LP3470IM5X-4.8

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Open Drain or Open Collector
Reset:	Active Low
Reset Timeout:	1 ms Minimum
Voltage - Threshold:	4.8V
Operating Temperature:	-40°C ~ 85°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	SC-74A, SOT-753
Supplier Device Package:	SOT-23-5
Base Part Number:	LP3470

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LP3470IM5X-4.8 application field and working principle

PMIC - Supervisors (power management integrated circuit – supervisors) are an important group of components in the electronics industry. They provide the main power supply for electronic systems by regulating voltage and current. The LP3470IM5X-4.8 is one of the most popular PMIC supervisors on the market today, designed to provide a reliable power supply for electronic systems that require high current capacity and a wide input voltage range.It is a highly integrated digital power supply, providing up to 60V operating voltage with up to 4.8A output current. It is also equipped with two regulated 5V DC/DC converters, two low dropout voltage regulators (LDOs) with wide output voltage range, and a wide variety of voltage and current protection features. The integrated precision current sensing comparator provides programmable over-current protection for both the DC/DC and LDO stages.The LP3470IM5X-4.8 also provides a high-performance, low-cost solution with a variety of applications such as powering processors and DSPs, general-purpose power supply, peripheral power supplies, automotive power supplies, and for protection and control of power supply systems.The LP3470IM5X-4.8 features a high-performance buck converter that supports up to a 4.8A maximum output current. It can provide up to 60V input voltage, enabling it to supply power to a wide variety of digital systems. An internal linear regulator is used to generate the logic power supply.The buck converter is equipped with a wide input voltage range (2.5V to 60V) and can operate with input voltages as low as 1.5V above the output voltage. This low start-up voltage allows the LP3470IM5X-4.8 to be powered from an external 1.5V battery or an on-board supercap.The buck regulator supports a 3.3V or 4.2V output voltage with programmable current limit and is controlled either via an external synchronous MOSFET or an internal linear regulator. The synchronized MOSFET enables fast transient response, while the internal regulator helps to reduce overall cost and power consumption.The LP3470IM5X-4.8 also features two low dropout (LDO) voltage regulators designed to provide a stable, regulated voltage supply to internal components. They are equipped with a wide output voltage range (0.8V to 5.4V) and current limit as well as an adjustable soft-start for an adjustable power supply turn-on time.The two voltage regulators of the LP3470IM5X-4.8 are also protected with over-current, over-temperature, and under-voltage protection. In addition, an adjustable switch-mode power supply (SMPS) with a wide output voltage range (1.8V to 4.5V) is available, providing a very low quiescent current for extremely low power consumption.The LP3470IM5X-4.8 is designed to meet user needs in terms of flexibility and performance. The integrated components enable the user to set different operating conditions, while the protection features provide reliable functionality. Moreover, the device is backed by a wide range of optional evaluation modules and reference designs to help customers quickly develop and test design ideas.In conclusion, the LP3470IM5X-4.8 is an ideal power manager for electronic systems that require high-current capability and a wide input voltage range. It provides the user with an integrated solution to a wide range of applications, with the added benefits of precision current sensing, power saving technologies and voltage and current protection.

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