LM3544M-L/NOPB

The LM3544M-L/NOPB is an advanced, highly efficient, single channel, high frequency synchronous PWM buck-boost power management integrated circuit (PMIC). It is developed for mobile and portable applications, specifically to support low quiescent current devices such as, digital cameras, cell phones, and other mobile devices. The LM3544M-L/NOPB provides an efficient power solution simultaneously powering a voltage regulator, power switches and other power management devices in a single package. The parts are available in three different operating supply voltage ranges from 2.7V to 6.9V and two different output voltage versions.

The LM3544M-L/NOPB is classified as a PMIC for power distribution switches, load drivers, and includes a variety of features such as:

• Support for input and output voltage regulation from 2.7V to 6.9V
• Minimum operating current of only 2.5mA for improved efficiency
• A 2% accurate current limit in both buck and boost configurations
• A 0.5c accuracy current limit in boost configurations
• Integrated synchronization to enable multiple devices to operate in a distributed power architecture
• Small size and easy-to-use evaluation board

The LM3544M-L/NOPB operates at a frequency of 250kHz and provides an efficient PWM buck-boost power management solution. It has an adjustable PWM switching frequency, as well as an adjustable on-time/off-time for the PWM converter with a minimum output current of 10mA. Its current limit provides protection against short circuits, over-current and over-temperature condition. The LM3544M-L/NOPB is available in a 5- by 5- millimeter (mm) device package and requires three external components, a MOSFET, inductor, and output capacitor.

The expanding mobile and portable device market has created a need for more advanced and efficient power management integrated circuits. The LM3544M-L/NOPB is a single channel PMIC that allows for efficient power management between the input voltage and load. Its unique design combines a buck and boost circuit, enabling the part to manage high power required by the load. The integrated features of this device ensure that it is able to provide reliable power management with minimum external components.

The LM3544M-L/NOPB is an ideal solution for battery powered applications including, digital cameras, cell phones and other portable consumer devices. It is capable of providing up to 3.4A of charge current for the battery, and up to 2.4A of load current. The LM3544M-L/NOPB also provides other design benefits, such as reduced power dissipation through its low quiescent current of 2.5mA, improved transient response, and reduced board space.

In summary, the LM3544M-L/NOPB is an advanced, highly efficient, single channel, high frequency synchronous PWM buck-boost power management integrated circuit (PMIC). It is designed for mobile and portable applications, providing efficient power management between the input voltage and load. It can provide up to 3A of charge current and 2A of load current, and its features enable it to provide reliable power management with minimum external components.