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LM3203 - Step-Down DC-DC Converter

Datasheet Summary

Description

The LM3203 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 of 2.7V to 5.5V to an adjustable output voltage of 0.8V to 3.6V.

Features

  • 1.
  • 2 2MHz (Typ. ) PWM Switching Frequency.
  • Operates from a Single Li-Ion Cell (2.7V to 5.5V).
  • Adjustable Output Voltage (0.8V to 3.6V).
  • 500mA Maximum Load Capability (PWM and Bypass Mode).
  • PWM / Forced Bypass Mode.
  • Low RDSON Bypass FET: 85mΩ (Typ. ).
  • High Efficiency (96% typ. at 3.6VIN, 3.2VOUT at 150mA).
  • Fast Turn-On Time When Enabled (50µs typ. ), 3GPP Compliant.
  • 10-Pin DSBGA Package.
  • Current Overload Protect.

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Datasheet preview – LM3203

Datasheet Details

Part number LM3203
Manufacturer Texas Instruments
File Size 3.05 MB
Description Step-Down DC-DC Converter
Datasheet download datasheet LM3203 Datasheet
Additional preview pages of the LM3203 datasheet.

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Full PDF Text Transcription

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LM3203 www.ti.com SNVS355D – MAY 2005 – REVISED APRIL 2013 LM3203 Step-Down DC-DC Converter with Bypass Mode for CDMA / WCDMA RF Power Amplifiers Check for Samples: LM3203 FEATURES 1 •2 2MHz (Typ.) PWM Switching Frequency • Operates from a Single Li-Ion Cell (2.7V to 5.5V) • Adjustable Output Voltage (0.8V to 3.6V) • 500mA Maximum Load Capability (PWM and Bypass Mode) • PWM / Forced Bypass Mode • Low RDSON Bypass FET: 85mΩ (Typ.) • High Efficiency (96% typ. at 3.6VIN, 3.2VOUT at 150mA) • Fast Turn-On Time When Enabled (50µs typ.), 3GPP Compliant • 10-Pin DSBGA Package • Current Overload Protection • Thermal Overload Protection DESCRIPTION The LM3203 is a DC-DC converter optimized for powering RF power amplifiers (PAs) from a single Lithium-Ion cell.
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