SP6641AEK-L-5-0

Voltage - Input (Max):	4.5V
Supplier Device Package:	SOT-23-5
Package / Case:	SC-74A, SOT-753
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	--
Current - Output:	1.5A (Switch)
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	5V
Series:	--
Voltage - Input (Min):	0.5V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Boost
Output Configuration:	Positive
Function:	Step-Up
Part Status:	Discontinued at Digi-Key
Packaging:	Bulk

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PMIC - Voltage Regulators - DC DC Switching Regulators

A PMIC is a voltage regulator which helps to provide power management and control for a variety of devices. The power management integrated circuit (PMIC) SP6641AEK-L-5-0 is a synchronous low-side switching PMIC that is capable of delivering up to 5A of continuous output current, over a wide input voltage range of 2.5V to 24V.The SP6641AEK-L-5-0 belongs to a family of high-performance DC-DC synchronous buck or step-down switching regulators. It is designed for high-current, dynamic load applications, and can handle up to 5A of load current with uniformly low-side on-resistance and an adjustable current limit. Its switching frequency is adjustable within a wide range, thereby allowing the user to optimize their system\'s efficiency. The device also features over-temperature, over-current, and over-voltage protection to ensure reliability.The SP6641AEK-L-5-0 provides an adjustable output up to 5A. The output voltage is programmable by a single external resistor. An enable pin provides shutdown control, and the output voltage is monitored with an external voltage divider, which can also be used to provide an external sense function. Soft start times are also adjustable via an external capacitor.The SP6641AEK-L-5-0 is suitable for a number of applications, including notebooks, tablet computers and other consumer products that require an adjustable output, along with high efficiency and constant current loading capability. Its output voltage could be adjusted and set to a higher voltage than the input voltage for applications such as hot-swapping and battery charging.The SP6641AEK-L-5-0 also makes it ideal for use in industrial power supplies, hand-held electronics and other devices which have widely varying supply voltage, thermal or load variations. Its switch-on time and current-sensing capabilities are also suitable for powering high-current, low-voltage systems such as those found in automotive, telecom and avionic applications.The SP6641AEK-L-5-0 works by regulating the amount of current that it delivers to the load. It consists of two discrete power stages, a power FET and a synchronous buck regulator IC. The power FET is the main switch, and is responsible for turning on and off the current flow to the load. The synchronous buck regulator IC monitors and maintains the output voltage.The switch closes or opens based on the input signal from the buck regulator IC, which then adjusts its output voltage based on the signal from the output voltage sense pin. The output voltage is regulated to a precision of ±2.5% on the buck regulator IC, ensuring that the load is receiving a steady, low-noise voltage supply.The SP6641AEK-L-5-0 also has built-in features to ensure that the device is protected against various overload situations, such as short-circuits, over-voltage faults, and over-currents. A temperature sense circuit is also included, which will reduce the output voltage when temperatures exceed certain limits, providing additional protection to the system.In summary, the SP6641AEK-L-5-0 is an efficient, adjustable, and protected DC-DC synchronous buck switching regulator, designed for high-power, dynamic load applications. Its high current capabilities, adjustable output voltage, and integrated protection features make it ideal for powering a variety of applications from industrial power supplies to notebooks and hand-held electronics.

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