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FAN5026 - Dual DDR/Dual-output PWM Controller

General Description

The FAN5026 PWM controller provides high efficiency and regulation for two output voltages adjustable in the range of 0.9V to 5.5V required to power I/O, chip-sets, and memory banks in high-performance computers, set-top boxes, and VGA cards.

Key Features

  • Highly Flexible, Dual Synchronous Switching PWM Controller that Includes Modes for: - DDR Mode with In-phase Operation for Reduced Channel Interference - 90° Phase-shifted, Two-stage DDR Mode for Reduced Input Ripple - Dual Independent Regulators, 180° Phase Shifted Complete DDR Memory Power Solution - VTT Tracks VDDQ/2 - VDDQ/2 Buffered Reference Output Lossless Current Sensing on Low-Side MOSFET or Precision Over-Current Using Sense Resistor VCC Under-Voltage Lockout Wide Input Range: 3V to 16.

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Full PDF Text Transcription for FAN5026 (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for FAN5026. For precise diagrams, and layout, please refer to the original PDF.

FAN5026 — Dual DDR / Dual-Output PWM Controller March 2011 FAN5026 Dual DDR / Dual-Output PWM Controller Features Highly Flexible, Dual Synchronous Switching PWM Controll...

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ller Features Highly Flexible, Dual Synchronous Switching PWM Controller that Includes Modes for: - DDR Mode with In-phase Operation for Reduced Channel Interference - 90° Phase-shifted, Two-stage DDR Mode for Reduced Input Ripple - Dual Independent Regulators, 180° Phase Shifted Complete DDR Memory Power Solution - VTT Tracks VDDQ/2 - VDDQ/2 Buffered Reference Output Lossless Current Sensing on Low-Side MOSFET or Precision Over-Current Using Sense Resistor VCC Under-Voltage Lockout Wide Input Range: 3V to 16V Excellent Dynamic Response with Voltage Feedforward and Average Current-Mode Control Power-Good Signal Supports DD

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