Datasheet Linear Technology LTM4615

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Design Notes

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  Triple Output DC/DC uModuleВ® Regulator in 15mm Г— 15mm Г— 2.8mm Surface Mount Package Replaces Up to 30 Discrete Components &mdash DN469
  PDF, 130 Kb, File published: Jul 21, 2009
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  Triple Output DC/DC ВµModuleВ® Regulator in 15mm Г— 15mm Г—
  2.8mm Surface Mount Package Replaces Up to 30 Discrete
  Components Design Note 469
  Eddie Beville and Alan Chern
  Introduction
  When space and design-time are tight in multivoltage
  systems, the solution is a multioutput DC/DC regulator
  IC. For more space and time constraint systems, a better
  solution is an already-fabricated compact multioutput
  DC/DC system that includes not only the regulator ICs
  but the supporting components such as the inductors,
  compensation circuits, capacitors and resistors.
  Dual Switching 4A and 1.5A VLDOв„ў Regulators
  The LTM В®4615 offers three separate power supply
  regulators in a 15mm Г— 15mm Г— 2.8mm LGA surface
  mount package: two switching DC/DC regulators and
  one very low dropout VLDO linear regulator (Figure 1).
  MOSFETs, inductors, and other support components are
  all built in. Each power supply can be powered individually
  or together, to form a single input, three output design.
  Moreover, for an otherwise complex triple output circuit
  design, the task is eased to designing with only one device
  while the layout is as simple as copying and pasting the …

Articles

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  Easy Multivoltage Layout with Complete Dual and Triple Output Point-of-Load uModule Regulators in 15mm × 15mm Packages &mdash LT Journal
  PDF, 844 Kb, File published: Sep 1, 2009
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  L DESIGN FEATURES Easy Multivoltage Layout with
  Complete Dual and Triple Output
  Point-of-Load ВµModule Regulators
  in 15mm Г— 15mm Packages
  by Eddie Beville and Alan Chern
  Introduction
  Imagine a multivoltage printed circuit
  board so space-constrained that even
  the most experienced layout engineer
  would shiver at the thought of putting
  together the puzzle of components for
  DC/DC conversion. A typical multivoltage solution either incorporates a
  single multioutput DC/DC regulator
  IC or several independent regulators.
  Either solution requires a number of
  discrete support components, such
  as inductors, capacitors and resistors. Since there is a wide range of
  available small, high performance ICs,
  this type of system design is typical.
  Unfortunately, even the best of these
  regulators require careful placement
  of support components to take into
  account both electrical effects and …

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Manufacturer's Classification

• Power Management > Switching Regulator > Step-Down (Buck) Regulators > Multiple Output Buck
• µModule Solutions > µModule Regulators > µModule Buck Regulators