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LTM4703 Datasheet

LTM4703 Datasheet

16VIN, 12A Ultralow Noise Silent Switcher 3 μModule Regulator
Part No.: LTM4703
Page: 32 Pages
Size: 4469 KB
Manufacturer: Linear Technology
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Update Time: 2024-12-14 21:39:08
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LTM4703 Datasheet Applicable Part

SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

LTM4703 Datasheet(PDF)

LTM4703 Datasheet(Picture)

LTM4703 Features

  • Complete Solution in <1cm2 (Single-Sided PCB) or .5cm2 (Dual-Sided PCB)
  • Low Noise Silent Switcher®3 Architecture
    • Ultralow EMI Emissions
    • Ultralow RMS Noise (10Hz to 100kHz): 8μVRMS
  • ±1.5% Maximum Total DC Output Voltage Error Over Line, Load, and Temperature
  • Input Voltage Range: 3V to 16V
  • Output Voltage Range: 0.3V to 6V
  • 12A Maximum Continuous Output Current
  • Adjustable and Synchronizable: 300kHz to 3MHz
  • Current Mode Control, Fast Transient Response
  • Forced Continuous Mode (FCM) Capability
  • Multiphase Parallel with Current Sharing
  • Programmable Power Good
  • 6.25mm × 6.25mm × 5.07mm BGA Package

LTM4703 Applications

  • Telecom, Networking, and Industrial Equipment
  • RF Power Supplies: PLLs, VCOs, Mixers, LNAs, PAs
  • Low Noise Instrumentation
  • High Speed/High Precision Data Converters
  • Medical Equipment

LTM4703 Description

The LTM®4703 is a complete 12A step-down Silent Switcher 3 μModule® (micromodule) regulator in a tiny 6.25mm × 6.25mm × 5.07mm ball grid array (BGA) package.The package includes the switching controller, the power MOSFETs, an inductor, and support components. Operating over an input voltage range of 3V to 16V, the LTM4703 supports an output range of 0.3V to 6V. A single resistor sets the output voltage, providing unity gain operation over the output range and resulting in virtually constant output noise independent of the output voltage. Only bulk input and output capacitors are needed to finish the design.

The LTM4703 employs Silent Switcher 3 architecture with internal hot loop bypass capacitors to achieve both low electromagnetic interference (EMI) and high efficiency. Also, the LTM4703 has an ultralow noise architecture to obtain exceptional low-frequency (<100kHz) output noise. These low EMI and low noise features make the LTM4703 ideal for high current and noise-sensitive applications, which benefit from the high efficiency of a synchronous switching regulator.

The LTM4703 is available with a RoHS-compliant terminal finish.

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