LM27213SQ/NOPB

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LM27213SQ/NOPB is a DC DC switching controller designed and developed by Texas Instruments, a leading management information technology company. The controller is a Voltage Regulators / PMIC (power management integrated circuit) designed to used in applications such as portable computers and other low-power electronics.

The LM27213SQ/NOPB operates with an input voltage range from 4.1V to 15V, supporting 2A output current. The switching frequency range is from 300kHz to 1MHz, allowing for precise adjustment of the output voltage or frequency. It has a wide range of features, with an internal 66mΩ switch, 50mA low-side Mosfet driver, and 4 ~ 20mA over-current protection.

The LM27213SQ/NOPB is a high-efficiency power converter offering the highest levels of efficiency for voltage conversion applications. It achieves excellent load regulation, output ripple and transient response at vehicle start-up required by automotive, IoT, battery and industrial applications.

In terms of working principle, the LM27213SQ/NOPB starts when the power source is connected and supplies a maximum current demand of 2A. When the voltage is connected, an internal voltage reference sets the output voltage. The hysteretic switching controller then operates the power MOSFET switching periodically at fixed frequencies to control the output voltage and current.

When the power demand is constant, the output voltage can be adjusted by the feedback voltage selected by external resistors. The internal comparator evaluates the feedback voltage and the constant 1.21V reference and opens or closes the power MOSFET switch as necessary in order to maintain a reliable output voltage.

The LM27213SQ/NOPB includes several features to protect against short circuits, overloads, over-voltages, thermal-shutdown and current-limit. This makes it an ideal solution for applications that require reliable, stable and efficient power management.

In conclusion, LM27213SQ/NOPB is a high-efficiency, low-cost DC DC switching controller designed for use in vehicle start-up, mobile, Internet of Things, battery and industrial applications. Its internal voltage reference, wide voltage range, hysteretic switching controller, and various protection features make it an ideal solution for reliable, stable and efficient power management.

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