LM26001MXA/NOPB

LM26001MXA/NOPB Application Field and Working Principle

LM26001MXA/NOPB is a DC-DC buck switching regulator designed to provide highly efficient and reliable voltage regulation. It is part of the low-power DC-DC switching regulators offered by Texas Instruments in its power management integrated circuit (PMIC) product offering. The LM26001MXA/NOPB offers high efficiency, low quiescent current, integrated compensation, low EMI, and an extended operating temperature range.

Features

• Low quiescent current, with max 1uA in Shutdown mode.
• High efficiency over a wide range of loads, up to 93% at 3V Out, 1.2A Load.
• Integrated compensation for loop stability.
• Low EMI mode available reduces radiated emissions.
• Accurate output voltage, with a tolerance of +/-1%.
• Overtemperature protection.
• Adjustable on-time allows for optimal transient response.
• Adjustable switching frequency up to 2.25MHz.
• Available in a 24-QFN package.

Application Field

The LM26001MXA/NOPB is a high-efficiency DC-DC switching regulator, making it ideal for a variety of applications in the small form factor market. It can be used for powering portable and embedded applications, such as those in the automotive, industrial, health care and consumer electronics markets. It can also be used to power system-on-chip (SoC) devices, microprocessors and FPGAs, and their associated logic and memory devices.

Working Principle

The LM26001MXA/NOPB is a DC-DC buck switching regulator based on a Pulse Width Modulation (PWM) control scheme. It uses a single inductor topology, and the switching frequency is adjustable up to 2.25MHz. The input voltage range is from 2.95V to 5.5V, with an adjustable output voltage of 0.6V to 3.075V. The LM26001MXA/NOPB is capable of delivering up to 3.6A of peak current and 1.2A of continuous current. It offers high efficiency, low quiescent current, integrated compensation, low EMI, and an extended operating temperature range.

The LM26001MXA/NOPB features short-circuit protection, overtemperature protection and latch-off, as well as a shutdown mode which dramatically reduces quiescent current consumption. The integrated compensation compensates for the loss inloop stability due to the sudden changes in loadcurrent. The adjustable on-time and the adjustable switching frequency allow for optimal transient response and noise reduction. Moreover, an asynchronous rectifier mode is available which offers lower EMI, resulting in lower electromagnetic interference.

Conclusion

The LM26001MXA/NOPB is an ideal solution for a wide range of low-power DC-DC switching regulator applications. With its high efficiency, low quiescent current, integrated compensation and low EMI, it is well-suited for a variety of small form factor applications. It offers short-circuit, overtemperature and latch-off protection, adjustable on-time and switching frequency, as well as an asynchronous rectifier mode for reduced EMI. Thus, the LM26001MXA/NOPB is an ideal solution for powering portable, embedded, and system-on-chip (SoC) devices in the automotive, industrial, health care and consumer electronics markets.