MAX755CPA

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Converter
• Characteristics: Low-power, high-efficiency
• Package: 8-pin PDIP (Plastic Dual In-line Package)
• Essence: DC-to-DC voltage converter
• Packaging/Quantity: Tube packaging, 25 pieces per tube

Specifications

• Input Voltage Range: 2.5V to 16V
• Output Voltage Range: 1.23V to 15V
• Maximum Output Current: 50mA
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 120µA (typical)

Detailed Pin Configuration

The MAX755CPA has the following 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): Accepts the input voltage to be converted.
4. SW (Switch): Connects to an external inductor for energy storage.
5. LX (Inductor Connection): Connects to the other terminal of the external inductor.
6. VOUT (Output Voltage): Provides the regulated output voltage.
7. C1 (Input Capacitor): Connects to an external capacitor for input filtering.
8. C2 (Output Capacitor): Connects to an external capacitor for output filtering.

Functional Features

• Low-power operation with high efficiency.
• Wide input voltage range allows for versatile applications.
• Adjustable output voltage through external resistor divider.
• Built-in overcurrent and thermal protection.
• Soft-start feature prevents excessive inrush current during startup.

Advantages and Disadvantages

Advantages: - Low quiescent current enables power-saving operation. - High efficiency minimizes power loss. - Compact 8-pin package allows for space-saving designs. - Wide input voltage range provides flexibility in various applications.

Disadvantages: - Limited maximum output current may restrict certain high-power applications. - Requires external components (inductor and capacitors) for proper operation.

Working Principles

The MAX755CPA is a DC-to-DC voltage converter that utilizes a switched-capacitor charge pump topology. It converts the input voltage to a regulated output voltage using an external inductor and capacitors. The internal control circuitry adjusts the duty cycle of the switching transistor to maintain the desired output voltage. The feedback voltage (VFB) pin monitors the output voltage and provides feedback for regulation.

Detailed Application Field Plans

The MAX755CPA finds applications in various fields, including but not limited to:

1. Battery-powered devices: Provides efficient voltage conversion for portable electronics.
2. Industrial automation: Used in control systems requiring stable and regulated power supply.
3. Automotive electronics: Suitable for powering sensors, actuators, and other automotive components.
4. Telecommunications: Used in communication equipment for voltage conversion and regulation.
5. Consumer electronics: Enables efficient power management in devices such as smartphones, tablets, and audio/video equipment.

Detailed and Complete Alternative Models

1. MAX756CPA: Similar specifications and features, but with a higher maximum output current of 100mA.
2. MAX757CPA: Offers adjustable output voltage through an internal digital-to-analog converter (DAC).
3. MAX764CPA: Provides a wider input voltage range of 1.8V to 16V, suitable for low-voltage applications.
4. MAX765CPA: Includes an integrated low-battery detector for additional system protection.

(Note: This list is not exhaustive and there may be other alternative models available.)

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