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LM3208 - Step-Down DC-DC Converter

Description

The LM3208 is a DC-DC converter optimized for powering RF power amplifiers (PAs) from a single Lithium-Ion cell.

However, it may be used in many other applications.

It steps down an input voltage in the range from 2.7V to 5.5V to an adjustable output voltage of 0.8V to 3.6V.

Features

  • 1.
  • 2 2 MHz (typ. ) PWM Switching Frequency.
  • Operates from a Single Li-Ion Cell (2.7V to 5.5V).
  • Adjustable Output Voltage (0.8V to 3.6V).
  • Fast Output Voltage Transient (0.8V to 3.4V in 25µs typ. ).
  • 650mA Maximum Load Capability.
  • High Efficiency (95% typ. at 3.9VIN, 3.4VOUT at 400mA).
  • 8-pin DSBGA Package.
  • Current Overload Protection.
  • Thermal Overload Protection.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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LM3208 www.ti.com SNVS404B – APRIL 2006 – REVISED MARCH 2013 LM3208 650mA Miniature, Adjustable, Step-Down DC-DC Converter for RF Power Amplifiers Check for Samples: LM3208 FEATURES 1 •2 2 MHz (typ.) PWM Switching Frequency • Operates from a Single Li-Ion Cell (2.7V to 5.5V) • Adjustable Output Voltage (0.8V to 3.6V) • Fast Output Voltage Transient (0.8V to 3.4V in 25µs typ.) • 650mA Maximum Load Capability • High Efficiency (95% typ. at 3.9VIN, 3.4VOUT at 400mA) • 8-pin DSBGA Package • Current Overload Protection • Thermal Overload Protection APPLICATIONS • Cellular Phones • Hand-Held Radios • RF PC Cards • Battery Powered RF Devices DESCRIPTION The LM3208 is a DC-DC converter optimized for powering RF power amplifiers (PAs) from a single Lithium-Ion cell.
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