LP8345CLD-1.8/NOPB

Current - Output:	500mA
Base Part Number:	LP8345
Supplier Device Package:	6-WSON (2.92x3.29)
Package / Case:	6-WDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	--
PSRR:	55dB (120Hz)
Current - Quiescent (Iq):	50µA
Series:	--
Voltage Dropout (Max):	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.8V
Voltage - Input (Max):	10V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

LP8345CLD-1.8/NOPB Application Field and Working Principle

LP8345CLD-1.8/NOPB is a positive voltage regulator made for the PMIC (Power Management IC) voltage regulator linear category. It is an integrated circuit that is capable of meeting the end user\'s needs required for many applications like system power management as well as distribution and sequencing. It has been designed to specifically function with low voltage systems while not having to worry about security and reliability issues.

Features

LP8345CLD-1.8/NOPB has some of its key features as: • It allows for low voltage operation, with working voltage of 0.8-3.3V.• Designed for a single output mode, considering two modes for supplying power (adjusted or constant voltage).• Its output current is up to 800mA, with a maximum continuous output current of 600mA.• It has a precision of ±2.5%.• Its operating junction temperature range is -40 to 125℃. • This IC has an active low enable input.• It has built-in power-on reset and low battery reset.• Available in a DFN5-5L 2x2 package.

Applications

This voltage regulator provides system power management and managing power distribution, sequencing, and supply voltage for the required system. LP8345CLD-1.8/NOPB is suitable for a variety of applications like smart pocket devices, personal navigation systems, wireless controllers, gaming consoles, and portable media hubs.

Working Principle

The LP8345CLD-1.8/NOPB works as an adjustable or constant output for providing positive voltage for the system. It consists of a voltage reference, error amplifier, an on-chip power transistor, and current limit circuitry. The reference voltage is compared with voltage on FB (feedback) pin containing feedback voltage and output error amplifier. If a difference is present, it will drive power internal NPN Power MOSFET to increase or decrease current flow, thus adjusting VOUT to achieve the FB voltage. The current limit circuitry on the chip makes sure the output current is always within the set limits. In case of higher current, the current limit will clamp it and provide thermal protection as well. This output voltage can be adjusted to a reference voltage by connecting a resistor divider between the FB pin and ground (GND). Once this voltage is set, the error amplifier will monitor it and work to maintain it as long as the feedback voltage remains above the UVLO (under voltage lockout) threshold.In short, the working of LP8345CLD-1.8/NOPB involves constantly monitoring the feedback voltage and adjusts the power MOSFET to maintain voltage as closely as possible.

Conclusion

LP8345CLD-1.8/NOPB is an adjustable and constant output positive voltage regulator for PMIC. It has been designed for low voltage applications and meets demands of modern end user needs, like pocket devices, navigation systems and gaming consoles. Its working principle involves monitoring the feedback voltage and adjusting power MOSFET to maintain it as close as possible to the reference voltage. This voltage regulator has a high current capacity and is highly reliable.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description