TPS61040QDBVRQ1

Product Overview

Category

The TPS61040QDBVRQ1 belongs to the category of integrated circuits (ICs) and specifically falls under the voltage regulators - DC/DC switching regulators.

Use

This product is primarily used for boosting or stepping up the input voltage to a higher output voltage level. It is commonly employed in various electronic devices where a higher voltage is required, such as portable devices, battery-powered systems, and automotive applications.

Characteristics

• Input Voltage Range: 0.9V to 6V
• Output Voltage Range: 1.8V to 6V
• Switching Frequency: Up to 1.2MHz
• Efficiency: Up to 90%
• Operating Temperature Range: -40°C to +125°C
• Package Type: SOT-23-5
• RoHS Compliant: Yes

Package and Quantity

The TPS61040QDBVRQ1 is available in a small outline transistor (SOT) package with five pins. It is supplied in tape and reel packaging, with a quantity of 3000 units per reel.

Specifications

• Input Voltage Range: 0.9V to 6V
• Output Voltage Range: 1.8V to 6V
• Switching Frequency: Up to 1.2MHz
• Maximum Output Current: 400mA
• Quiescent Current: 30µA (typical)
• Shutdown Current: 0.1µA (typical)
• Operating Temperature Range: -40°C to +125°C
• Package Type: SOT-23-5
• RoHS Compliant: Yes

Pin Configuration

The TPS61040QDBVRQ1 has the following pin configuration:

1. EN (Enable): Enable pin for turning the device on or off.
2. FB (Feedback): Feedback pin for regulating the output voltage.
3. SW (Switch): Switch pin for controlling the internal power switch.
4. GND (Ground): Ground reference pin.
5. VIN (Input Voltage): Input voltage supply pin.

Functional Features

• High Efficiency: The TPS61040QDBVRQ1 offers high efficiency, allowing for maximum power conversion with minimal energy loss.
• Wide Input Voltage Range: With an input voltage range of 0.9V to 6V, this device can accommodate a wide variety of power sources.
• Adjustable Output Voltage: The output voltage can be adjusted within the range of 1.8V to 6V, providing flexibility for different application requirements.
• Internal Compensation: This IC incorporates internal compensation, simplifying the design process and reducing external component count.
• Protection Features: The TPS61040QDBVRQ1 includes various protection features such as thermal shutdown, overcurrent protection, and undervoltage lockout, ensuring safe operation and preventing damage to the device.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption and longer battery life.
• Wide input voltage range allows for compatibility with various power sources.
• Adjustable output voltage provides flexibility for different applications.
• Internal compensation simplifies the design process.
• Protection features enhance reliability and prevent damage.

Disadvantages

• Limited maximum output current of 400mA may not be suitable for high-power applications.
• SOT-23-5 package may have size limitations in certain designs.

Working Principles

The TPS61040QDBVRQ1 is a DC/DC boost converter that utilizes a switching regulator topology. It operates by converting the input voltage to a higher output voltage level through a series of switching cycles. The internal power switch controls the energy transfer from the input to the output, while the feedback mechanism regulates the output voltage based on the desired setpoint.

During operation, the input voltage is switched at a high frequency, typically up to 1.2MHz, by the internal power switch. This switching action allows for efficient energy transfer and voltage boosting. The feedback pin monitors the output voltage and adjusts the duty cycle of the internal switch to maintain a stable output voltage within the specified range.

Detailed Application Field Plans

The TPS61040QDBVRQ1 finds applications in various fields, including:

1. Portable Devices: It can be used in smartphones, tablets, portable media players, and other battery-powered devices to boost the battery voltage to power different components.
2. Automotive Applications: The TPS61040QDBVRQ1 is suitable for automotive systems that require higher voltages, such as LED lighting, infotainment systems, and sensor modules.
3. Industrial Equipment: It can be utilized in industrial equipment where a higher voltage is needed, such as control systems, motor drives, and instrumentation devices. 4