LM3253 - High-Current Step-Down Converter

Product Overview

Texas Instruments

Part number	LM3253
Manufacturer	Texas Instruments
File Size	0.96 MB
Description	High-Current Step-Down Converter
Datasheet	LM3253 Datasheet
Additional preview pages of the LM3253 datasheet.

The LM3253 is a DC-DC converter optimized for powering multi-mode 2G/3G/4G RF power amplifiers (PAs) from a single Lithium-Ion cell.

1.
2 High-Efficiency PFM and PWM Modes with Internal Synchronous Rectification.
Analog Bypass Function with Low Dropout Resistance (45 mΩ typ. ).
Dynamically Adjustable Output Voltage, 0.4V to 3.6V (typ. ), in PFM and PWM modes.
3A Maximum Load Current in PWM Mode.
2.7MHz (average) PWM Switching Frequency.
Modulated Switching Frequency to Aid Rx Band Compliance.
Operates From a Single Li-ion Cell (2.7V to 5.5V).
ACB Reduces Ind.

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Published: Mar 14, 2020 |