7271A
Parameter
Thermal Shutdown
Thermal Shutdown Hysteresis
Switching Frequency
OVP Threshold
Under Voltage Threshold
Soft-Start Time
Power Good Threshold Rising
Power Good Threshold Falling
Power Good Output High
Leakage Current
Power Good Output Low
V
FB
= V
REF
, V
PGOOD
= 5.5V
I
PGOOD
= 2mA
V
UVP
Symbol
T
SD
T
SD_HYS
f
SW
Test Conditions
Min
--
--
425
--
--
--
--
--
--
--
Typ
160
10
500
120
50
1.5
90
85
30
--
Max
--
--
575
--
--
--
--
--
--
0.3
Unit
°C
°C
kHz
%
%
ms
%
%
nA
V
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.
Note 3.
Devices are ESD sensitive. Handling precaution is recommended.
Note 4.
The device is not guaranteed to function outside its operating conditions.
Copyright
©
2013 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS7271A-00 February 2013
www.richtek.com
5
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
