LTC3883
LTC3883-1
Info : RECOMMENDED FOR NEW DESIGNS
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LTC3883
LTC3883-1

Single Phase Step-Down DC/DC Controller with Digital Power System Management

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 16
1ku List Price Starting From $5.75
Features
  • PMBus/I2C Compliant Serial Interface
    • Telemetry Read-Back Includes VIN, IIN, VOUT, IOUT, Temperature and Faults
    • Programmable Voltage, Current Limit, Digital Soft-Start/Stop, Sequencing, Margining, OV/UV/OC and Frequency Synchronization (250kHz to 1MHz)
  • ±0.5% Output Voltage Accuracy over Temperature
  • Integrated 16-Bit ADC and 12-Bit DAC
  • Integrated High Side Current Sense Amplifier
  • Internal EEPROM with ECC and Fault Logging
  • Integrated N-Channel MOSFET Gate Drivers

Power Conversion

  • Wide VIN Range: 4.5V to 24V
  • VOUT Range: 0.5V to 5.4V
  • Analog Current Mode Control Loop
  • Accurate PolyPhase® Current Sharing for Up to 6 Phases
  • Auto Calibration of Inductor DCR
  • Minimum On Time 45ns
  • Available in a 32-Lead (5mm × 5mm) QFN Package
  • AEC-Q100 Qualified for Automotive Applications
Additional Details
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The LTC3883/LTC3883-1 are PolyPhase capable DC/DC synchronous step-down switching regulator controllers with a PMBus compliant serial interface. The controllers use a constant frequency, current mode architecture that is supported by the LTPowerPlay software development tool with graphical user interface (GUI).

Switching frequency, output voltage, and device address can be programmed using external configuration resistors. Additionally, parameters can be set via the digital interface or stored in on-chip EEPROM.

The LTC3883/LTC3883-1 can be configured for Burst Mode® operation, discontinuous (pulse-skipping) mode or continuous inductor current mode. The LTC3883 incorporates an internal 5V linear regulator while the LTC3883-1 uses an external 5V supply for minimum power loss.

The LTC3883/LTC3883-1 are available in a 32-lead 5mm × 5mm QFN package.

Applications

  • High Current Distributed Power Systems
  • Telecom Systems
  • Intelligent Energy Efficient Power Regulation
Part Models 16
1ku List Price Starting From $5.75

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Documentation

Documentation

Video

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 3

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DC1890A

LTC3883EUH Demo Board | Programming Clamshell Socketed Demo Board

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DC1890A

LTC3883EUH Demo Board | Programming Clamshell Socketed Demo Board

LTC3883EUH Demo Board | Programming Clamshell Socketed Demo Board

Product Detail

Demonstration circuit 1890A contains the circuitry needed to program and verify the EEPROM of the LTC3883 and LTC3883-1. That is its only purpose. The DC1890A is shipped with a LTC3883 installed in the clamshell style programming socket. The EEPROM contains the factory default configuration. The LTpowerPlay .proj file that corresponds to the factory default can be found in the GUI.

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DC1778B-A

LTC3883EUH Demo Board | 6.5V < VIN < 24V; 0.5V < VOUT < 5V @ 20A, with RSENSE Current Sense

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DC1778B-A

LTC3883EUH Demo Board | 6.5V < VIN < 24V; 0.5V < VOUT < 5V @ 20A, with RSENSE Current Sense

LTC3883EUH Demo Board | 6.5V < VIN < 24V; 0.5V < VOUT < 5V @ 20A, with RSENSE Current Sense

Product Detail

Demonstration circuit 1778B-A is a single-output, synchronous buck converter featuring the LTC3883EUH, a single-output current mode controller with digital power management and input current sense capability. It senses output inductor current across a sense resistor.

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DC2052A

LTC3880EUJ/LTC3883EUH | 3-Phase Demo Board, VIN Range: 6.5V to 14V, VOUT Range: 0.5V to 1.8V @ 60A, PMBus Controlled, Works with DC1613 Dongle

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DC2052A

LTC3880EUJ/LTC3883EUH | 3-Phase Demo Board, VIN Range: 6.5V to 14V, VOUT Range: 0.5V to 1.8V @ 60A, PMBus Controlled, Works with DC1613 Dongle

LTC3880EUJ/LTC3883EUH | 3-Phase Demo Board, VIN Range: 6.5V to 14V, VOUT Range: 0.5V to 1.8V @ 60A, PMBus Controlled, Works with DC1613 Dongle

Product Detail

Demonstration circuit 2052A is a 3-phase single output synchronous buck converter featuring the LTC3880EUJ, a dual-phase current mode controller, and the LTC3883EUH, a single-phase current mode controller with input current sensing capability. Both devices have a PMBus interface and the power system management functions.


The input voltage range of this board is from 6.5V to 14V. The output voltage can be programmed from 0.5V to 1.8V, with an output current of up to 60A total. The factory default setting for the output voltage is 1.0V.

Tools & Simulations

Tools & Simulations 4

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.

Linduino

Linduino is Analog Devices’ Arduino compatible system for developing and distributing firmware libraries and example code for our integrated circuits. Each Linduino-supported product includes an example main program, defined in the LTSketchbook/Part Number folder and driver code, defined in the LTSketchbook/libraries folder.

Linduino code repository on GitHub and instructions on how to use the code.

Purchase Linduino

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