SA317MBDTRKG

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As a linear voltage regulator in PMIC (Power Management Integrated Circuit), SA317MBDTRKG is widely used in automotive, consumer and industrial fields. More specifically, it is applied to the smart phone, tablet, notebook, LCD TV, Wi-Fi router, game console and other consumer electronics. Besides, the SA317MBDTRKG also has many power-related products employed in the manufacturing, medical and automotive industries.

The SA317MBDTRKG is a three-terminal adjustable regulator, which works along with a 1.2V to 5.5V voltage supply and a resistive voltage divider, so as to provide a wide range of voltage adjustment from-2V to -24V. Its main features include a high input voltage up to 42V, a low output voltage down to -24V, high output current -- up to 800mA at -24V and 360mA at -2V, power-good signal output, very low output impedance and very low noise. It is basic a self-contained voltage regulator based linear voltage regulator, working with fixed output voltage and a resistive voltage divider.

The basic working principle of a linear voltage regulator lies in comparing the output voltage feedback signal with reference voltage, so as to maintain the output voltage relatively constant. In the process, the linear voltage regulator needs to transfer the input voltage to output voltage. This can be achieved by a linear regulator, which has two transistors: one is a pass transistor, the other is a control integrated circuit (IC). When the input voltage is higher than the output voltage, the pass transistor acts like a short-circuit, so the electricity flows from the input to the output. On the contrary, when the input voltage is lower than the output voltage, the pass transistor acts like an open-circuit, so no electricity will flow from the input to the output.

The SA317MBDTRKG features the following features to ensure the voltage stability and performance: current line limiting function; built-in thermal protection circuit; built-in automatic gain control circuit to maintain high output voltage accuracy; low voltage drop; low output noise; low external component costs. Besides, the device has very low input and output impedance, high ripple rejection rate and high power supply rejection rate. Furthermore, when the power supply is significantly low, the device can provide fast response time and thus protect the circuit.

The SA317MBDTRKG provides a high output voltage accuracy and a wide range of current output. It can be applied in a wide variety of environments, such as automotive, medical, industrial, consumer and commercial applications. The device is also used for power supply for projectors and displays, for charging and discharging batteries, for powering LED lighting, for generating various computer related power supplies, and for producing different kinds of switch modes. Its linear voltage regulator feature makes it well suited for multiple power supply applications and it can be used in very small space.

In conclusion, the SA317MBDTRKG is a linear voltage regulator that can be used in a wide variety of environments and applications. It is equipped with a high input voltage up to 42V, a low output voltage down to -24V and high output current -- up to 800mA at -24V and 360mA at -2V. Its low input and output impedance, high ripple rejection rate and high power supply rejection rate make it very suitable for many power supply applications. Moreover, the device also features built-in thermal protection circuit, automatic gain control circuit and other features to ensure the stability and performance.

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