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SC2440 - 2.5 MHz Dual Switching Regulator

General Description

The SC2440 is an adjustable frequency dual currentmode switching regulator with 2A integrated switches.

Its high frequency operation allows the use of small inductors and capacitors, resulting in very compact power supplies.

Key Features

  • u Up to 2.5 MHz/Channel Programmable Switching u u u u u u u u u u u u u u u u u Frequency Fixed Frequency Current-mode Control Wide Input Voltage Range 2.8V to 20V Out of Phase Switching Reduces Ripple Cycle-by-cycle Current-limiting Independent Shutdown/soft-start Pins Independent Hiccup Overload Protection Independent Power-Good Indicators Two 2A Integrated Switches External Synchronization Thermal Shutdown Thermally Enhanced 16-pin TSSOP Package XDSL and Cable Modems Set-up Boxes Point of Lo.

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Datasheet Details

Part number SC2440
Manufacturer SEMTECH
File Size 700.13 KB
Description 2.5 MHz Dual Switching Regulator
Datasheet download datasheet SC2440 Datasheet

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Other Datasheets by SEMTECH

Part Number Description
SC2441 Very Low Input Voltage 2-Phase Synchronous Step-down Controllers
SC2441A 1.8V to 20V Input 2-Phase Synchronous Step-down Controllers
SC2442 High Performance Wide Input Range Dual Synchronous Buck Controller
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SC2443 Dual-Phase Single or Two Output Synchronous Step-Down Controller

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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2.5 MHz Dual Switching Regulator with Integrated 2A Switches www.DataSheet4U.com SC2440 POWER MANAGEMENT Description The SC2440 is an adjustable frequency dual currentmode switching regulator with 2A integrated switches. Its high frequency operation allows the use of small inductors and capacitors, resulting in very compact power supplies. The SC2440 is suitable for next generation XDSL modems requiring operating frequencies in excess of 1.5 MHz. The two channels operate at 180° out of phase for reduced input voltage ripples. Separate soft start/ shutdown pins allow independent control and output sequencing for latch-up prevention. The SC2440 can also be externally synchronized up to 2.5 MHz per channel.