LP38841T-1.5

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LP38841T-1.5 is a voltage regulator from Texas Instruments, which falls in the category of PMIC (Power Management Integrated Circuit) - Voltage Regulators – Linear. It is specifically designed to handle a low voltage dropout (<0.3V) along with low output current (<1A) to maintain a steady, efficient and accurate output voltage.

LP38841T-1.5 can be used in a wide range of applications and products such as portable media players, gaming consoles, smart phones and digital cameras. It uses an external PNP pass transistor to boost the output current, a low on resistance MOSFET, and open drain MOSFET to provide fast transient response. In any electronic device, voltage monitoring is an essential task and this device precisely fits this requirement.

LP38841T-1.5 works by using the voltage difference between the input (Vin) and output (Vout) to regulate the voltage at the output pin. It reduces the incoming voltage to maintain a steady output voltage as specified. It has an on board voltage divider to sense the output voltage with the help of an external SPICE Transistor. The voltage divider ladder is used to produce a reference voltage, which is then compared to the output voltage at the differential sense pin.

When Vin is greater than the output voltage, the NPN pass transistor will be off and the output voltage remains low. When the input voltage is lower than the output voltage, the NPN pass transistor will be on and the output voltage will be supplied as per the set voltage. The output voltage is more stable due to a high gain error amplifier that is embedded in the IC, which accurately keeps the output voltage constant.

The LP38841T-1.5 also has high accuracy and low current consumption. It can provide an accurate voltage regulation of 0.3 % and low quiescent current of 0.3 uA. This helps to reduce power consumption and increases battery run time in portable media players, gaming consoles, smart phones and digital cameras.

LP38841T-1.5 features an advanced shutdown feature that can disconnect the load from the power supply if there is a malfunction or an unusual current consumption. This protects the device from power failure and provides safety for users. This is an essential feature for any PMIC device.

LP38841T-1.5 is perfect for low-power, low-voltage applications, offering efficient and accurate voltage regulation, high accuracy and low current consumption. Its advanced shutdown feature also offers protection from power failure, making it an ideal choice for any application requiring PMIC voltage regulators.

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