LM2698MMX-ADJ

Voltage Regulators - DC DC Switching Regulators Overview

The LM2698MMX-ADJ is a switching voltage regulator from Texas Instruments, packaged in an 8-VSSOP. It operates as a boost or SEPIC converter with an adjustable output voltage range of 2.2V to 17.5V. The device features an internal switch rated for 1.35A and supports an operating input voltage as low as 2.2V. Switching frequency is adjustable between 600 kHz and 1.25 MHz. It functions with positive or negative adjustable outputs and operates within a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Supports both boost and SEPIC topologies for flexible power conversion
• Features an internal 1.35A switch for compact design
• Allows adjustable switching frequency from 600 kHz to 1.25 MHz
• Enables positive or negative adjustable output voltages

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered equipment requiring step-up conversion
• Systems needing negative voltage generation from a single supply
• Industrial control circuits utilizing SEPIC topology for wide input ranges

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free and RoHS compliance when ordering. Confirm the VSSOP-8 package type matches your PCB footprint requirements. Ensure the adjustable frequency setting aligns with your electromagnetic interference (EMI) constraints. Check that the input voltage range covers your minimum source voltage to prevent startup issues.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a small form factor is critical due to the VSSOP-8 package. Choose it if the application requires flexibility in switching frequency to optimize efficiency or noise. Consider it for designs needing both boost and SEPIC capabilities in a single IC. Verify that the 1.35A current limit meets the peak load requirements of the target circuit.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2698 family of simple switcher regulators. It is designed for high-efficiency power management in space-constrained applications. The device integrates the power switch and control logic to minimize external component count. It serves as a solution for converting low input voltages to higher levels or generating inverted supplies.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for direct pin-compatible alternatives within the same manufacturer's portfolio. Verify that any substitute maintains the 8-VSSOP package and similar electrical characteristics. Ensure the replacement supports the required boost or SEPIC functionality. Confirm thermal performance matches the original design constraints.