DC2194A µModule Buck Regulators by Analog Devices

µModule Buck Regulators
Status: Production
Series: LTM4642
RoHS: Compliant
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The LTM4642 is a complete dual 4A or single 8A step-down DC/DC μModule® (micromodule) regulator. Included in the package are the switching controller, power FETs, inductor, and all support components. Operating over input voltage ranges of 4.5V to 20V, (2.375V min with external CPWR bias), the LTM4642 supports two outputs with voltage ranges of 0.6V to 5.5V, set by a single external resistor. Its high efficiency design delivers 4A continuous current (5A peak) for each output.High switching frequency and a valley current mode architecture enable a very fast transient response to line and load changes without sacrificing stability. The two outputs are interleaved with 180° phase to minimize the ripple noise and reduce the I/O capacitors.The power module is offered in a 9mm × 11.25mm × 4.92mm BGA package. The LTM4642 is RoHS compliant with Pb-free finish.

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Features

Small Form Factor Dual 4A Power Supply
Wide Input Voltage Range: 4.5V to 20V (2.375V Min with CPWR Bias)
Dual 180° Out-of-Phase Outputs with 4A DC
Dual Outputs with 0.6V to 5.5V Range
Output Voltage Tracking
±1.5% Maximum Total DC Output Voltage Error
Up to 95% Maximum Efficiency
Phase-Lockable Fixed Frequency 600kHz to 1.4MHz
Constant On-Time, Valley Current Mode Architecture
Selectable Burst Mode® Operation
Output Overvoltage and Overcurrent Protection
9mm × 11.25mm × 4.92mm BGA Package

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Alternative Descriptions

LTM4642IY DC to DC Converter and Switching Regulator Chip 1.182V to 1.218V/1.773V to 1.827V Output Demonstration Circuit | Richardson RFPD

DC2194A Development Boards & Evaluation Kits by Linear Technology

DEMO BOARD BUCK REGULATOR

Education Maker & Hobbyist Electronics>Development Boards & Evaluation Kits>Power Management Development Kits
Status: Unknown
Series: -
RoHS: Unknown
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Demonstration circuit of DC2194A features the LTM®4642IY, the wide input voltage, high efficiency and power density, dual 4A or single 8A DC/DC step-down µModule regulator. The step-down regulator operates from an input voltage range of 4.5V to 20V (or 2.5V min. with 5V external bias voltage at CPWR) and provides an adjustable output voltage range from 0.6V to 5V at 4A load current per channel. The part is capable of operating in dual phase single output, delivers up to 8A load current with interleaved two phases at 180 degrees. Differential output voltage sensing is available on Channel 1 for applications requiring more accurate output load regulation. A user-selectable mode input is provided to allow users to trade off ripple noise for light load efficiency: Discontinuous Mode (DCM) of operation delivers higher efficiency at light load while Continuous Conduction Mode (CCM) is preferred for noise sensitive applications. The mode pin can also be used to sync the switching frequency to an external clock. Programmable switching frequency range is from 600kHz to 1400kHz with a ±30% synchronization capture range. Constant on time, valley current mode control architecture and integrated internal control loop compensation allow very fast transient response to line and load changes while maintaining loop stability. It is recommended to read the data sheet and demo manual of LTM4642 prior using or making any changes to DC2194A.

Features

Specifications

Silicon Manufacturer Linear Technology
Silicon Core Number LTM4642
Kit Application Type Power Management - Voltage Regulator
Application Sub Type Buck Regulator
Kit Contents Demo Board LTM4642
Product Range -
Automotive Qualification Standard -
SVHC No SVHC (15-Jan-2018)
Features Step-down Regulator Dual 4A/Single 8A 1.8V/1.2V Output 800kHz Switching 4.5V-20V Supply

Frequently Asked Questions

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Additional datasheets, footprints and schematics for DC2194A are listed on our Part Details page. You can also find images and similar parts to DC2194A on this page.

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What category does DC2194A fall under?

The DC2194A is listed under µModule Buck Regulators.

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Is the DC2194A RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

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