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Wide Vin 65V Non-synchronous Boost/Flyback/SEPIC Controller, SCT81621 Replace LM3481.
FEATURES

? Wide Input Voltage Range: 2.92V-60V

? Low Shutdown Current 3.9uA

? Low Quiescent Operating Current: 470uA

? +/- 1.5% Feedback Reference Voltage

? Adjustable Switching Frequency: 100KHz to 2.2MHz

? Integrated Frequency Dither for EMI Mitigation

? External Frequency Synchronic

? External Compensation

? Pulse Skipping Mode

? Supports additional Slope Compensation

? 14ms Internal Soft-start Time

? Integrated Protection Feature

   –Constant Peak-Current Protection Threshold

   Over Input Voltage

  –Output Overvoltage Protection

  Adjustable Under-voltage Lockout

  –Hiccup Over Load Protection

  –Thermal Shutdown Protection:165°C

? MSOP-10L(3mm*3mm)



PIN CONFIGUTION
優勢替代
LM3481 LM3481.pdf

No.13378

FEATURES

? LM3481QMM are Automotive-Grade Products

  That are AEC-Q100 Grade 1 Qualified (–40°C to
  +125°C Operating Junction Temperature)
? 10-Lead VSSOP Package
? Internal Push-Pull Driver With 1-A Peak Current
  Capability
? Current Limit and Thermal Shutdown
? Frequency Compensation Optimized With a
  Capacitor and a Resistor
? Internal Softstart
? Current Mode Operation
? Adjustable Undervoltage Lockout With Hysteresis
? Pulse Skipping at Light Loads
? Key Specifications
  – Wide Supply Voltage Range of 2.97 V to 48 V
  – 100-kHz to 1-MHz Adjustable and
  Synchronizable Clock Frequency
  – ±1.5% (Over Temperature) Internal Reference
  – 10-μA Shutdown Current (Over Temperature)
? Create a Custom Design Using the LM3481 with
  the WEBENCH Power Designer
PIN CONFIGUTION
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