RT7237B

5

DS7237B-01

September 2012

www.richtek.com

©

Copyright

2012 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Logic-High

2

--

18

EN Input Threshold

Voltage

Logic-Low

--

--

0.4

V

Input Under Voltage Lockout

Threshold

3.8

4.2

4.5

V

Input Under Voltage Lockout

Hysteresis

--

320

--

mV

Soft-Start Current

--

6

--

μA

Soft-Start Period

--

13.5

--

ms

Thermal Shutdown

--

150

--

°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.

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.