LM2704MFX-ADJ/NOPB

Overview

The LM2704MFX-ADJ/NOPB is a micropower step-up DC/DC converter manufactured by Texas Instruments. It operates with an input voltage range of 2.2 V to 7 V and provides an adjustable output voltage up to 20 V. The device features a peak switch current of 550 mA and utilizes a small 5-lead SOT-23 package. It incorporates a fixed off-time control scheme to conserve operating current, making it suitable for battery-powered applications requiring efficient power conversion in compact form factors.

Feature Summary

• Micropower operation utilizing a fixed off-time control scheme to minimize quiescent current consumption
• Integrated 550 mA peak current limit for internal switch protection
• Adjustable output voltage capability allowing flexible design configurations
• Compact 5-lead SOT-23 surface-mount package for space-constrained layouts

Applications

• Backlight drivers for LCD displays
• Battery-powered portable electronic devices
• General step-up voltage conversion in low-power systems

Procurement Notes

Verify the specific suffix 'ADJ' confirms the adjustable output variant. Confirm the 'NOPB' designation indicates lead-free and RoHS compliance as per manufacturer specifications. Ensure the SOT-23-5 package type matches the target PCB footprint requirements. Cross-reference the datasheet revision date to ensure compatibility with current design standards.

Selection Notes

Select this component when designing circuits that require a boost topology with minimal static current draw. It is appropriate for single-cell lithium-ion or alkaline battery applications where input voltages are low. The adjustable output feature allows customization of the regulated voltage level. Consider the 550 mA peak current limit when sizing external inductors and capacitors for the intended load.

Part Context

This part belongs to the LM2704 family of micropower step-up converters from Texas Instruments. It is designed specifically for efficiency in low-power environments. The device integrates the power switch, eliminating the need for external high-current components. It serves as a solution for applications demanding high efficiency at light loads while maintaining a small physical footprint.

Replacement Considerations

Check for direct pin-compatible alternatives within the same manufacturer's portfolio that offer updated availability status. Verify if newer generations provide improved thermal performance or extended temperature ranges. Ensure any substitute maintains the same SOT-23-5 package and electrical characteristics for seamless integration.