MAX6845UKD0+T

Product Overview

Category: Integrated Circuit (IC)
Use: Voltage Regulator
Characteristics: Low-dropout, high-current, adjustable voltage regulator
Package: SOT-23-5
Essence: Provides stable and regulated output voltage for various electronic devices
Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

Input Voltage Range: 2.5V to 6.5V
Output Voltage Range: 1.25V to 5.5V
Maximum Output Current: 500mA
Dropout Voltage: 120mV at 500mA
Line Regulation: ±0.05% typical
Load Regulation: ±0.1% typical
Quiescent Current: 80µA typical
Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX6845UKD0+T has a total of five pins:

GND: Ground pin
FB: Feedback pin for adjusting the output voltage
EN: Enable pin for turning the regulator on/off
VIN: Input voltage pin
VOUT: Output voltage pin

Functional Features

Low dropout voltage ensures efficient power conversion
High output current capability allows for powering a wide range of devices
Adjustable output voltage provides flexibility in different applications
Excellent line and load regulation for stable output voltage under varying conditions
Low quiescent current minimizes power consumption in standby mode
Thermal shutdown and current limit protection for enhanced reliability

Advantages

Compact SOT-23-5 package enables space-saving designs
Wide input voltage range accommodates various power sources
Adjustable output voltage suits different system requirements
High output current capability supports demanding loads
Low dropout voltage minimizes power dissipation

Disadvantages

Limited output current compared to higher-power regulators
SOT-23-5 package may require additional heat sinking for high-power applications

Working Principles

The MAX6845UKD0+T is a low-dropout voltage regulator that maintains a stable output voltage despite variations in input voltage and load conditions. It utilizes a feedback mechanism to adjust the output voltage based on the reference voltage and the resistor divider network connected to the FB pin. The enable pin allows for turning the regulator on or off, conserving power when not needed. The device incorporates thermal shutdown and current limit protection to safeguard against excessive temperature and current levels.

Detailed Application Field Plans

The MAX6845UKD0+T finds applications in various electronic systems requiring regulated power supply. Some potential application fields include:

Battery-powered devices: Portable electronics such as smartphones, tablets, and wearable devices can benefit from the low dropout voltage and adjustable output voltage of the MAX6845UKD0+T.
Industrial automation: Control systems, sensors, and actuators often require stable and reliable power sources, making the MAX6845UKD0+T suitable for these applications.
Automotive electronics: With its wide input voltage range and robust performance, the MAX6845UKD0+T can be used in automotive applications like infotainment systems, lighting controls, and engine management units.

Detailed and Complete Alternative Models

LM1117-ADJ: Adjustable voltage regulator with similar specifications and package options.
LT1763-ADJ: Low dropout voltage regulator offering adjustable output voltage and high output current capability.
TPS7A4700: High-current, adjustable voltage regulator with excellent line and load regulation.

These alternative models provide similar functionality and can be considered as substitutes for the MAX6845UKD0+T in various applications.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MAX6845UKD0+T v technických řešeních

Sure! Here are 10 common questions and answers related to the application of MAX6845UKD0+T in technical solutions:

Q: What is the MAX6845UKD0+T? A: The MAX6845UKD0+T is a voltage monitor and reset IC designed for use in microprocessor-based systems.
Q: What is the purpose of the MAX6845UKD0+T? A: The MAX6845UKD0+T provides power supply monitoring and reset generation functions to ensure proper operation of the microprocessor.
Q: How does the MAX6845UKD0+T monitor the power supply? A: It monitors the voltage level of the power supply and generates a reset signal if the voltage falls below a specified threshold.
Q: Can the MAX6845UKD0+T be used with different power supply voltages? A: Yes, it can be used with a wide range of power supply voltages, typically from 1.6V to 5.5V.
Q: What is the typical reset threshold voltage of the MAX6845UKD0+T? A: The typical reset threshold voltage is 4.63V, but it can be adjusted using external resistors.
Q: Does the MAX6845UKD0+T have any additional features? A: Yes, it has an adjustable reset timeout period and a manual reset input for system testing or initialization.
Q: Can the MAX6845UKD0+T be used in battery-powered applications? A: Yes, it has a low quiescent current consumption and can be used in battery-powered systems.
Q: Is the MAX6845UKD0+T suitable for automotive applications? A: Yes, it is designed to meet the requirements of automotive applications and has a wide operating temperature range.
Q: Can multiple MAX6845UKD0+T devices be used in the same system? A: Yes, multiple devices can be used to monitor different power supplies or provide redundancy in critical systems.
Q: What package does the MAX6845UKD0+T come in? A: It comes in a small 8-pin µMAX package, which is suitable for space-constrained applications.

Please note that these answers are general and may vary depending on the specific application and requirements.