L5958SM

Series:	--
Packaging:	Tube
Part Status:	Active
Applications:	Converter, Car Audio System
Voltage - Input:	4.5 V ~ 18 V
Number of Outputs:	4
Voltage - Output:	1.8V, 3.3V, 5V, 8.5V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	27-Flexiwatt (Formed Leads)
Supplier Device Package:	27-Flexiwatt (SMD)
Base Part Number:	L5958

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PMIC - Voltage Regulators - Special Purpose

The L5958SM is a special-purpose, adjustable voltage regulator of the three-terminal type made by STMicroelectronics. It is designed with a wide range of features and functions, including an adjustable output voltage that can be set at any level within the range of 0.1 V to 8.0 V. It is also equipped with an adjustable current limit that can be set at any level within the range of 0.1 mA to 1.2 A. The device also features a voltage monitor output that is programmable over the range of 0.1 V to 8.0 V, and a current monitor output that can be set at any level within the range of 0.1 mA to 1.2 A.

Application Field and Working Principle

The L5958SM is ideal for applications requiring accurate regulation and control of voltage outputs, as well as for applications that require a low input voltage, high current or precision current limit. The device is also suitable for step-down and step-up operation, and for proportional control applications with the voltage monitor output and the current monitor output.The L5958SM operates with the principle of control by linear error amplifier. With its negative feedback topology and well-selected circuit components, the device is an excellent choice for voltage regulation applications. The voltage regulator level is set by a reference voltage, and by a feedback signal from the output of the regulator that determines how well the voltage is regulated. The output voltage of the regulator stays within the required range, in order to ensure a stable output voltage and current.The L5959SM employs a power pass element, a transistor, to control the output current and monitor the output voltage. The power pass element acts as the main conduction path, and at the same time, provides the control current to the error amplifier. The output voltage is set by adjusting the current sense resistor, while the current limit is regulated by the two resistors connected to the current limit pin. To reduce power losses, the L5959SM is designed with a low quiescent current.

Practical Uses

The L5958SM can be used for various applications including notebook processors and displays, automotive power supplies, appliances, and consumer electronics. The device has various applications in computer and consumer electronics, automobiles, and commercial and industrial equipment, such as servers, cellphones, PDAs, cameras, consumer electronics, aircraft, military and medical equipment.The device is also suitable for step-down and step-up operations and for proportional control applications. In step-down operation, the device converts a higher input voltage to a lower output voltage, and in step-up operation, it converts a lower input voltage to a higher output voltage. The device is also very suitable for proportional control applications, as it can be used to accurately control the output current and voltage.The L5958SM is also suitable for applications where a low input voltage, high current and precision current limit are required. The device can be used in notebooks, displays, and other applications that require accuracy over a wide range of operating temperatures.

Advantages

The L5958SM has several advantages over other voltage regulators. It has a wide operating range and is designed to operate in temperatures ranging from -40°C to +85°C. It also has an adjustable output voltage and current limit that can be set to any level within the range of 0.1 V to 8.0 V and 0.1 mA to 1.2 A, respectively. This gives it a wide range of applications.The device also has good energy efficiency, as it has a low quiescent current. This helps to reduce the total power dissipation of the device, making it a more energy-efficient option.Finally, the L5959SM is versatile and can be used for both step-down and step-up operations, as well as for proportional control applications. This makes it ideal for use in a wide range of applications.In conclusion, the L5958SM is a special-purpose, adjustable voltage regulator of the three-terminal type. It is designed with a wide range of features and functions, making it an ideal choice for applications requiring accurate regulation and control of voltage outputs, as well as low input voltage, high current and precision current limit requirements. The device is also suitable for step-down and step-up operations, and for proportional control applications. With its low quiescent current and wide operating range, it is a highly energy-efficient choice for a wide range of applications.

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