LM8801TME-1.2/NOPB Integrated Circuits (ICs)

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The increasing power demands of electronic devices has given rise to more advanced power management integrated circuit (PMIC) like the LM8801TME-1.2/NOPB. In the widely-used family of DC-DC switching regulators, the LM8801TME-1.2/NOPB is a complete power management solution with its high current, low noise and low output voltage capability.

The LM8801TME-1.2/NOPB is ideal for powering applications in various industrial and consumer electronics such as microcontrollers, portable electronic devices, desktop PCs, telecom infrastructure, servers, etc., since the device provides high output current in the range of 2A at a controlled output voltage.(1)

The power supply of the LM8801TME-1.2/NOPB is a DC-DC converter, which is composed of a synchronous buck converter and a linear regulator. The buck converter uses pulse-width-modulation technique to regulate the output voltage, whereas the linear regulator uses closed-loop feedback technique to regulate the output voltage.

The buck converter in the LM8801TME-1.2/NOPB uses a duty cycle to regulate the output voltage. The duty cycle is the ratio of the on time to the total time. The duty cycle is determined by the voltage on the feedback input (FB) of the buck converter. The buck converter also has a clock input that is used to synchronize the switching of the transistors Q1 and Q2.

Once the duty cycle is determined, the buck converter switches the transistors Q1 and Q2 at the clock frequency. When Q1 is on and Q2 is off, the input voltage (Vin) is applied to the output inductor. When Q2 is on and Q1 is off, the stored energy in the output inductor is transferred to the output capacitor. As a result, the output voltage of the buck converter is regulated.

The linear regulator in the LM8801TME-1.2/NOPB is used to regulate the output voltage at the low load current. The linear regulator is essentially a voltage comparator with a feedback voltage on the FB pin and with a reference voltage on the REF pin. The output voltage of the linear regulator is compared periodically with the reference voltage and adjusted to maintain the output voltage.

The LM8801TME-1.2/NOPB is a versatile power management system which is suitable for various applications due its wide input voltage range, low output voltage capability, high output current rating, and low output voltage noise. The device also has a built-in thermal protection feature that prevents the device from overheating due to excessive current or load conditions. The LM8801TME-1.2/NOPB is also highly-efficient, consuming only 0.25W of power.

In conclusion, the LM8801TME-1.2/NOPB is an ideal power management solution for a variety of application fields due to its high current, low noise, and low output voltage capabilities. The device uses a combination of synchronous buck and linear distributor to regulate the output voltage of the power supply and its built-in thermal protection feature ensures the safety of the device in the event of excessive current or load conditions.

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