The LM2621MM/NOPB is a versatile integrated circuit (IC) component that acts as a step-up DC-DC converter. It is commonly used to efficiently boost voltage levels in battery-powered applications and is manufactured by Texas Instruments. This IC is capable of operating from low input voltages and provides a regulated output voltage, making it suitable for a wide range of electronic devices.
One of the key features of the LM2621MM/NOPB is its ability to operate with input voltages as low as 1.2V. This allows the IC to be used in applications where power sources have limited voltage availability, such as single-cell alkaline or NiCd/NiMH batteries. With its high efficiency conversion capabilities, the LM2621MM/NOPB can deliver up to 2.84W of output power without the need for an external power switch.
The LM2621MM/NOPB offers a fixed output voltage and adjustable switching frequency, enabling designers to tailor the performance according to their specific requirements. It can provide a regulated output voltage of either 5V or 3.3V, making it compatible with a variety of semiconductor devices and microcontrollers. The adjustable frequency range lies between 100kHz and 1MHz, facilitating optimization of loop stability and filter design.
To ensure reliable and robust operation, the LM2621MM/NOPB incorporates several protection features. These include thermal shutdown, undervoltage lockout, and current limit protection
