LTC3115-1
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LTC3115-1

40V, 2A Synchronous Buck-Boost DC/DC Converter

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LTspice LTC3115-1 Demo Circuit - Wide Input Voltage, High Efficiency, Low Noise 5V Regulator (2.7-40V to 5V @ 2A) Download 3.00KB LTspice LTC3115-1 Demo Circuit - 12V 1MHz Buck-Boost Regulator with Undervoltage Lockout (10- 40V to 12V @ 1.4A) Download 3.00KB LTspice LTC3115-1 - Buck-Boost Regulators Download 2.85 KB
Part Models 20
1ku List Price Starting From $6.37
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
  • Synchronizable Up to 2MHz with an External Clock
  • Up to 95% Efficiency
  • 30µA No-Load Quiescent Current in Burst Mode® Operation
  • Ultralow Noise Buck-Boost PWM
  • Internal Soft-Start
  • 3µA Supply Current in Shutdown
  • Programmable Input Undervoltage Lockout
  • Small 4mm × 5mm × 0.75mm DFN Package
  • Thermally Enhanced 20-Lead TSSOP Package
  • AEC-Q100 Qualified for Automotive Applications
Additional Details
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The LTC3115-1 is a high voltage monolithic synchronous buck-boost DC/DC converter. Its wide 2.7V to 40V input and output voltage ranges make it well suited to a wide variety of automotive and industrial applications. A proprietary low noise switching algorithm optimizes efficiency with input voltages that are above, below or even equal to the output voltage and ensures seamless transitions between operational modes.

Programmable frequency PWM mode operation provides low noise, high efficiency operation and the ability to synchronize switching to an external clock. Switching frequencies up to 2MHz are supported to allow use of small value inductors for miniaturization of the application circuit. Pin selectable Burst Mode operation reduces standby current and improves light load efficiency which, combined with a 3µA shutdown current, make the LTC3115-1 ideally suited for battery-powered applications. Additional features include output disconnect in shutdown, short-circuit protection and internal soft-start. The LTC3115-1 is available in thermally enhanced 16-lead 4mm × 5mm × 0.75mm DFN and 20-lead TSSOP packages.

Features
LTC3115-1 -
LTC3115-2 Optimized for applications subject to fast (<1ms) input voltage transients

APPLICATIONS

  • 24V/28V Industrial Applications
  • Automotive Power Systems
  • Telecom, Servers and Networking Equipment
  • FireWire Regulator
  • Multiple Power Source Supplies
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file View Data Sheet (Rev.E)
Documentation View All Documentation
LTspice LTC3115-1 Demo Circuit - Wide Input Voltage, High Efficiency, Low Noise 5V Regulator (2.7-40V to 5V @ 2A) Download 3.00KB LTspice LTC3115-1 Demo Circuit - 12V 1MHz Buck-Boost Regulator with Undervoltage Lockout (10- 40V to 12V @ 1.4A) Download 3.00KB LTspice LTC3115-1 - Buck-Boost Regulators Download 2.85 KB
Part Models 20
1ku List Price Starting From $6.37
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LTC3115-1

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UPDATED 04/07/2023
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LTC3115-1: 40V, 2A Synchronous Buck-Boost DC/DC Converter Data Sheet (Rev.E)

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LTC3115-1: 40V、2A 同期整流式昇降圧DC/DCコンバータ データシート

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Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

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Jul 31, 2020

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Notification of Wafer Fab Location Change for 0.6µm BICMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan)

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Moisture Sensitivity Level Rating Change of LTC3114-1, LTC3115-1, LTC3115-2 with #W for LFCSP Package.

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Notification of Wafer Fab Location Change for 0.6µm BICMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan)

LTC3115EDHD-1#PBF

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Qualification Results Summary

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Apr 12, 2022

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Moisture Sensitivity Level Rating Change of LTC3114-1, LTC3115-1, LTC3115-2 with #W for LFCSP Package.

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Software & Part Ecosystem

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Evaluation Kits 2

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AD-JUPITER-EBZ

Software-Defined Radio

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AD-JUPITER-EBZ

Software-Defined Radio

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AD-JUPITER-EBZ
Software-Defined Radio

