LTM4651
Info : RECOMMENDED FOR NEW DESIGNS
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LTM4651

EN55022B Compliant 58V, 24W Inverting-Output DC/DC μModule Regulator

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 3
1ku List Price Starting From $17.37
Features
  • Complete Low EMI Switch Mode Power Supply
  • EN55022 Class B Compliant
  • Wide Input Voltage Range: 3.6V to 58V
  • Up to 4A Output Current
    • 24W Output from 12VIN to –24VOUT, PLOSS = 5W, TA = 60°C, tRISE = 60°C, 200LFM
  • Output Voltage Range: –26.5V ≤ VOUT– ≤ –0.5V
    • Safe Operating Area: VIN + |VOUT–| ≤ 58V
  • ±1.67% Total DC Output Voltage Error Over Line, Load and Temperature (–40°C to 125°C)
  • Parallel and Current Share with Multiple LTM4651s
  • Constant-Frequency Current Mode Control
  • Frequency Synchronization Range: 250kHz to 3MHz
  • Power Good Indicator and Programmable Soft-Start
  • Overcurrent/Overvoltage/Overtemperature Protection
  • 15mm × 9mm × 5.01mm BGA Package
Additional Details
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The LTM4651 is an ultralow noise, 58V, 24W DC/DC μModule® inverting topology regulator. It regulates a negative output voltage (VOUT) from a positive input supply voltage (VIN), and is designed to meet the radiated emissions requirements of EN55022. Conducted emission requirements can be met by adding standard filter components.

Included in the package are the switching controller, power MOSFETs, inductor, filters and support components. The LTM4651 can regulate VOUT to a value between –0.5V and –26.5V, provided that its input and output voltages adhere to the safe operating area criteria of the LTM4651: VIN + |VOUT| ≤ 58V. A switching frequency range of 250kHz to 3MHz is supported (400kHz default) and the module can synchronize to an external clock.

Despite being an inverting topology regulator, no level shift circuitry is needed to interface to the LTM4651’s RUN, PGOOD or CLKIN pins; those pins are referenced to GND.

The LTM4651 is offered in a 15mm × 9mm × 5.01mm BGA package with SnPb or RoHS compliant terminal finish.

Applications

  • Avionics, Industrial Control and Test Equipment
  • Video, Imaging and Instrumentation
  • 48V Telecom and Network Power Supplies
  • RF Systems
Part Models 3
1ku List Price Starting From $17.37

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTM4651EY#PBF
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LTM4651IY
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LTM4651IY#PBF
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Product Lifecycle

PCN

Jul 21, 2021

- 21_0159

Ink Mark to Laser Mark Conversion for µModule

LTM4651EY#PBF

PRODUCTION

LTM4651IY

PRODUCTION

LTM4651IY#PBF

PRODUCTION

Feb 28, 2020

- 20_0123

Micro-Module, Test Site Transfer from Analog Devices Singapore to Analog Devices Penang, Malaysia

LTM4651EY#PBF

PRODUCTION

LTM4651IY

PRODUCTION

LTM4651IY#PBF

PRODUCTION

Feb 5, 2020

- 20_0127

Supplier Material Change for µModule

LTM4651EY#PBF

PRODUCTION

LTM4651IY

PRODUCTION

LTM4651IY#PBF

PRODUCTION

Apr 11, 2019

- 19_0067

Notification of Wafer Fab Location Change for 0.35 BCD Process

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Jul 21, 2021

- 21_0159

arrow down

Ink Mark to Laser Mark Conversion for µModule

LTM4651EY#PBF

PRODUCTION

LTM4651IY

PRODUCTION

LTM4651IY#PBF

PRODUCTION

Feb 28, 2020

- 20_0123

arrow down

Micro-Module, Test Site Transfer from Analog Devices Singapore to Analog Devices Penang, Malaysia

LTM4651EY#PBF

PRODUCTION

LTM4651IY

PRODUCTION

LTM4651IY#PBF

PRODUCTION

Feb 5, 2020

- 20_0127

arrow down

Supplier Material Change for µModule

LTM4651EY#PBF

PRODUCTION

LTM4651IY

PRODUCTION

LTM4651IY#PBF

PRODUCTION

Apr 11, 2019

- 19_0067

arrow down

Notification of Wafer Fab Location Change for 0.35 BCD Process

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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DC2328A

LTM4651 Demo Board | EN55022B Compliant 58V, 24W Inverting-Output DC/DC μModule Regulator

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DC2328A

LTM4651 Demo Board | EN55022B Compliant 58V, 24W Inverting-Output DC/DC μModule Regulator

LTM4651 Demo Board | EN55022B Compliant 58V, 24W Inverting-Output DC/DC μModule Regulator

Product Detail

Demonstration circuit 2328A is an inverting buck-boost converter with 12V to 34V input voltage, –24V output voltage and max 2A output current capability, which features the LTM4651Y. The LTM4651 is an ultralow noise, 58V, 24W inverting-topology DC/DC µModule regulator. It is designed to meet the radiated emissions requirement of EN55022B. A switching frequency range of 250kHz to 3MHz is supported and the module can synchronize to an external clock. The LTM4651 data sheet must be read in conjunction with this demo manual prior to working on or modifying demo circuit DC2328A.


 


 


Tools & Simulations

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.

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