Synchronous Buck PWM And Linear Controllers

The APW7058 integrates one synchronous-rectified Buck PWM Controller and one linear controller to provide two regulated voltages for graphics cards and other embed- ded processor applications. The PWM Controller which drives dual N-Channel MOSFETs uses fixed 600kHz frequency, voltage-mode PWM control and integrates power-on-reset(POR), built-in soft-start, output under- voltage monitoring and shutdown functions into a single chip. The linear controller which drives a N-channel MOSFET bypass Transistor allows users to optimize the transient response by external components. The POR circuit with hysteresis monitors both 5VCC and 12VCC supply voltages to start up/shutdown the IC at power-on/ off. An internal 0.8V temperature-compensated reference is designed to meet the low output voltage requirement for further applications. The built-in soft-start function sets the soft-start interval to prevent the output voltages from overshoot as well as limiting the input currents. The un- der-voltage protections monitor the voltages at FB and FB2 for short-circuit protection. The under-voltage pro- tections cycle the soft-start function until 3 times of UVP events are happened. Pulling and holding the FB2 pin above 1.28V to disable the both controllers. By Anpec Electronics Corporation
APW7058 's PackagesAPW7058 's pdf datasheet

APW7058 Pinout, Pinouts
APW7058 pinout,Pin out
This is one package pinout of APW7058,If you need more pinouts please download APW7058's pdf datasheet.

APW7058 Application circuits
APW7058 circuits
This is one application circuit of APW7058,If you need more circuits,please download APW7058's pdf datasheet.

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