IR3629

 Vcc Supply Voltage ............ -0.5V to 16V
 Vc Supply Voltage .............-0.5V to 30V
 PGood ................... -0.5V to 16V
 Fb, Comp, SS ...............-0.3V to 3.5V
 OCset ...................... 10mA
 AGnd to PGnd ..............-0.3V to +0.3V
 Storage Temperature Range ...... -65To 150
 Operating Junction Temperature Range ... -40To 150
 ESD Classification ......... JEDEC, JESD22-A114
 Moisture Sensitivity Level .... JEDEC Level 2 @ 260

Caution: Stresses beyond those listed under "Absolute Maximum Rating" 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 for extended periods may affect device reliability.

The IR3629 is a PWM controller designed for high performance synchronous Buck DC/DC applications. The IR3629 drives a pair of external N-MOSFETs using a fixed 600kHz (300kHz "A version") switching frequency allowing the use of small external components. The output voltage of the IR3629 can be precisely regulated using the internal 0.6V reference voltage for low voltage applications. Protection such as Pre-Bias startup, hiccup current limit and thermal shutdown provide the required system level security in the event of fault conditions.