Consulte las especificaciones para obtener detalles del producto.
MAX1557ETB-T
Product Overview
- Category: Integrated Circuit (IC)
- Use: Power Management
- Characteristics: Low Quiescent Current, High Efficiency
- Package: 10-pin TDFN (Thin Dual Flat No-Lead)
- Essence: Voltage Regulator
- Packaging/Quantity: Tape and Reel, 2500 units per reel
Specifications
- Input Voltage Range: 2.5V to 5.5V
- Output Voltage Range: 1.8V to 3.3V
- Maximum Output Current: 300mA
- Quiescent Current: 6µA (typical)
- Efficiency: Up to 95%
- Operating Temperature Range: -40°C to +85°C
Detailed Pin Configuration
- GND: Ground
- EN: Enable Pin
- FB: Feedback Pin
- VOUT: Output Voltage
- VIN: Input Voltage
- SW: Switching Node
- PGND: Power Ground
- LX: Inductor Connection
- NC: No Connect
- VCC: Supply Voltage
Functional Features
- Low quiescent current enables longer battery life.
- High efficiency reduces power dissipation.
- Wide input voltage range allows flexibility in power sources.
- Adjustable output voltage meets various application requirements.
- Enable pin for easy on/off control.
Advantages
- Compact package size saves board space.
- Excellent load and line regulation ensures stable output.
- Thermal shutdown and current limit protection enhance reliability.
- Low dropout voltage minimizes power loss.
Disadvantages
- Limited maximum output current may not be suitable for high-power applications.
- Non-adjustable output voltage may restrict certain use cases.
Working Principles
The MAX1557ETB-T is a voltage regulator IC that converts an input voltage into a regulated output voltage. It utilizes a switching regulator topology to achieve high efficiency. The input voltage is stepped down and regulated to the desired output voltage using an internal control loop. The feedback pin (FB) monitors the output voltage and adjusts the duty cycle of the internal switch to maintain a stable output.
Detailed Application Field Plans
The MAX1557ETB-T is commonly used in portable electronic devices, such as smartphones, tablets, and wearable devices. It provides a stable power supply for various components, including microprocessors, memory modules, and wireless communication modules. Its low quiescent current and high efficiency make it ideal for battery-powered applications where power consumption is critical.
Detailed and Complete Alternative Models
- MAX1558ETB-T: Similar specifications with adjustable output voltage.
- MAX1559ETB-T: Higher maximum output current with fixed output voltage.
- MAX1560ETB-T: Lower quiescent current and wider input voltage range.
These alternative models offer different features and specifications to cater to specific application requirements.
Word count: 346 words
Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de MAX1557ETB-T en soluciones técnicas
Sure! Here are 10 common questions and answers related to the application of MAX1557ETB-T in technical solutions:
Q: What is the MAX1557ETB-T? A: The MAX1557ETB-T is a high-efficiency, low-quiescent current linear charger designed for single-cell lithium-ion (Li+) batteries.
Q: What is the input voltage range of the MAX1557ETB-T? A: The input voltage range of the MAX1557ETB-T is typically between 4.5V and 28V.
Q: What is the charging current range supported by the MAX1557ETB-T? A: The MAX1557ETB-T supports a charging current range from 100mA to 1A.
Q: Can the MAX1557ETB-T charge other types of batteries besides Li+ batteries? A: No, the MAX1557ETB-T is specifically designed for charging single-cell Li+ batteries and may not be suitable for other battery chemistries.
Q: Does the MAX1557ETB-T have built-in thermal protection? A: Yes, the MAX1557ETB-T features built-in thermal protection to prevent overheating during charging.
Q: Can the MAX1557ETB-T operate while charging the battery? A: Yes, the MAX1557ETB-T can operate in "power path" mode, allowing the system to run directly from the input supply while simultaneously charging the battery.
Q: Is the MAX1557ETB-T compatible with USB power sources? A: Yes, the MAX1557ETB-T is designed to work with USB power sources and complies with USB Battery Charging Specification 1.2.
Q: Does the MAX1557ETB-T support battery temperature monitoring? A: Yes, the MAX1557ETB-T includes a thermistor input for battery temperature monitoring.
Q: Can the MAX1557ETB-T be used in portable devices with limited space? A: Yes, the MAX1557ETB-T is available in a small 10-pin TDFN package, making it suitable for applications with limited board space.
Q: Are there any evaluation kits or reference designs available for the MAX1557ETB-T? A: Yes, Maxim Integrated provides evaluation kits and reference designs to help users quickly prototype and implement the MAX1557ETB-T in their applications.
Please note that these answers are general and may vary depending on specific application requirements. It is always recommended to refer to the MAX1557ETB-T datasheet and consult with the manufacturer for detailed information.