MAX8645XETI+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High-efficiency step-down DC-DC converter - Low quiescent current - Wide input voltage range - Adjustable output voltage - Overcurrent and overtemperature protection - Small package size

Package: 28-pin TQFN (Thin Quad Flat No-Lead) package

Essence: The MAX8645XETI+ is a power management IC designed for high-efficiency step-down conversion of input voltages to adjustable output voltages.

Packaging/Quantity: The MAX8645XETI+ is available in a 28-pin TQFN package. It is typically sold in reels of 2500 units.

Specifications

Input Voltage Range: 4.5V to 28V
Output Voltage Range: 0.6V to VIN
Maximum Output Current: 2A
Quiescent Current: 25µA (typical)
Switching Frequency: 1MHz
Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX8645XETI+ has a total of 28 pins. The pin configuration is as follows:

VIN: Input voltage pin
GND: Ground pin
SW: Switching node connection
FB: Feedback voltage pin
EN: Enable pin
SS/TRK: Soft-start/tracking pin
PGND: Power ground pin
LX: Inductor connection
VCC: Supply voltage pin
AGND: Analog ground pin
COMP: Compensation pin
BST: Bootstrap capacitor connection
SS/TRK: Soft-start/tracking pin
PGND: Power ground pin
LX: Inductor connection
VCC: Supply voltage pin
AGND: Analog ground pin
COMP: Compensation pin
BST: Bootstrap capacitor connection
SS/TRK: Soft-start/tracking pin
PGND: Power ground pin
LX: Inductor connection
VCC: Supply voltage pin
AGND: Analog ground pin
COMP: Compensation pin
BST: Bootstrap capacitor connection
SS/TRK: Soft-start/tracking pin
PGND: Power ground pin

Functional Features

High-efficiency step-down DC-DC conversion
Adjustable output voltage for various applications
Overcurrent and overtemperature protection for enhanced safety
Low quiescent current for power-saving operation
Wide input voltage range allows compatibility with different power sources
Small package size enables space-constrained designs

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption - Adjustable output voltage provides flexibility in application - Overcurrent and overtemperature protection ensure device safety - Wide input voltage range allows for versatile usage - Small package size saves board space

Disadvantages: - Limited maximum output current (2A) - Higher cost compared to some alternative models

Working Principles

The MAX8645XETI+ is a step-down DC-DC converter that uses a high-frequency switching regulator to efficiently convert the input voltage to a lower, adjustable output voltage. It employs pulse-width modulation (PWM) control to regulate the output voltage. The IC incorporates various protection features such as overcurrent and overtemperature protection to safeguard the device and connected components.

Detailed Application Field Plans

The MAX8645XETI+ is suitable for a wide range of applications, including but not limited to: - Portable electronic devices - Battery-powered systems - Industrial equipment - Automotive electronics - Telecom infrastructure

Detailed and Complete Alternative Models

MAX8646XETI+: Similar to the MAX8645XETI+, but with a higher maximum output current of 3A.
MAX8647XETI+: Step-down DC-DC converter with integrated power switches and synchronous rectification for improved efficiency.
MAX8648XETI+: Dual-phase step-down DC-DC converter for higher power applications.

These alternative models offer similar functionality to the MAX8645XETI+ but may have different specifications or additional features to suit specific application requirements.

In conclusion, the MAX8645XETI+ is a high-efficiency step-down DC-DC converter IC designed for various power management applications. Its adjustable output voltage, small package size, and protection features make it suitable for a wide range of electronic devices and systems.

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MAX8645XETI+ v technických řešeních

Sure! Here are 10 common questions and answers related to the application of MAX8645XETI+ in technical solutions:

Q: What is the MAX8645XETI+? A: The MAX8645XETI+ is a high-efficiency, synchronous step-down DC-DC converter with integrated power switches.
Q: What is the input voltage range of the MAX8645XETI+? A: The input voltage range of the MAX8645XETI+ is typically between 4.5V and 28V.
Q: What is the output voltage range of the MAX8645XETI+? A: The output voltage range of the MAX8645XETI+ can be programmed from 0.6V to 5.5V.
Q: What is the maximum output current of the MAX8645XETI+? A: The maximum output current of the MAX8645XETI+ is typically 2A.
Q: Does the MAX8645XETI+ have built-in protection features? A: Yes, the MAX8645XETI+ includes overcurrent protection, thermal shutdown, and undervoltage lockout for enhanced system reliability.
Q: Can the MAX8645XETI+ operate in a wide temperature range? A: Yes, the MAX8645XETI+ is designed to operate in a temperature range of -40°C to +85°C.
Q: Is the MAX8645XETI+ suitable for battery-powered applications? A: Yes, the MAX8645XETI+ is well-suited for battery-powered applications due to its low quiescent current and high efficiency.
Q: Does the MAX8645XETI+ support adjustable switching frequency? A: Yes, the MAX8645XETI+ allows for adjustable switching frequency between 300kHz and 2.2MHz.
Q: Can the MAX8645XETI+ be used in automotive applications? A: Yes, the MAX8645XETI+ is automotive-grade and can be used in various automotive systems.
Q: What package does the MAX8645XETI+ come in? A: The MAX8645XETI+ is available in a compact 16-pin TQFN package.

Please note that these answers are general and may vary depending on the specific application and requirements. It's always recommended to refer to the datasheet and consult with the manufacturer for detailed information.