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LM2621MMX is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC REG BST SEPIC ADJ 8VSSOP. Review the specifications below when checking this part for your BOM.
The LM2621MMX is a low input voltage step-up DC-DC converter manufactured by Texas Instruments. It operates with an input voltage range of 1.2 V to 14 V and provides an adjustable output voltage from 1.24 V to 14 V. The device supports a maximum output current of 2.85 A and features an adjustable switching frequency between 300 kHz and 2 MHz. It functions within a temperature range of -40°C to +85°C and utilizes a VSSOP-8 surface-mount package.
Verify the specific suffix against official Texas Instruments documentation to confirm pinout, thermal characteristics, and RoHS compliance status. Ensure the ordering part number matches the required package variant and temperature grade. Cross-reference datasheet revisions to validate electrical specifications before integration into design files.
Select this component when designing circuits with input voltages as low as 1.2 V. The wide input range accommodates discharging battery profiles without additional pre-regulation. Consider the adjustable frequency feature to minimize external inductor and capacitor sizes while maintaining desired ripple performance.
This device belongs to the LM2621 series of low-input-voltage step-up converters. It is designed to replace linear regulators in battery-operated applications where higher efficiency and extended battery life are critical. The family offers various package options including VSSOP and MSOP formats.
Consult official substitution guides for compatible alternatives such as the LM2621M or LM2621MM/NOPB variants. Verify that any substitute maintains identical pin configurations and electrical parameters to ensure direct compatibility without circuit redesign.
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