MAX8903HETI+T

Product Overview

Category: Integrated Circuit (IC)
Use: Power Management
Characteristics: High Efficiency, Low Power Consumption
Package: 28-TQFN (4x4)
Essence: Voltage Regulator
Packaging/Quantity: Tape & Reel, 2500 pieces per reel

Specifications

Input Voltage Range: 2.7V to 5.5V
Output Voltage Range: 0.6V to 3.6V
Output Current: Up to 1.5A
Quiescent Current: 30µA (typical)
Switching Frequency: 2MHz
Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX8903HETI+T has a total of 28 pins. The pin configuration is as follows:

EN
FB
AGND
LX
SW
PGND
VOUT
VIN
BST
SS
COMP
ISET
VREF
GND
VCC
PGOOD
THERM
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC

Functional Features

High efficiency voltage regulation for portable devices
Low power consumption for extended battery life
Integrated power switches and control circuitry
Overcurrent and overtemperature protection
Soft-start and soft-stop functionality
Adjustable output voltage and current limit

Advantages and Disadvantages

Advantages: - High efficiency leads to longer battery life - Compact package size for space-constrained applications - Integrated protection features enhance device reliability - Adjustable output voltage and current limit provide flexibility

Disadvantages: - Limited output current compared to some other models - Higher cost compared to basic linear regulators

Working Principles

The MAX8903HETI+T is a voltage regulator IC that efficiently converts input voltage to a regulated output voltage. It utilizes integrated power switches and control circuitry to achieve high efficiency and low power consumption. The device incorporates various protection features such as overcurrent and overtemperature protection, ensuring safe operation under different conditions. Soft-start and soft-stop functionality prevent abrupt voltage changes during power-up and power-down sequences. The output voltage and current limit can be adjusted to meet specific application requirements.

Application Field Plans

The MAX8903HETI+T is suitable for a wide range of portable electronic devices, including smartphones, tablets, digital cameras, and portable media players. Its high efficiency and low power consumption make it ideal for battery-powered applications where maximizing battery life is crucial. The adjustable output voltage and current limit allow for customization based on the specific power requirements of the target device.

Alternative Models

MAX8902AETI+T
MAX8904CETI+T
MAX8905AETI+T
MAX8906BETI+T
MAX8907AETI+T

These alternative models offer similar functionality and characteristics to the MAX8903HETI+T, providing options for designers based on their specific needs.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MAX8903HETI+T v technických řešeních

Sure! Here are 10 common questions and answers related to the application of MAX8903HETI+T in technical solutions:

1. What is the MAX8903HETI+T? The MAX8903HETI+T is a highly integrated power management IC (PMIC) designed for use in portable devices, such as smartphones and tablets.

2. What are the key features of the MAX8903HETI+T? Some key features of the MAX8903HETI+T include multiple voltage regulators, battery charging capabilities, power sequencing, and thermal protection.

3. How many voltage regulators does the MAX8903HETI+T have? The MAX8903HETI+T has four integrated voltage regulators, which can provide different voltage levels required by various components in a portable device.

4. Can the MAX8903HETI+T charge a battery? Yes, the MAX8903HETI+T includes a battery charger circuitry that supports lithium-ion (Li+) batteries, allowing it to charge the battery while the device is connected to a power source.

5. Does the MAX8903HETI+T support power sequencing? Yes, the MAX8903HETI+T has built-in power sequencing capabilities, ensuring that the different voltage rails are powered up or down in the correct order to prevent any potential issues.

6. What is the input voltage range supported by the MAX8903HETI+T? The MAX8903HETI+T can accept an input voltage range from 2.7V to 5.5V, making it compatible with various power sources, including USB ports and wall adapters.

7. Is the MAX8903HETI+T capable of providing overcurrent protection? Yes, the MAX8903HETI+T includes overcurrent protection features, which help safeguard the device and its components from excessive current flow.

8. Can the MAX8903HETI+T handle thermal management? Yes, the MAX8903HETI+T has built-in thermal protection mechanisms that monitor the temperature and prevent overheating by reducing power or shutting down if necessary.

9. What is the typical efficiency of the MAX8903HETI+T? The typical efficiency of the MAX8903HETI+T varies depending on the specific operating conditions but can reach up to 95% in certain scenarios.

10. Is the MAX8903HETI+T suitable for low-power applications? Yes, the MAX8903HETI+T is designed to be highly efficient, making it suitable for low-power applications where maximizing battery life is crucial.

Please note that these answers are general and may vary based on specific application requirements and design considerations.