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MAX891LEUA+T
Product Overview
- Category: Integrated Circuit (IC)
- Use: Power Management
- Characteristics:
- Low Dropout Voltage Regulator
- Ultra-Low Quiescent Current
- High PSRR (Power Supply Rejection Ratio)
- Package: µMAX®
- Essence: Voltage Regulator
- Packaging/Quantity: Tape & Reel / 3,000 pieces per reel
Specifications
- Input Voltage Range: 2.5V to 6.5V
- Output Voltage Range: 1.2V to 5.5V
- Dropout Voltage: 120mV at 100mA Load Current
- Quiescent Current: 1.5µA (typical)
- PSRR: 70dB at 1kHz
- Operating Temperature Range: -40°C to +85°C
Detailed Pin Configuration
The MAX891LEUA+T has the following pin configuration:
- GND (Ground)
- IN (Input Voltage)
- EN (Enable)
- FB (Feedback)
- OUT (Output Voltage)
Functional Features
- Low dropout voltage allows for efficient power management in low-power applications.
- Ultra-low quiescent current minimizes power consumption during standby or idle modes.
- High PSRR ensures stable output voltage even in the presence of power supply fluctuations.
Advantages and Disadvantages
Advantages: - Low dropout voltage enables efficient power conversion. - Ultra-low quiescent current prolongs battery life in portable devices. - High PSRR provides a stable output voltage under varying input conditions.
Disadvantages: - Limited input voltage range (2.5V to 6.5V). - Dropout voltage may be higher than some competing models.
Working Principles
The MAX891LEUA+T is a low dropout voltage regulator that maintains a stable output voltage despite variations in the input voltage. It achieves this by utilizing a feedback mechanism that continuously adjusts the internal circuitry to compensate for changes in load and input conditions. The ultra-low quiescent current ensures minimal power consumption when the device is not actively supplying power.
Detailed Application Field Plans
The MAX891LEUA+T finds applications in various fields, including but not limited to: - Battery-powered devices - Portable electronics - IoT (Internet of Things) devices - Wearable technology - Medical devices
Detailed and Complete Alternative Models
Some alternative models to the MAX891LEUA+T include: - MAX8887EUT25+ - LT1763CS8-3.3 - TPS79333DBVR - MCP1700T-3302E/TT
These models offer similar functionality and can be considered as alternatives based on specific requirements and design constraints.
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Énumérez 10 questions et réponses courantes liées à l'application de MAX891LEUA+T dans les solutions techniques
Sure! Here are 10 common questions and answers related to the application of MAX891LEUA+T in technical solutions:
Q: What is the MAX891LEUA+T? A: The MAX891LEUA+T is a low-power, dual-input, single-output power management IC (PMIC) designed for use in portable devices.
Q: What are the key features of the MAX891LEUA+T? A: The key features include dual input voltage range, low quiescent current, integrated power switches, and thermal shutdown protection.
Q: What is the input voltage range supported by the MAX891LEUA+T? A: The MAX891LEUA+T supports an input voltage range from 2.5V to 5.5V.
Q: Can the MAX891LEUA+T be used with lithium-ion batteries? A: Yes, the MAX891LEUA+T can be used with lithium-ion batteries as it supports the required input voltage range.
Q: How much quiescent current does the MAX891LEUA+T consume? A: The MAX891LEUA+T consumes a very low quiescent current of typically 6µA.
Q: Does the MAX891LEUA+T have any built-in protection features? A: Yes, the MAX891LEUA+T has built-in thermal shutdown protection to prevent overheating.
Q: Can the MAX891LEUA+T be used in battery charging applications? A: No, the MAX891LEUA+T is not specifically designed for battery charging applications. It is primarily used for power management.
Q: What types of devices can benefit from using the MAX891LEUA+T? A: The MAX891LEUA+T is suitable for a wide range of portable devices such as smartphones, tablets, portable media players, and handheld gaming consoles.
Q: Does the MAX891LEUA+T support any power sequencing capabilities? A: No, the MAX891LEUA+T does not have built-in power sequencing capabilities. External circuitry may be required for power sequencing.
Q: Is the MAX891LEUA+T available in a surface-mount package? A: Yes, the MAX891LEUA+T is available in a space-saving 8-pin µMAX package, which is suitable for surface-mount applications.
Please note that these answers are general and may vary depending on specific application requirements. It is always recommended to refer to the datasheet and consult with the manufacturer for detailed information.