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Notas de Diseño

• Descargar
  Cascadable 7A Point-of-Load Monolithic Buck Converter &mdash DN387
  PDF, 106 Kb, Archivo publicado: feb 23, 2006
  Extracto del documento

  advertisement Cascadable 7A Point-of-Load Monolithic Buck Converter
  Design Note 387
  Peter Guan
  Introduction
  Easy-to-use and compact point-of-load power supplies
  are necessary in systems with widely distributed, high
  current, low voltage loads. The LTCВ® 3415 provides a
  compact, simple and versatile solution. It includes a pair
  of integrated complementary power MOSFETs (32mО©
  top and 25mО© bottom) and requires no external sense
  resistor. A complete design requires an inductor and
  input/output capacitors, and that’s it. The result is a fast,
  constant frequency, 7A current mode DC/DC switching
  regulator.
  Features
  The overall solution is extremely compact since the
  LTC3415’s 5mm × 7mm QFN package footprint is small
  and its high operating frequency of 1.5MHz allows the
  use of small low-profile surface mount inductors and
  ceramic capacitors. For loads higher than 7A, multiple
  LTC3415s can be cascaded to share the load while running mutually anti-phase, which reduces overall ripple
  at both the input and the output.
  Other features include: Spread spectrum operation to reduce system noise Output tracking for controlled VOUT ramp-up and …

Artículos

• Descargar
  Cascadable, 7A Point-of-Load Monolithic Buck Converter &mdash LT Journal
  PDF, 313 Kb, Archivo publicado: marzo 28, 2006
  Extracto del documento

  L DESIGN FEATURES Cascadable, 7A Point-of-Load
  by Peter Guan
  Monolithic Buck Converter
  Introduction
  Easy-to-use and compact point-ofload power supplies are necessary
  in systems with widely distributed,
  high current, low voltage loads. The
  LTC3415 provides a compact, simple,
  complete and versatile solution. It
  includes a pair of integrated complementary power MOSFETs (32mО© top
  and 25mО© bottom) and requires no
  external sense resistor. A complete
  design involves choosing an inductor
  and input/output capacitors, and
  that’s it. The result is a fast, constant
  frequency, current mode, 7A DC/DC
  switching regulator. 0.1ВµF 47ВµF
  6.3V
  3x 38
  1
  3
  4
  5 10pF 6 …

Linea modelo

Clasificación del fabricante

• Power Management > Switching Regulator > Step-Down (Buck) Regulators > Internal Power Switch Buck

Otros nombres:

LTC3415EUHFTRPBF, LTC3415EUHF TRPBF