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LM3243 - Step-Down DC-DC Converter

Texas Instruments

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Datasheet Details

Part number	LM3243
Manufacturer	Texas Instruments ↗
File Size	1.87 MB
Description	Step-Down DC-DC Converter
Datasheet	LM3243-etcTI.pdf

LM3243 Product details

Description

The LM3243 is a DC-DC converter optimized for powering multi-mode 2G, 3G, and 4G RF power amplifiers (PAs) from a single Lithium-Ion cell.

Features

1 Input Voltage Range: 2.7 V to 5.5 V.
High-Efficiency PFM and PWM Modes With Internal Synchronous Rectification.
Analog Bypass Function with Low Dropout Resistance (45 mΩ Typical).
Dynamically Adjustable Output Voltage: 0.4 V to 3.6 V (Typical) in PFM and PWM Modes.
Maximum Load Current: 2.5 A in PWM Mode.
PWM Switching Frequency: 2.7 MHz (Average).
Modulated Switching Frequency to Aid Rx Band Compliance.
Operates From a Si.

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Published: Mar 14, 2020 |