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LM2717-ADJ
Dual Step-Down DC/DC Converter

热度 34
当前位置: 艾金森

The LM2717-ADJ is composed of two PWM DC/DC buck (step-down) converters. Both convertersare used to generate an adjustable output voltage as low as 1.267V. Both also feature lowRDSON (0.16?) internal switches for maximum efficiency. Operating frequencycan be adjusted anywhere between 300kHz and 600kHz allowing the use of small external components.External soft-start pins for each converter enables the user to tailor the soft-start times to aspecific application. Each converter may also be shut down independently with its own shutdown pin.The LM2717-ADJ is available in a low profile 24-lead TSSOP package ensuring a low profile overallsolution.


  • Adjustable Buck Converterwith a 2.2A, 0.16Ω, Internal Switch (Buck 1)
  • Adjustable Buck Converter with a3.2A, 0.16Ω, Internal Switch (Buck 2)
  • Operating Input Voltage Range of 4V to20V
  • Input Undervoltage Protection
  • 300kHz to 600kHz PinAdjustable Operating Frequency
  • Over TemperatureProtection
  • Small 24-Lead TSSOP Package

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LM2717-ADJ
Vin(Min)(V)4
Vin(Max)(V)20
Vout(Min)(V)3.3
Vout(Max)(V)3.3
Iout(Max)(A)2.2
Regulated Outputs(#)2
Switching Frequency(Min)(kHz)300
Switching Frequency(Max)(kHz)300
Iq(Typ)(mA)6
Features Multiple Outputs
Control Mode Constant on-time (COT)
Duty Cycle(Max)(%)89
Operating Temperature Range(C)-40 to 125
Rating Catalog
Package Group TSSOP

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