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

Description

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.

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.

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Datasheet Details

Part number SC2446A
Manufacturer SEMTECH
File Size 567.09 KB
Description Dual-Phase Single or Two Output Synchronous Step-Down Controller
Datasheet download datasheet SC2446A Datasheet

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Full PDF Text Transcription

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Dual-Phase, Single or Dual Output www.DataSheet4U.com Synchronous Step-Down Controller POWER MANAGEMENT Description 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 the SC2446A suitable for generating both VDDQ and the tracking VTT for DDR applications. The SC2446A employs fixed frequency peak currentmode control for the ease of frequency compensation and fast transient response.
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