L4925

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Output Configuration:	Positive
Output Type:	Fixed
Number of Regulators:	1
Voltage - Input (Max):	28V
Voltage - Output (Min/Fixed):	5V
Voltage - Output (Max):	--
Voltage Dropout (Max):	0.6V @ 500mA
Current - Output:	500mA
Current - Quiescent (Iq):	360µA
Current - Supply (Max):	20mA
PSRR:	--
Control Features:	--
Protection Features:	Over Temperature, Short Circuit
Operating Temperature:	-40°C ~ 125°C
Mounting Type:	Through Hole
Package / Case:	Pentawatt-5 (Vertical, Bent and Staggered Leads)
Supplier Device Package:	5-PENTAWATT
Base Part Number:	L4925

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Introduction to L4925The L4925 is a linear voltage regulator, a type of voltage regulator typically used in power management applications. It is manufactured by STMicroelectronics, a global semiconductor and integrated circuits supplier. The device features a wide input voltage range, low quiescent current, and excellent transient response in both step-up and step-down modes. The L4925 is suitable for a variety of applications, from lighting and motor control to power supplies.Features and Benefits of L4925The L4925 is an adjustable voltage regulator with a maximum output current of 500mA and an input voltage range from 3V to 32V. It is protected from over-temperature and reverse-current, making it suitable for use in harsh environments. The device also features a low operating quiescent current, low-noise operation, and is available in a small footprint package.In addition, the L4925 is able to operate in both step-up and step-down modes, enabling it to provide high output accuracy, while delivering a fast transient response. This makes the device suitable for applications where accuracy and efficiency are critical.Applications of L4925The L4925 is ideally suited for use in a variety of power management applications, including DC/DC step-up and step-down regulators, battery chargers, LED drivers, LED lighting, motor control and power supplies.The device is also suitable for use in automotive systems, as it is capable of handling spikes and transients. In addition, its low quiescent current makes it an ideal choice for battery powered applications.Working Principle of L4925The L4925 operates on a linear voltage regulator principle. The device uses an internal MOSFET switch controlled by a Voltage Regulating Loop (VRL). The VRL is able to adjust the MOSFET duty cycle, varying the output voltage accordingly.When the output voltage exceeds the set-point, the duty cycle is automatically reduced, resulting in a decrease in output voltage. Conversely, when the output voltage is below the set-point, the duty cycle is increased, resulting in an increase in output voltage.ConclusionThe L4925 is a linear voltage regulator designed for a variety of power management applications. It features a wide input voltage range, low quiescent current, and excellent transient response in both step-up and step-down modes. The L4925 is capable of providing high accuracy and efficiency, while its low quiescent current makes it ideal for use in battery powered applications. The device operates on a linear voltage regulator principle, using a VRL to adjust the MOSFET duty cycle.

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