Synchronous Buck PWM And Linear Controller With 0.8V Reference Out Voltage

The APW7068 integrates synchronous buck PWM, linear controller, and 0.8V Reference Out Voltage, as well as the monitoring and protection functions into a single package. The fixed 300kHz switching frequency syn- chronous PWM Controller drives dual N-channel MOSFETs which provides one controlled power output with over-voltage and over-current protections. Linear controller drives an external N-Channel MOSFET with under-voltage protection. The APW7068 provides excellent regulation for output load variation. An internal 0.8V temperature-compensated reference voltage is designed to meet the requirement of low output voltage applications. The APW7068 with excellent protection functions: POR, OCP, OVP and UVP. The Power-On-Reset (POR) circuit CAN monitor V supply voltage exceeds its threshold CC12 voltage while the controller is running, and a built-in digital soft-start provides both outputs with controlled rising voltage. The Over-Current Protection (OCP) monitors the output current by using the voltage drop across the lower MOSFET s R , comparing with the voltage of OCSET DS(ON) pin, V The maximum V voltage is limited to the OCSET. OCSET internal default value 0.25V. In addition, when OCSET pin is floating (no R resistor), the over current thresh- OCSET old will also be internal default value, 0.25V. When the output current reaches the trip point, the controller will shutdown the IC directly, and latch the converter,s output. The Under-Voltage Protection (UVP) monitors the volt- age of FBL pin for short-circuit protection. When the V FBL is less than 50% of V , the controller will shutdown the REF IC directly. The Over-Voltage Protection (OVP) monitors the voltage of FB. When the V is over 135% of V , the FB REF controller will make Low-side Gate signal fully turn on until the fault events are removed. By Anpec Electronics Corporation
APW7068 's PackagesAPW7068 's pdf datasheet

APW7068 Pinout, Pinouts
APW7068 pinout,Pin out
This is one package pinout of APW7068,If you need more pinouts please download APW7068's pdf datasheet.

APW7068 Application circuits
APW7068 circuits
This is one application circuit of APW7068,If you need more circuits,please download APW7068's pdf datasheet.

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