LDL1117S50R

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Output Configuration:	Positive
Output Type:	Fixed
Number of Regulators:	1
Voltage - Input (Max):	18V
Voltage - Output (Min/Fixed):	5V
Voltage - Output (Max):	--
Voltage Dropout (Max):	0.6V @ 1.2A
Current - Output:	1.2A
Current - Quiescent (Iq):	500µA
PSRR:	87dB ~ 65dB (120Hz ~ 100kHz)
Control Features:	--
Protection Features:	Over Current, Over Temperature, Under Voltage Lockout (UVLO)
Operating Temperature:	-40°C ~ 125°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	TO-261-4, TO-261AA
Supplier Device Package:	SOT-223

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LDL1117S50R – A PMIC Voltage Regulator IC With Linear Working Principle

The LDL1117S50R is an integrated circuit (IC) or "chip" for use as a voltage regulator, a component of power management integrated circuits (PMICs). It is packaged in a small, made­to­order package called the ‘LLP’ that keeps the component compact, light and cost effective. The component is also available in special voltage ratings for niche applications, and builds on the benefits of linear regulator technology to offer low dropout and low noise.

Application & Working Principle

The LDL1117S50R is primarily designed for use as an adjustable voltage regulator in relatively low current applications such as: - High-end laptops - Tablets - Smartphones - Portable medical equipment - Portable multimedia players and - Consumer electronics

The component works by offering adjustable Step­Down (also known as ‘buck’) regulation and utilizes an internal power MOSFET device along with an internal linear regulator to provide a regulated output voltage.

The component works by passing a controllable stream of current through the internal MOSFET device, which is used to regulate the output voltage to the desired level. The IC also includes other features such as overvoltage protection, thermal warning and shutdown capability. This component is specifically designed to minimize the amount of power consumption and provide a high-efficiency power solution for a wide variety of applications.

The component also includes a number of features that make it highly suitable for use in sophisticated portable applications. These include a low noise linear regulator with programmable output voltage range, factory-programmed overvoltage protection, frequency compensation to reduce noise and current consumption, and support for dynamic voltage scaling.

The component also features current-limiting and thermal protection circuits to provide protection against overcurrent and/or overtemperature events. Furthermore, the component also has a wide input voltage range of 2.5V to 20V and a wide operating temperature range of -40°C to +85°C.

Features & Benefits:

The LDL1117S50R is a high-performance and feature-rich PMIC voltage regulator IC that provides a range of features and benefits with linear working principles. Some of these benefits include:

- Low Dropout (LDO) regulator: The component offers a low dropout or “LDO” regulator that can efficiently operate at input-to-output voltage differences as low as 350mV, allowing designers to use smaller, lighter and more cost-effective components. - Low noise linear regulator: The component also incorporates a noise-reducing linear regulator that minimizes digital noise while providing high efficiency at lower power levels.- Overvoltage protection: The component includes a factory-programmed overvoltage protection feature that will prevent the IC from being exposed to an excessive voltage.- Thermal protection: The IC also includes a thermal protection circuit that prevents the component from potentially damaging itself due to excessive operating temperature.- Wide input voltage range: The component also has an input voltage range of 2.5V to 20V, allowing for use in a wide range of applications.

The LDL1117S50R is also an ideal solution for designers who want a simple, versatile and cost-effective way to obtain a regulated output with low dropout, low noise and overvoltage protection.

Conclusion

The LDL1117S50R is a versatile PMIC voltage regulator IC that utilizes the benefits of linear working principles to provide users with a wide input voltage range, low dropout, low noise linear regulator, overvoltage protection and thermal protection. The component makes a great, cost-effective and simple choice of voltage regulator IC, due to its wide range of features and configuration possibilities.

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