TPS65552ADGQ

Product Overview

Category

The TPS65552ADGQ belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is commonly used in various electronic devices and systems to efficiently regulate and control power supply voltages.

Characteristics

• High efficiency: The TPS65552ADGQ offers high conversion efficiency, minimizing power losses during voltage regulation.
• Wide input voltage range: It can handle a wide range of input voltages, making it suitable for diverse applications.
• Multiple output channels: This IC provides multiple output channels, allowing for simultaneous regulation of different voltages.
• Low quiescent current: It features low quiescent current consumption, reducing power wastage during standby or idle modes.

Package

The TPS65552ADGQ is available in a compact and industry-standard package, such as a 10-pin VSSOP (Very Small Outline Package).

Essence

The essence of the TPS65552ADGQ lies in its ability to efficiently manage power supply voltages, ensuring stable and reliable operation of electronic devices.

Packaging/Quantity

The TPS65552ADGQ is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: Adjustable from 0.6V to 3.6V
• Number of Output Channels: 2
• Maximum Output Current: 500mA per channel
• Quiescent Current: 50µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground reference pin
3. EN: Enable pin for turning the IC on/off
4. FB1: Feedback pin for output channel 1
5. SW1: Switching node for output channel 1
6. LX1: Inductor connection for output channel 1
7. FB2: Feedback pin for output channel 2
8. SW2: Switching node for output channel 2
9. LX2: Inductor connection for output channel 2
10. VOUT: Output voltage pin

Functional Features

• Voltage regulation: The TPS65552ADGQ provides precise and stable voltage regulation for different output channels.
• Overcurrent protection: It incorporates overcurrent protection mechanisms to safeguard connected devices from excessive current flow.
• Thermal shutdown: The IC includes a thermal shutdown feature that activates when the temperature exceeds a safe threshold, preventing damage due to overheating.
• Soft-start functionality: This feature ensures a gradual increase in output voltage during startup, minimizing stress on the system components.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption and longer battery life.
• Wide input voltage range enables compatibility with various power sources.
• Multiple output channels allow for flexible voltage regulation.
• Compact package size facilitates integration into space-constrained designs.

Disadvantages

• Limited maximum output current per channel may restrict usage in high-power applications.
• Lack of built-in protection against voltage spikes or transients may require additional external circuitry.

Working Principles

The TPS65552ADGQ operates based on a switching regulator topology, utilizing pulse-width modulation (PWM) techniques to regulate the output voltage. It employs an internal oscillator to generate control signals that drive the power switches, controlling the energy transfer from the input to the output. By adjusting the duty cycle of the PWM signals, the IC regulates the output voltage according to the desired level.

Detailed Application Field Plans

The TPS65552ADGQ finds applications in various electronic devices and systems, including but not limited to: - Portable consumer electronics (e.g., smartphones, tablets, portable media players) - Battery-powered devices (e.g., wireless sensors, wearable devices) - Industrial automation equipment - Automotive electronics - Internet of Things (IoT) devices

Detailed and Complete Alternative Models

1. TPS65550ADGQ: Similar to the TPS65552ADGQ, but with a single output channel instead of two.
2. TPS65551ADGQ: A variant with enhanced current handling capability, suitable for higher power applications.
3. TPS65553ADGQ: Offers additional features such as adjustable switching frequency and synchronization options.

These alternative models provide similar functionality and can be considered based on specific application requirements.

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