TPS54340DDAR

Product Overview

Category

The TPS54340DDAR belongs to the category of integrated circuits (ICs) and specifically falls under the voltage regulators - switching regulators classification.

Use

This product is primarily used for regulating voltage in electronic devices. It provides a stable output voltage, making it suitable for various applications that require precise power management.

Characteristics

• High efficiency: The TPS54340DDAR offers high conversion efficiency, minimizing power loss during voltage regulation.
• Wide input voltage range: It can accept a wide range of input voltages, allowing flexibility in different power supply scenarios.
• Adjustable output voltage: The output voltage can be adjusted according to specific requirements, providing versatility in various applications.
• Fast transient response: This IC quickly responds to changes in load conditions, ensuring stable voltage output even during dynamic situations.

Package

The TPS54340DDAR comes in a small outline package (SOP) with eight pins. The package type is known as "PowerPAD MSOP," which includes a thermal pad for improved heat dissipation.

Essence

The essence of the TPS54340DDAR lies in its ability to efficiently regulate voltage, ensuring reliable and stable power supply for electronic devices.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 4.5V to 18V
• Output Voltage Range: 0.8V to 6V
• Maximum Output Current: 3A
• Switching Frequency: 500kHz
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

1. VIN: Input voltage pin
2. PGND: Power ground pin
3. SW: Switching node pin
4. FB: Feedback pin for output voltage regulation
5. EN: Enable pin to control the IC's operation
6. SS/TR: Soft-start/Tracking pin for controlling start-up behavior
7. VCC: Supply voltage pin for internal circuitry
8. PGND: Power ground pin

Functional Features

• Voltage Regulation: The TPS54340DDAR ensures a stable and accurate output voltage, even under varying load conditions.
• Overcurrent Protection: It incorporates overcurrent protection to safeguard the device and connected components from excessive current flow.
• Thermal Shutdown: In case of excessive temperature, the IC activates thermal shutdown to prevent damage due to overheating.
• Under-Voltage Lockout (UVLO): The UVLO feature disables the IC when the input voltage falls below a certain threshold, protecting against improper operation.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power loss.
• Wide input voltage range allows flexibility in power supply options.
• Adjustable output voltage provides versatility for different applications.
• Fast transient response ensures stability during dynamic load changes.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• Requires external components for proper operation, increasing complexity.

Working Principles

The TPS54340DDAR operates as a synchronous buck converter. It utilizes pulse-width modulation (PWM) techniques to regulate the output voltage. By controlling the duty cycle of the switching transistor, it adjusts the energy transfer from the input to the output, maintaining a constant voltage level.

Detailed Application Field Plans

The TPS54340DDAR finds applications in various fields, including but not limited to: 1. Consumer electronics: Powering portable devices, such as smartphones, tablets, and laptops. 2. Industrial equipment: Providing stable power supply for automation systems, motor drives, and control circuits. 3. Automotive electronics: Regulating voltage for infotainment systems, lighting modules, and engine control units. 4. Telecommunications: Powering network equipment, routers, and base stations.

Detailed and Complete Alternative Models

1. TPS54340DDA: Similar to TPS54340DDAR but without the thermal pad.
2. TPS54340RTER: A smaller package variant with a reduced pin count.
3. TPS54340QDRCRQ1: Automotive-grade version with enhanced reliability and extended temperature range.

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

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