LM2703MFX-ADJ

Overview

The LM2703MFX-ADJ is a micropower step-up DC/DC converter manufactured by Texas Instruments. It operates with an adjustable output voltage range of 1.26 V to 5.5 V and provides a peak current limit of 350 mA. The device functions within a switching frequency range of 600 kHz to 1.25 MHz and supports input voltages from 0.7 V to 5.5 V. It is housed in a compact SOT-23-5 package and is rated for operation between -40°C and +125°C.

Feature Summary

• Micropower step-up DC/DC converter topology
• Adjustable output voltage capability
• Integrated 350 mA peak current limit
• Compact five-lead SOT-23 surface-mount package

Applications

• LCD backlight drivers
• Portable electronic devices
• Battery-powered systems requiring voltage boosting

Procurement Notes

Verify the complete part number including suffixes such as NOPB and MFX against official Texas Instruments documentation to ensure correct pinout, packaging, and environmental compliance specifications match your design requirements.

Selection Notes

Select this component when designing circuits that require a small form factor boost converter with low quiescent current. Ensure the input voltage source falls within the specified operating range and that thermal management considerations align with the SOT-23 package limitations.

Part Context

This device belongs to the LM2703 family of micropower converters. It is designed for applications where space is constrained and efficiency at light loads is critical. The adjustable version allows flexibility in setting the output voltage via external resistors.

Replacement Considerations

Check for direct substitutes like LM2703MX-ADJ/NOPB which shares similar electrical characteristics but may differ in tape-and-reel packaging specifications or specific manufacturing lot variations.