Features and Benefits

  • RF/SDR
    • ADRV9002 transceiver
    • 2 x receiver, 2 x transmitter
    • LO frequency range 30 MHz to 6 GHz
    • 12 kHz to 40 MHz frequency bandwidth
    • Sampling rate 12 kSPS to 61.44 MSPS
  • External Device Clock Input
  • External MCS Input
  • RF Front-end
  • Processing System
    • Zynq UltraScale+ MPSoC XCZU3EG
      • ARM Cortex-A53 1.5 GHz
      • ARM Cortex-R5 500 MHz
      • Mali-400 MP2 graphic processor
      • Programmable logic 154 k
    • DDR4 – 2 GB (x32)
    • Boot source
      • SD card 3.0
      • Flash memory 128 MB
    • User Interfaces
      • USB 3.1 Gen 1 – Type C
        • Upstream Facing Port (UFP)
        • Downstream Facing Port (DFP)
        • USB 2.0 compatible
    • Ethernet 1000BASE-T RGMII
    • Display Port v1.2 (2 lanes, 5.4 Gbps)
    • SATA 3
    • USB (micro) debug interface
    • 16 GPIOs (3V3 LVCMOS)
  • Power Sources
    • USB Type-C (power only)
      • Power Sink 5V, 9V/3A
    • USB Type-C (data)
      • Power Sink 5V/3A
      • Power Source 5V/0.9 A
    • 802.3at POE compliant, 25.5 W Type2 (POE+)
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Product Detail

The AD-JUPITER-EBZ is a versatile software-defined platform based on Analog Devices ADRV9002 and Xilinx Zynq UltraScale+ MPSoC. The ADRV9002 is a new generation RF transceiver that has dual-channel transmitters, dual-channel receivers covering a frequency range of 30 MHz to 6 GHz. This device has a high-quality RF linearity performance and a set of advanced features like fast profiles switching, flexible power vs. performance configuration, fast frequency hopping, multi-chip synchronization, and digital pre-distortion (DPD) for narrow and wide band waveform.

The evaluation platform includes XCZU3EG processing device that has a wide range of interfaces, making the system capable of local processing or streaming to a remote host. It comes integrated in a self-contained ruggedized aluminum case, which gives flexibility in evaluating and prototyping across different environments.

APPLICATIONS

  • Aerospace and Defense
  • Communications
  • Advanced Education

Resources

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AD-JUPITER-EBZ User Guide reference design link

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For hardware details please go to the User Resources Hardware section on the Wiki User's Guide reference design link

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DC1687B

LTC3115-1 Demo Board | 40V, 2A Synchronous Buck-Boost DC/DC Converter

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DC1687B

LTC3115-1 Demo Board | 40V, 2A Synchronous Buck-Boost DC/DC Converter

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DC1687B
LTC3115-1 Demo Board | 40V, 2A Synchronous Buck-Boost DC/DC Converter
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Product Detail

Demonstration circuit 1687B features the LTC3115-1, a high voltage monolithic synchronous buck-boost converter.

The DC1687B demo board has two user-selectable operating modes: Burst Mode® operation and forced continuous operation (fixed frequency PWM) (JP1). There is also an accurate programmable RUN pin which is used to enable the converter (JP2).

The DC1687B operates with a 2.7V to 40V input voltage range. The demo board has been designed with the output voltage set to 5V. The LTC3115-1 incorporates a proprietary low noise switching algorithm which optimizes efficiency with input voltages above, below or equal to the output voltage and ensures seamless transitions between operating modes.

The demo board has been programmed to operate at 1MHz in PWM mode to optimize small size with high efficiency operation.

The demo board also has optional provisions to back feed VCC in order to increase efficiency in some 5V output applications. There is also a provision for an optional Schottky diode from SW2 to VOUT for applications where VOUT is greater than 20V and short circuit protection is desired. Consult the data sheet for more information on these options.

The LTC3115-1 data sheet has detailed information about the operation, specifications, and applications of the part. The data sheet should be read in conjunction with this quick start guide.

Resources

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DC1687B - Design Files Download

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DC1687B - Schematic Download

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DC1687B - Demo Manual Download

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Evaluation Kits2

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AD-JUPITER-EBZ

Software-Defined Radio
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DC1687B

LTC3115-1 Demo Board | 40V, 2A Synchronous Buck-Boost DC/DC Converter

Tools & Simulations 1

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

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LTC3115-1 Demo Circuit - Wide Input Voltage, High Efficiency, Low Noise 5V Regulator (2.7-40V to 5V @ 2A) Download

3.00K

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LTC3115-1 Demo Circuit - 12V 1MHz Buck-Boost Regulator with Undervoltage Lockout (10- 40V to 12V @ 1.4A) Download

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LTC3115-1 - Buck-Boost Regulators Download

2.85 K

Reference Designs 1

Stratix V Advanced System Development Board

Stratix V Advanced System Development Board

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Stratix V Advanced System Development Board

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Stratix V Advanced System Development Board

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  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
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Part Used 11

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Reference Designs1

Stratix V Advanced System Development Board

Stratix V Advanced System Development Board

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