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LX1672 - Multiple Output LoadSHARE PWM

Description

KEY

Features

  • WWW . Microsemi . C OM The LX1672 is a highly integrated power supply controller IC featuring www. DataSheet4U. net two PWM switching regulator stages with an additional onboard linear regulator driver. The two constant frequency voltagemode PWM phases can be easily configured as a single Bi-Phase high current output, two independently regulated outputs, or as a DDR memory I/O supply with a tracking DDR termination voltage supply. Power loss and noise, due to the ESR of the input capacitors, are.

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Full PDF Text Transcription

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LX1672 TM ® Multiple Output LoadSHARE™ PWM P RELIMINARY D ATA S HEET DESCRIPTION KEY FEATURES WWW . Microsemi . C OM The LX1672 is a highly integrated power supply controller IC featuring www.DataSheet4U.net two PWM switching regulator stages with an additional onboard linear regulator driver. The two constant frequency voltagemode PWM phases can be easily configured as a single Bi-Phase high current output, two independently regulated outputs, or as a DDR memory I/O supply with a tracking DDR termination voltage supply. Power loss and noise, due to the ESR of the input capacitors, are minimized by operating each PWM output 180° out of phase. This architecture also minimizes capacitor requirements while maximizing regulator response.
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