RT8011/A
7
DS8011/A-02 March 2011 www.richtek.com
Note 1. Stresses listed as the above “Absolute Maximum Ratings” may cause permanent damage to the device. These are for
stress ratings. 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 for extended
periods may remain possibility to affect device reliability.
Note 2. θ
JA
is measured in the natural convection at T
A
= 25°C on a effective single layer thermal conductivity test board of
JEDEC thermal measurement standard.
Note 3. Devices are ESD sensitive. Handling precaution recommended.
Note 4. The device is not guaranteed to function outside its operating conditions.
Parameter Symbol Test Conditions Min Typ Max Unit
R
OSC
= 332k 0.8 1 1.2 MHz
Switching Frequency
Switching Frequency 0.3 -- 4 MHz
Sync Frequency Range 0.3 -- 4 MHz
Switch On Resistance, High R
PMOS
I
SW
= 0.5A -- 110 160 mΩ
Switch On Resistance, Low R
NMOS
I
SW
= 0.5A -- 110 170 mΩ
Peak Current Limit I
LIM
2.2 3.2 -- A
V
DD
Rising -- 2.4 -- V
Under Voltage Lockout
Threshold
V
DD
Falling -- 2.3 -- V
Shutdown Threshold -- V
IN
− 0.7 V
IN
− 0.4 V
