LTC3883
LTC3883-1

RECOMMENDED FOR NEW DESIGNS

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

Part Models
16
1ku List Price
Starting From $5.75
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Part Details

  • 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
LTC3883
LTC3883-1
Single Phase Step-Down DC/DC Controller with Digital Power System Management
Efficiency and Power Loss vs Load Current Product Package 2 Product Package 1
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Documentation

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Software Resources


Hardware Ecosystem

Parts Product Life Cycle Description
Digital Power System Managers 1
LTC2974 RECOMMENDED FOR NEW DESIGNS 4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement
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Tools & Simulations

LTspice

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.

LTpowerCAD

LTpowerCAD® is a power supply design program which selects power stage components, provides detailed power efficiency, shows quick loop Bode plot stability and load transient analysis, and can export to LTspice for simulation.


Evaluation Kits

eval board
DC1778B-A

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

Product Details

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.

eval board
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

Product Details

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.

eval board
DC1890A

LTC3883EUH Demo Board | Programming Clamshell Socketed Demo Board

Product Details

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.

DC1778B-A
LTC3883EUH Demo Board | 6.5V < VIN < 24V; 0.5V < VOUT < 5V @ 20A, with RSENSE Current Sense
DC1778B - Schematic
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
DC2052A - Schematic
DC1890A
LTC3883EUH Demo Board | Programming Clamshell Socketed Demo Board
DC1890A

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