RT7271A
Parameter
Thermal Shutdown
Symbol
Test Conditions
Min
--
Typ
160
10
Max
--
Unit
°C
°C
kHz
%
T
T
SD
Thermal Shutdown Hysteresis
Switching Frequency
--
--
SD_HYS
f
425
--
500
120
50
575
--
SW
OVP Threshold
Under Voltage Threshold
Soft-Start Time
V
--
--
%
UVP
--
1.5
90
--
ms
%
Power Good Threshold Rising
Power Good Threshold Falling
--
--
--
85
--
%
Power Good Output High
Leakage Current
V
= V
, V = 5.5V
PGOOD
--
--
30
--
--
nA
V
FB
REF
Power Good Output Low
I
= 2mA
0.3
PGOOD
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. θJA is measured at TA = 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 ]
