RT7266
Parameter
Thermal Shutdown
Symbol
Test Conditions
Min
--
--
Typ
150
20
Max
--
--
Unit
Thermal Shutdown Threshold T
SD
Thermal Shutdown
ΔT
SD
Hysteresis
On-Time Timer Control
On-Time
Minimum On-Time
Minimum Off-Time
Soft-Start
SS Charge Current
SS Discharge Current
UVLO
UVLO Threshold
Hysteresis
VIN Rising to Wake up V
PVCC
3.55
--
3.85
0.3
4.15
--
V
t
ON
t
ON(MIN)
t
OFF(MIN)
V
SS
= 0V
V
SS
= 0.5V
V
IN
= 12V, V
OUT
= 1.05V
°C
--
--
--
1.4
0.05
145
60
230
2
0.1
--
--
--
2.6
--
ns
ns
ns
μA
mA
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.
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.
DS7266-02
September 2012
www.richtek.com
5
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
