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SC2446A
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SC2446A Dual-Phase Single or Two Output Synchronous Step-Down Controller

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SC2446A Dual-Phase Single or Two Output Synchronous Step-Down Controller

The SC2446A is a high-frequency dual synchronous stepdown switching power supply controller. It provides outof-phase output gate signals. The SC2446A operates in synchronous continuous-conduction mode. Both phases are capable of maintaining regulation with sourcing or sinking load currents, making t.

Features

‹ 2-Phase synchronous continuous conduction mode ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ for high efficiency step-down converters Out of phase operation for low input current ripples Output source and sink currents Fixed frequency peak current-mode control 50mV/-75mV maximum current sense voltage Inductive current-sensing for low-cost applications Optional resistor current-sensing for precise current-limit Dual outputs or 2-phase single output operation Excellent current sharing between individual phases Wide input voltage range: 4.7V to 16V Individual soft-start, overload shutdown and enable Duty c.

SC2446A SC2446A SC2446A
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