LM3269 Datasheet - Texas Instruments

LM3269 Seamless-Transition Buck-Boost Converter

The LM3269 is buck-boost DC-DC converter designed to generate output voltages above or below a given input voltage and is particularly suitable for portable applications powered by a single-cell Li-ion battery. The LM3269 operates at a 2.4-MHz typical switching frequency in full synchronous operatio.

LM3269 Features

* 1 Operates From a Single Li-Ion Cell: 2.7 V to 5.5 V

* Adjustable Output Voltage: 0.6 V to 4.2 V

* Automatic PFM or PWM Mode Change

* 750-mA Maximum Load Capability for VBATT ≥ 3 V, VOUT = 3.8 V

* 2.4-MHz (typical) Switching Frequency

* Seamless Buck-

LM3269-etcTI.pdf