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LTC3806 - Synchronous Flyback DC/DC Controller

Description

Consult LTC Marketing for parts specified with wider operating temperature ranges.

Consult LTC Marketing for information on non-standard lead based finish parts.

Features

  • High Efficiency at Full Load.
  • Better Cross Regulation Than Nonsynchronous Converters (Multiple Outputs).
  • Soft-Start Minimizes Inrush Current.
  • Current Mode Control Provides Excellent Transient Response.
  • High Maximum Duty Cycle: 89% Typical.
  • ±2% Programmable Undervoltage Lockout Threshold.
  • ±1% Internal Voltage Reference.
  • Micropower Start-Up.
  • Constant Frequency Operation (Never Audible).
  • 3mm × 4mm 12-Pin DFN Package U.

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Full PDF Text Transcription

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U U LTC3806 Synchronous Flyback DC/DC Controller FEATURES ■ High Efficiency at Full Load ■ Better Cross Regulation Than Nonsynchronous Converters (Multiple Outputs) ■ Soft-Start Minimizes Inrush Current ■ Current Mode Control Provides Excellent Transient Response ■ High Maximum Duty Cycle: 89% Typical ■ ±2% Programmable Undervoltage Lockout Threshold ■ ±1% Internal Voltage Reference ■ Micropower Start-Up ■ Constant Frequency Operation (Never Audible) ■ 3mm × 4mm 12-Pin DFN Package U APPLICATIO S ■ 48V Telecom Supplies ■ 12V/42V Automotive ■ 24V Industrial ■ VoIP Phone ■ Power Over Ethernet DESCRIPTIO The LTC®3806 is a current mode synchronous flyback controller that drives N-channel power MOSFETs and requires very few external components.
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