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SC194B - Selectable 3.6V/3.3V/3.0V/2.5V 1A Synchronous Buck Converter

Description

The SC194B is a synchronous step-down converter with integrated power devices.

Four selectable output voltages suitable for portable device interface, memory function blocks, and 5V to 3.3V voltage conversion are available.

Features

  • ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ Up to 95% efficiency PSAVE operation to maximize efficiency Output current.
  • 1A Input range.
  • 2.7V to 5.5V Four selectable output voltages Quiescent current.
  • 17μA in PSAVE Dynamic voltage positioning capability Fixed 1MHz frequency or 750kHz to 1.25MHz synchronized operation Current mode operation for excellent line and load transient response 100% duty cycle in dropout Soft-start Over-temperature and short-circuit protection Lead-free package.

📥 Download Datasheet

Datasheet preview – SC194B

Datasheet Details

Part number SC194B
Manufacturer Semtech
File Size 581.18 KB
Description Selectable 3.6V/3.3V/3.0V/2.5V 1A Synchronous Buck Converter
Datasheet download datasheet SC194B Datasheet
Additional preview pages of the SC194B datasheet.

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Full PDF Text Transcription

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Selectable 3.6V/3.3V/3.0V/2.5V www.DataSheet4U.com 1A Synchronous Buck Converter POWER MANAGEMENT Description The SC194B is a synchronous step-down converter with integrated power devices. Four selectable output voltages suitable for portable device interface, memory function blocks, and 5V to 3.3V voltage conversion are available. Automatic selection of Power Save Mode (PSAVE) is supported which enhances efficiency. A 100% duty cycle mode allows operation for input voltages close to the required output voltage. The need for external components is minimized by providing internal feedback compensation, and allowing selection of the required output voltage by hard wiring VID code inputs. The maximum current rating of the internal MOSFET switches allows a DC output current of 1A.
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