MAX772ESA-T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High-efficiency, Low-power, Step-up DC-DC Converter
• Package: SOIC-8
• Essence: MAX772ESA-T is a versatile power management IC designed for various portable electronic devices.
• Packaging/Quantity: Available in tape and reel packaging with 2500 units per reel.

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage Range: Up to 28V
• Switching Frequency: 1.2MHz
• Quiescent Current: 17µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX772ESA-T features an 8-pin Small Outline Integrated Circuit (SOIC) package. The pin configuration is as follows:

1. GND: Ground
2. LX: Switch Node Connection
3. FB: Feedback Input
4. EN: Enable Control Input
5. VOUT: Output Voltage
6. SW: Switch Node Connection
7. VIN: Input Voltage
8. PGND: Power Ground

Functional Features

• High Efficiency: The MAX772ESA-T utilizes a high-efficiency step-up DC-DC converter, ensuring optimal power conversion with minimal energy loss.
• Low Power Consumption: With a quiescent current of only 17µA, the IC minimizes power consumption during standby or low-load conditions.
• Wide Input Voltage Range: The IC can operate within a wide input voltage range of 2.5V to 5.5V, making it suitable for various battery-powered applications.
• Adjustable Output Voltage: The output voltage can be adjusted up to 28V, providing flexibility for different device requirements.
• Enable Control: The EN pin allows for easy on/off control of the IC, conserving power when not in use.

Advantages and Disadvantages

Advantages

• High efficiency leads to longer battery life.
• Low power consumption during standby or low-load conditions.
• Wide input voltage range enables compatibility with various power sources.
• Adjustable output voltage provides flexibility for different applications.
• Enable control allows for easy power management.

Disadvantages

• Limited to step-up DC-DC conversion, not suitable for step-down applications.
• Requires external components for proper operation.

Working Principles

The MAX772ESA-T is a step-up DC-DC converter that converts a low input voltage to a higher output voltage. It utilizes an internal switch to regulate the output voltage based on the feedback received from the FB pin. The switching frequency of 1.2MHz ensures efficient power conversion. The EN pin allows for easy on/off control of the IC, enabling power-saving functionality.

Application Field Plans

The MAX772ESA-T is widely used in portable electronic devices that require efficient power management. Some potential application fields include:

1. Mobile Phones
2. Tablets
3. Portable Media Players
4. Wearable Devices
5. GPS Navigation Systems
6. Digital Cameras
7. Handheld Gaming Consoles

Alternative Models

For those seeking alternative options, the following models can be considered:

1. MAX773ESA-T: Similar to MAX772ESA-T but with additional features.
2. MAX771ESA-T: Step-down DC-DC converter for applications requiring lower output voltage.
3. MAX776ESA-T: Power management IC with integrated battery charging functionality.

These alternative models offer different specifications and features, allowing users to choose the most suitable option for their specific requirements.

In conclusion, the MAX772ESA-T is a versatile power management IC designed for various portable electronic devices. With its high efficiency, low power consumption, and adjustable output voltage, it provides an optimal solution for efficient power conversion. Its wide input voltage range and enable control further enhance its usability. However, it is important to consider alternative models based on specific application needs.