AP139-28WG-7

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PMIC Voltage Regulators are an important part of circuit and system design. The use of voltage regulators in different applications and circuits can be seen nowadays in many products like computers, automotive electronics and portable devices. Voltage regulators help ensure that the correct amount of power is delivered to the circuits and components in a controlled manner.

The AP139-28WG-7 is a low-noise linear voltage regulator from Diodes Incorporated, targeted for high-end computing, telecommunications and DC/DC industry applications. It is designed to provide a reliable and cost-effective solution for regulating low voltages with power requirements up to 28 W. This device can output an adjustable voltage ranging from 1.2 V to 5 V while generating very low levels of output noise.

The AP139-28WG-7 is ideal for high-end computing and telecommunications applications where noise-sensitive components must be powered. It meets the stringent requirements of many noise sensitive applications as it provides a highly stable output voltage, excellent load regulation (< 1%), ultra-low output noise (<5uV RMS at 1kHz) and a low dropout voltage of 290mV. Moreover, this voltage regulator features short-circuit and thermal protection, as well as multiple output configurations such as single, dual and triple.

The AP139-28WG-7 integrated circuit can be used in a wide range of applications, including low-noise power management for notebook personal computers, servers and telecom base stations, high-end point-of-load DC/DC converters, automotive applications, IoT applications and medical devices. Additionally, this voltage regulator has been designed specifically to meet the increasing requirements for high integration, small form factor and low power dissipation.

The working principle of the AP139-28WG-7 voltage regulator is based on a linear regulator topology. It employs a linear ‘error amplifier’ in order to compare the output voltage to a reference voltage and control the output voltage accordingly. A series circuit of switch, comparator and regulator integrated circuit makes up the rest of the linear regulator. The switch is used to control the amount of current that is flowing in the circuit while the comparator keeps the output voltage at the desired level by adjusting the switch resistance. Finally, the regulator monitors and adjusts the output voltage in order to keep it within a certain range.

In conclusion, the AP139-28WG-7 is an integrated linear voltage regulator from Diodes Incorporated. It can provide low noise output voltage and excellent load regulation for a wide variety of applications, such as low-noise power management for notebook personal computers, servers and telecom base stations, high-end point-of-load DC/DC converters, automotive applications, IoT applications and medical devices. This voltage regulator is based on a linear regulator topology, employing a linear error amplifier in order to compare the output voltage to a reference voltage and control the output voltage accordingly.

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