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Linear Technology Corp. 40V, 2A Buck-Boost Converter Tony Armstrong Director of Product Marketing, Power Products. Why the Need for the LTC3115-1?.

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Linear technology corp

Linear Technology Corp.

40V, 2A Buck-Boost Converter

Tony ArmstrongDirector of Product Marketing, Power Products

Why the need for the ltc3115 1
Why the Need for the LTC3115-1?

  • Regulated Output with Input Above, Below or Equal to VOUT Enables Continual Operation Even with Wide Input Fluctuations: Example: Automotive Application with Input Ranging from 3.3V in Cold-Crank to 36V Transient During Load-Dump Scenario, when Output Must Be a Continuous 5V

  • Operation from 2.7V to 40V is Ideal for Wide Range of Input Power Sources: From Single/dual/triple-Cell Li-Ion, to USB, FireWire, Wall Adapter or Automotive Inputs

  • When Well-Regulated Output is Required with a Discharging Energy Storage Device, i.e. Battery or SuperCapacitor

  • For 5V Output, LTC3115 can Deliver up to 2A when VIN>6V, and 1A when VIN>3.6

  • Up to 95% Efficiency Maximizes Battery Run-Time and Minimizes Thermal Constraints

  • Very Low IQ (< 50uA) Preserves Battery Life During Standby/Light Load Operation

  • Very Simple, Compact Footprint

LTC3115-1: What Is It?

  • 2A Monolithic Synchronous Buck-Boost DC/DC Converter

  • Regulated Output with Input Voltage Above, Below

    or Equal to the Output Voltage

  • Wide VIN Range: 2.7V to 40V

  • Wide VOUT Range: 2.7V to 40V

  • Low Noise Buck-Boost Architecture (<5mVPK-PK in PWM Mode)

Ltc3115 1 key features
LTC3115-1: Key Features

  • Wide VIN Range: 2.7V to 40V

  • Wide VOUT Range: 2.7V to 40V

  • 1A Output Current for VIN ≥ 3.6V, VOUT = 5V

  • 2A Output Current in Step-Down Operation for VIN ≥ 6V

  • Programmable Frequency: 100kHz to 2MHz

  • Supports Synchronization with an External Clock

  • Up to 95% Efficiency

  • 50μA Burst ModeR Quiescent Current

  • Ultralow Noise Buck-Boost PWM

  • Internal Soft-Start

  • 3μA Supply Current in Shutdown

  • Programmable Input Undervoltage Lockout

  • Small 4mm × 5mm × 0.75mm DFN Package or Thermally Enhanced 20-Lead TSSOP Package

Ltc3115 1 release schedule
LTC3115-1: Release Schedule DC/DC Converters

  • Data Sheet: Now

  • Samples: Now

  • Production Release: November 2011