LMS8117AMPX-ADJ/NOPB

Current - Output:	1A
Base Part Number:	LMS8117
Supplier Device Package:	SOT-223
Package / Case:	TO-261-4, TO-261AA
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	--
PSRR:	60 ~ 75 dB (120Hz)
Current - Supply (Max):	10mA
Current - Quiescent (Iq):	5mA
Series:	--
Voltage Dropout (Max):	1.25V @ 1A
Voltage - Output (Max):	13.8V
Voltage - Output (Min/Fixed):	1.25V
Voltage - Input (Max):	15V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

The LMS8117AMPX-ADJ/NOPB is an easy to use Low Drop-Out (LDO) Linear Voltage Regulator designed for the Analog and Mixed-Signal (AMS) market segment. It is an adjustable voltage regulator that can provide up to 800 mA of output current over a wide range of adjustable output voltages. The LMS8117ampx-adj/nopb is designed to provide efficient and controlled low noise power to a wide range of loads and applications.

Application Fields

The LMS8117AMPX-ADJ/NOPB is suitable for many different power source applications. It is suitable for high-side and low-side loads of portable and embedded applications such as communications, handheld, gaming and automotive applications. The high input range makes it ideal for use with both DC and AC power supplies.The adjustable output voltage range allows the LMS8117AMPX-ADJ/NOPB to be used in various applications, such as powering microcontrollers, providing bias power for RF, audio and video amplifiers, powering mobile phones, and providing memory back-up in a variety of other embedded systems.

Features and Benefits

The LMS8117AMPX-ADJ/NOPB has a wide operating voltage range from 2.7V to 24V. It provides 800mA of output current, with very low output noise and excellent line and load regulation. It features both external and internal current limit protection, making it a safe and reliable choice for bulk current requirements.The LMS8117AMPX-ADJ/NOPB also features low quiescent current and very low drop-out voltage, as well as short-circuit protection and thermal shutdown. It also has over-voltage protection and is highly resistant to reverse-current diode.

Working Principle

The LMS8117AMPX-ADJ/NOPB works by regulating the output voltage of the power supply to a predefined output voltage. It uses a current-limited control circuit to achieve this, with a voltage reference and an operational amplifier driving a low-side pass-transistor, and a high-side transistor for current limiting.When the output voltage reaches its desired value, the current-limited pass transistor is turned on and current flows through the resistor/capacitor network, creating a stable output voltage. The current limiting feature is achieved by controlling the high side transistor, so that it allows the desired amount of current through, while limiting any over-current.

Conclusion

The LMS8117AMPX-ADJ/NOPB is an ideal voltage regulator solution for many different applications. Its adjustable voltage range, high output current, and low dropout voltage make it a suitable choice for powering many different devices. Its feature of current limiting makes it an ideal choice for a wide range of applications, from portable to embedded. The low quiescent current and high reverse-current diode resistance further enhance its suitability for many different applications.

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