STPCH16MBGR

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The STPCH16MBGR is an integrated low dropout voltage regulator (LDO) chip that is designed for applications where extremely low quiescent current and wide intermediate power supply range are required. This device combines an ultra-low quiescent current LDO with a power switch mode conversion circuit electrically isolated from the load and protected from short circuit current. The device includes a precise voltage reference, very stable over temperature, and an adjustable 1A/2A load current limit circuit.

The STPCH16MBGR works by using the input voltage to power an internal charge pump that generates a voltage of twice the input voltage. The double voltage is used, along with a toggle circuit, to drive a low dropout regulator through a switch which increases the efficiency and allows a wide input voltage range. This double voltage is also used to provide a protected output current limit by dissipating excess power in the form of heat. The chip also has an adjustable resistance and an LED indicator that will light up when the output voltage exceeds a certain level.

The STPCH16MBGR is a highly flexible device that is suitable for a wide range of applications including personal digital assistant (PDA), cellular, audio and video, gaming and electronic instruments. For example, in PDA applications such as calculators, it can be used to provide a precisely regulated power supply for the display and other sensitive components. In gaming consoles and computers, the STPCH16MBGR can be used to provide a stable supply voltage even under extreme load conditions. Finally, in electronic instrumentation and other test equipment, the STPCH16MBGR can provide a very low noise power supply suitable for accurate readings.

As its name suggests, the STPCH16MBGR is a precision LDO with excellent output voltage regulation across a wide input range and very high line and load regulation. It also has low noise characteristics, low dropout performance, low quiescent current and low in-rush current. The output voltage can be accurately adjusted via an internal reference voltage and can be specified using a resistor divider on the adjust pin. The device also features an additional safety feature in the form of an overvoltage protection circuit which limits the output voltage to a preset level.

The STPCH16MBGR is an ideal choice for applications that require precise voltage regulation, low dropout performance and low quiescent current. It is also very efficient, reliable and cost effective. The device is primarily targeted at mobile electronic devices, especially in the areas of cellular phones, PDA’s and gaming consoles but it is also suitable for other general-purpose power supply applications.

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