MAX766CPA

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High-efficiency step-up DC-DC converter
• Package: 8-pin PDIP (Plastic Dual In-line Package)
• Essence: Voltage regulator and booster
• Packaging/Quantity: Tube packaging, 25 pieces per tube

Specifications

• Input Voltage Range: 2.5V to 16V
• Output Voltage Range: Up to 28V
• Switching Frequency: 100kHz
• Maximum Output Current: 200mA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. GND (Ground): Connected to the ground reference of the circuit.
2. VFB (Feedback Voltage): Provides feedback for regulating the output voltage.
3. VIN (Input Voltage): Connects to the input power source.
4. SW (Switch): Connects to the inductor and switches the current flow.
5. LX (Inductor Connection): Connects to the inductor for energy storage.
6. COUT (Output Capacitor): Connects to the output capacitor for filtering.
7. FB (Feedback): Connects to an external resistor divider network for voltage regulation.
8. VOUT (Output Voltage): Provides the regulated output voltage.

Functional Features

• High efficiency conversion of input voltage to a higher output voltage.
• Low quiescent current consumption, suitable for battery-powered applications.
• Built-in over-temperature and over-current protection.
• Soft-start feature prevents excessive inrush current during startup.

Advantages

• Compact and space-saving package design.
• Wide input voltage range allows flexibility in power source selection.
• Efficient power conversion reduces energy waste.
• Reliable over-temperature and over-current protection ensures device safety.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• Fixed switching frequency may not be adjustable for specific requirements.

Working Principles

The MAX766CPA is a step-up DC-DC converter that utilizes an inductor to store energy from the input voltage and then releases it to the output at a higher voltage. The switching action of the internal switch (SW pin) controls the flow of current through the inductor, resulting in voltage boosting. The feedback mechanism (VFB and FB pins) regulates the output voltage by adjusting the duty cycle of the switching action.

Detailed Application Field Plans

The MAX766CPA is commonly used in various applications, including:

1. Battery-powered devices: Provides efficient voltage boosting for portable electronics such as smartphones, tablets, and wearable devices.
2. Automotive systems: Used for voltage regulation in automotive electronics, including infotainment systems, navigation units, and lighting control modules.
3. Industrial equipment: Enables power management in industrial automation systems, motor control units, and sensor networks.
4. Communication devices: Supports voltage conversion in wireless routers, modems, and network switches.

Detailed and Complete Alternative Models

1. MAX1676ESA: Similar functionality with a different package (8-pin SOIC).
2. MAX756CSA: Higher maximum output current (400mA) with a similar package (8-pin SOIC).
3. MAX1715EEI: Adjustable switching frequency and higher output voltage range (up to 40V) in a different package (28-pin SSOP).

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