LT1763MPS8-5#PBF

Current - Output:	500mA
Base Part Number:	LT1763
Supplier Device Package:	8-SO
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Reverse Polarity
Control Features:	Enable
PSRR:	65dB (120Hz)
Current - Supply (Max):	16mA
Current - Quiescent (Iq):	75µA
Series:	--
Voltage Dropout (Max):	0.45V @ 500mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	5V
Voltage - Input (Max):	20V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tube

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Introduction

LT1763MPS8-5#PBF is a series of low-dropout (LDO) voltage regulator developed by Linear Technology Corporation. It is designed to provide a consistent and accurate output voltage from integrated circuit (IC) applications. It is a great choice for circuit designs involving the conversion of a DC input voltage to a stabilized output voltage in a wide range of current loads. This article will provide an overview of the technology behind the LT1763MPS8-5#PBF voltage regulator, its application field and working principle.

Overview

The LT1763MPS8-5#PBF is a advanced monolithic IC which requires very low minimum channel-to-channel isolation (<100 mV) and fast transient response (<25 ns). It is designed to provide a consistent and accurate output voltage regardless of variations in the input voltage and current. This series of voltage regulator is available in the output voltage range of 1.2V to 24V.The LT1763MPS8-5#PBF has an adjustable current limit of up to 50mA and contains several protection features including over-voltage protection, over-current protection, and reverse polarity protection. Additionally, it has an on-chip thermal shutdown which helps to protect its components by disabling the output voltage if the junction temperature reaches a certain level.

Application Field

The LT1763MPS8-5#PBF is widely used for powering the following applications:1. Digital signal processor (DSP)2. Networking and communications3. Automotive, industrial, and medical4. Portable electronic devices5. Battery-powered applications6. ARM-based products7. Mobile phones8. Automotive audio products

Working Principle

The LT1763MPS8-5#PBF is a linear regulator that utilizes a series pass transistor to regulate its output voltage. Its output voltage is directly proportional to the current flowing through an external sense resistor, which in turn depends on the input voltage.When the input voltage is higher than the output voltage, the series pass transistor is turned on and the current flows through the resistors and passes through the series pass transistor. This increases the output voltage. Similarly, when the input voltage is lower than the output voltage, the series pass transistor is turned off, and the current stops flowing through the resistor and the output voltage decreases.

Conclusion

The LT1763MPS8-5#PBF is an advanced, low-dropout voltage regulator that provides a consistent and accurate output voltage from integrated circuit applications. It is widely used in many applications due to its adjustable current limit, over-voltage/over-current protection, and thermal shutdown. Its working principle is based on a series pass transistor which controls the current flow through an external sense resistor in order to regulate the output voltage.

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