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LTC3129 Datasheet

LTC3129 Datasheet

15V, 200mA Synchronous Buck-Boost DC/DC Converter with 1.3μA Quiescent Current
Part No.: LTC3129
Page: 30 Pages
Size: 1432 KB
Manufacturer: Linear Technology
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Views: 1
Update Time: 2024-01-23 15:16:43
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LTC3129 Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
LTC3129EUD#PBF Tube 121 LGDR 1 16 -40°C ~125°C 16-Lead (3mm × 3mm) Plastic QFN  
LTC3129EUD#TRPBF Reel 2500 LGDR 1 16 -40°C ~125°C 16-Lead (3mm × 3mm) Plastic QFN  
LTC3129EUD#TRMPBF Reel 500 LGDR 1 16 -40°C ~125°C 16-Lead (3mm × 3mm) Plastic QFN  
LTC3129IUD#PBF Tube 121 LGDR 1 16 -40°C ~125°C 16-Lead (3mm × 3mm) Plastic QFN  
LTC3129IUD#TRPBF Reel 2500 LGDR 1 16 -40°C ~125°C 16-Lead (3mm × 3mm) Plastic QFN  
LTC3129IUD#TRMPBF Reel 500 LGDR 1 16 -40°C ~125°C 16-Lead (3mm × 3mm) Plastic QFN  
LTC3129EMSE#PBF Tube 37 3129 1 16 -40°C ~125°C 16-Lead Plastic MSOP  
LTC3129EMSE#TRPBF Reel 2500 3129 1 16 -40°C ~125°C 16-Lead Plastic MSOP  
LTC3129EMSE#TRMPBF Reel 500 3129 1 16 -40°C ~125°C 16-Lead Plastic MSOP  
LTC3129IMSE#PBF Tube 37 3129 1 16 -40°C ~125°C 16-Lead Plastic MSOP  
LTC3129IMSE#TRPBF Reel 2500 3129 1 16 -40°C ~125°C 16-Lead Plastic MSOP  
LTC3129IMSE#TRMPBF Reel 500 3129 1 16 -40°C ~125°C 16-Lead Plastic MSOP  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

LTC3129 Datasheet(PDF)

LTC3129 Datasheet(Picture)

LTC3129 Features

  • Regulates VOUT Above, Below or Equal to VIN
  • Wide VIN Range: 2.42V to 15V, 1.92V to 15V After Start-Up (Bootstrapped)
  • Wide VOUT Range: 1.4V to 15.75V
  • 200mA Output Current in Buck Mode
  • Single Inductor
  • 1.3μA Quiescent Current
  • Programmable Maximum Power Point Control
  • 1.2MHz Ultralow Noise PWM
  • Current Mode Control
  • Pin Selectable Burst Mode® Operation
  • Up to 95% Efficiency
  • Accurate RUN Pin Threshold
  • Power Good Indicator
  • 10nA Shutdown Current
  • Thermally Enhanced 3mm × 3mm QFN and 16-Lead MSOP Packages

LTC3129 Applications

  • Industrial Wireless Sensor Nodes
  • Post-Regulator for Harvested Energy
  • Solar Panel Post-Regulator/Charger
  • Intrinsically Safe Power Supplies
  • Wireless Microphones
  • Avionics-Grade Wireless Headsets

LTC3129 Description

The LTC3129 is a high efficiency, 200mA buck-boost DC/DC converter with a wide VIN and VOUT range. It includes an accurate RUN pin threshold to allow predictable regulator turn-on and a maximum power point control (MPPC) capability that ensures maximum power extraction from non-ideal power sources such as photovoltaic panels.

The LTC3129 employs an ultralow noise, 1.2MHz PWM switching architecture that minimizes solution footprint by allowing the use of tiny, low profile inductors and ceramic capacitors. Built-in loop compensation and soft-start simplify the design. For high efficiency operation at light loads, automatic Burst Mode operation can be selected, reducing the quiescent current to just 1.3μA.

Additional features include a power good output, less than 10nA of shutdown current and thermal shutdown.

The LTC3129 is available in thermally enhanced 3mm × 3mm QFN and 16-lead MSOP packages.

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