DESCRIPTION:

The ATDC2934 is a current mode PWM step-down DC/DC converter with a 0.9Ω Internal Power MOSFET. With its wide input range of 5V to 42V, the ATDC2934 can regulate a wide variety of power sources. The output voltage of the ATDC2934 can be down to 0.8V, and the output current can be up to 600mA. The current mode control provides fast transient response and cycle-by-cycle over current protection. The shutdown current is 0.6μA typical. Adjustable soft start prevents inrush current at turn on. The ATDC2934 features an over temperature shutdown protection.
The 1.2 MHz operating frequency allows small inductor and ceramic capacitors to be used, providing a compact solution. Current mode control provides fast and stable line and load transient performance. The ATDC2934 allows the use of small external components while still being able to have low output voltage ripple. A soft-start function can be implemented using the enable pin and by connecting an external RC circuit allowing the user to tailor the soft-start time to a specific application. The ATDC2934 is in a thermally enhanced SOT-23-6 package which comes with a heat sink solder pad underneath, and it is RoHS compliant and 100% lead (Pb) free.