RT7262A
Parameter
Power Good Leakage Current
Short Circuit Frequency
Maximum Duty Cycle
Minimum On Time
Feedback Voltage
Feedback Current
EN Voltage
EN Current
Under Voltage Lockout Threshold
Under Voltage Lockout Threshold
Hysteresis
VCC Regulator
VCC Load Regulation
Soft-Start Period
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
t
SS
T
SD
ΔT
SD
Logic-High
Logic-Low
D
MAX
t
ON
V
FB
I
FB
V
IH
V
IL
I
EN
V
UVLO
ΔV
UVLO
V
EN
= 2V
V
EN
= 0V
V
IN
Rising
4.5V
≤
V
IN
≤
21V
V
FB
= 0V
V
FB
= 0.8V
Symbol
Test Conditions
Min
--
--
--
--
0.796
--
2
--
--
--
3.8
--
--
I
CC
= 5mA
C
SS
= 47nF
--
--
--
--
Typ
10
150
90
100
0.808
10
--
--
1
0
4
400
5
5
4.7
150
30
Max
--
--
--
--
0.82
50
5.5
0.4
--
--
4.2
--
--
--
--
--
--
Unit
nA
kHz
%
ns
V
nA
V
μA
V
mV
V
%
ms
°C
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
DS7262A-01
September 2012
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
