LM2623MMX

Voltage Regulators - DC DC Switching Regulators Overview

The LM2623MMX/NOPB is a synchronous step-up DC-DC converter from Texas Instruments, housed in an 8-VSSOP package. It operates with an input voltage range of 0.8 V to 14 V and provides an adjustable output voltage between 1.24 V and 14 V. The device supports a maximum switch current of 2.2 A and features a programmable switching frequency ranging from 300 kHz to 2 MHz. It includes a shutdown feature and maintains a low operating supply current of 80 µA. The component functions within a temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous rectification architecture for improved efficiency
• Programmable switching frequency allows optimization for size or performance
• Integrated shutdown control for power management
• Wide input voltage range suitable for single-cell battery applications

Voltage Regulators - DC DC Switching Regulators Applications

• Portable consumer electronics powered by single-cell lithium-ion batteries
• Battery-powered devices requiring efficient voltage boosting
• General-purpose step-up power supplies in compact form factors

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number suffix, specifically /NOPB, to confirm RoHS compliance and lead-free status. Confirm the package type matches the design requirements, as variations such as LD (WSON) exist. Ensure the ordering quantity aligns with standard packaging formats like cut tape or reel. Cross-reference the specific revision level if strict manufacturing consistency is required for production runs.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a synchronous boost topology is required for high efficiency in space-constrained designs. The 8-VSSOP package offers a compact footprint compared to larger alternatives. Consider the 2.2 A switch current limit against peak load demands. The wide input range accommodates discharging battery profiles without additional circuitry. Verify thermal performance under maximum load conditions given the small package size.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2623 family of synchronous step-up converters. It shares functional similarities with the LM2621 but differs in specific electrical characteristics and pinout configurations. The LM2623 series is designed for applications requiring higher efficiency and lower component count than non-synchronous alternatives. It complements other Texas Instruments PMIC solutions for portable systems.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

• LM2623AMM/NOPB

Voltage Regulators - DC DC Switching Regulators FAQ

Is the LM2623MMX/NOPB a synchronous converter?

Yes, the LM2623 integrates synchronous rectification to improve conversion efficiency compared to diode-based rectification.

What is the minimum input voltage for operation?

The device supports an input voltage range starting from 0.8 V, allowing it to operate effectively as a battery discharges.