APW7060 SOP14

توضیحات

The APW7060 integrates a synchronous buck PWM controller and a linear controller to provide two regulated voltages in a single

package.

The PWM controller drives external N-channel MOSFETs and operates at a fixed 600kHz frequency. When the input supply

drops close to the output, the upper MOSFET remains on, achieving 100% duty cycle. Internal loop compensation is optimized for fast

transient response, eliminating external compensation network. The linear controller drives an external N-channel MOSFET to form a

linear regulator. The internal 0.8V reference makes this part suitable for a wide variety of low voltage applications. The APW7060 has

an undervoltage lockout circuitry to ensures that both the 5VCC and 12VCC must be present before its internal circuitry is power up.

Soft start is internally set to 2ms and will bring both outputs into regulation in a controlled manner. When either output goes into

short, soft start will be initiated. If the short condition still remains after three cycles, both regulators will be shut down.

To restartboth regulators, recycle the voltage or 12VCC pin or momentarily pull the FB2 pin above 1.28V. The APW7060 can be shutdown by