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LM3205 - Step-Down DC-DC Converter

Description

The LM3205 is a DC-DC converter optimized for powering RF power amplifiers (PAs) from a single Lithium-Ion cell, however they may be used in many other applications.

It steps down an input voltage from 2.7V to 5.5V to a variable output voltage from 0.8V(typ.) to 3.6V(typ.).

Features

  • 1.
  • 2 2 MHz (typ. ) PWM Switching Frequency.
  • Operates from a Single Li-Ion Cell (2.7V to 5.5V).
  • Variable Output Voltage (0.8V to 3.6V).
  • Fast Output Voltage Transient (0.8V to 3.6V in 20µs).
  • 650mA Maximum Load Capability.
  • High Efficiency (96% Typ at 4.2VIN, 3.4VOUT at 400mA) from Internal Synchronous Rectification.
  • Current Overload Protection.
  • Thermal Overload Protection.
  • Packages.
  • 8-Pin DSBGA (Lead Free).

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Full PDF Text Transcription

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LM3205 www.ti.com SNVS388E – JULY 2005 – REVISED APRIL 2013 LM3205 650mA Miniature, Adjustable, Step-Down DC-DC Converter for RF Power Amplifiers Check for Samples: LM3205 FEATURES 1 •2 2 MHz (typ.) PWM Switching Frequency • Operates from a Single Li-Ion Cell (2.7V to 5.5V) • Variable Output Voltage (0.8V to 3.6V) • Fast Output Voltage Transient (0.8V to 3.6V in 20µs) • 650mA Maximum Load Capability • High Efficiency (96% Typ at 4.2VIN, 3.
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