MAX772CSA+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High-efficiency, Low-power, Step-up DC-DC Converter
• Package: 8-SOIC (Small Outline Integrated Circuit)
• Essence: MAX772CSA+T is a versatile power management IC that provides high-efficiency step-up DC-DC conversion for various applications.
• Packaging/Quantity: Available in tape and reel packaging with 2500 units per reel.

Specifications

• Input Voltage Range: 2.7V to 11V
• Output Voltage Range: Up to 5.5V
• Switching Frequency: 1.2MHz
• Quiescent Current: 17µA (typical)
• Operating Temperature Range: -40°C to +85°C
• Shutdown Current: 0.1µA (typical)

Pin Configuration

The MAX772CSA+T has the following pin configuration:

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| | --| VOUT | --| VIN | --| GND | --| FB | --| EN | --| SW | --| LX | |___________| ```

Functional Features

• High-efficiency step-up DC-DC conversion
• Internal synchronous rectifier
• Adjustable output voltage
• Soft-start function for controlled startup
• Overcurrent and overtemperature protection
• Low quiescent current for power-saving operation

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption - Compact package size allows for space-saving designs - Wide input voltage range enables compatibility with various power sources - Adjustable output voltage provides flexibility for different applications - Built-in protection features enhance reliability and safety

Disadvantages: - Limited output voltage range may not be suitable for certain applications requiring higher voltages - Higher switching frequency may introduce additional noise in sensitive circuits

Working Principles

The MAX772CSA+T is a step-up DC-DC converter that efficiently boosts the input voltage to a higher output voltage. It utilizes an internal synchronous rectifier to minimize power losses during conversion. The IC operates at a high switching frequency of 1.2MHz, allowing for the use of smaller external components.

The device incorporates a feedback (FB) pin that enables the user to adjust the output voltage according to their specific requirements. A soft-start function ensures a controlled startup, preventing excessive inrush current.

To ensure safe operation, the MAX772CSA+T includes overcurrent and overtemperature protection mechanisms. These features safeguard the IC and the connected circuitry from potential damage.

Detailed Application Field Plans

The MAX772CSA+T finds applications in various fields, including but not limited to:

1. Portable electronic devices: Provides efficient power management for battery-powered devices such as smartphones, tablets, and portable media players.
2. IoT (Internet of Things): Enables power-efficient operation of IoT devices, extending battery life and reducing energy consumption.
3. Wearable technology: Suitable for powering wearable devices like smartwatches, fitness trackers, and medical monitoring devices.
4. Industrial equipment: Offers reliable power management solutions for industrial control systems, sensors, and data acquisition devices.
5. Automotive electronics: Supports power supply requirements in automotive applications, including infotainment systems, lighting, and advanced driver-assistance systems (ADAS).

Detailed and Complete Alternative Models

1. MAX771: Similar to MAX772CSA+T, but with a lower input voltage range of 2.7V to 5.5V.
2. MAX773: Step-up DC-DC converter with a higher output voltage range of up to 12V.
3. MAX774: Integrated power management IC with multiple DC-DC converters and additional features such as voltage monitoring and sequencing.

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

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