LM2623AMM

Voltage Regulators - DC DC Switching Regulators Overview

The LM2623AMM is a general-purpose, gated-oscillator-based DC/DC boost converter manufactured by Texas Instruments. It operates with an input voltage range of 0.8V to 14V and provides an adjustable output voltage from 1.24V to 14V. The device supports a maximum switch current of 2.2A and features a switching frequency range of 300kHz to 2MHz. It is housed in an 8-VSSOP package and functions as a positive, single-output regulator. The component is designed for surface-mount installation and operates within a temperature range of -40°C to 85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Utilizes a gated-oscillator architecture for efficient step-up voltage conversion
• Supports wide input voltage ranges starting from low levels down to 0.8V
• Features adjustable output voltage control via external feedback components
• Integrated thermal protection mechanisms for reliable operation

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered portable electronic devices requiring voltage boosting
• General-purpose DC-DC power supply designs
• Applications requiring low input voltage operation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific ordering suffix and package variant when sourcing replacements, as the LM2623AMM has been officially discontinued. Confirm that substitute parts such as the LM2623AMM/NOPB maintain identical pinout and electrical specifications to ensure direct compatibility without circuit redesign. Check manufacturer notices for any final purchase recommendations or end-of-life guidance.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for applications requiring a simple, cost-effective boost converter solution with low minimum input voltage capabilities. Consider the 2.2A switch current limit and the 300kHz to 2MHz frequency range when designing passive components. Ensure the selected package variant matches the PCB footprint requirements, noting the transition from older National Semiconductor versions to current TI manufacturing standards.

Voltage Regulators - DC DC Switching Regulators Part Context

The LM2623 belongs to a family of general-purpose DC/DC converters originally developed by National Semiconductor before its acquisition by Texas Instruments. This series is characterized by its gated-oscillator topology, which offers efficiency advantages over traditional PWM controllers in certain light-load conditions. The AMM designation indicates a specific commercial-grade temperature range and packaging configuration within the broader LM2623 product line.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The LM2623AMM/NOPB is listed as a parameter-equivalent replacement. Verify pin-for-pin compatibility and identical electrical characteristics before substitution.