TPS61040DBVRG4

Overview

Category: Integrated Circuits (ICs)

Use: Voltage Regulator

Characteristics: - High efficiency - Low quiescent current - Wide input voltage range - Adjustable output voltage - Small package size

Package: SOT-23-5

Essence: The TPS61040DBVRG4 is a step-up (boost) voltage regulator IC designed to provide a regulated output voltage from a lower input voltage. It is commonly used in battery-powered applications where the input voltage may vary, and a stable output voltage is required.

Packaging/Quantity: The TPS61040DBVRG4 is available in a small SOT-23-5 package. It is typically sold in reels of 3000 units.

Specifications

• Input Voltage Range: 1.8V to 6V
• Output Voltage Range: 2.5V to 5.5V
• Maximum Output Current: 400mA
• Switching Frequency: 1.2MHz
• Quiescent Current: 30µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The TPS61040DBVRG4 has the following pin configuration:

```

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| | --| VIN GND |-- Pin 1: Ground --| EN SW |-- Pin 2: Switch Control --| FB NC |-- Pin 3: Feedback --| VOUT NC |-- Pin 4: Output Voltage --| NC |-- Pin 5: Not Connected |___________| ```

Functional Features

1. High Efficiency: The TPS61040DBVRG4 utilizes a high-efficiency synchronous boost converter architecture, resulting in minimal power loss and improved battery life.

2. Low Quiescent Current: With a quiescent current of only 30µA, the TPS61040DBVRG4 minimizes power consumption when the load is light or inactive.

3. Wide Input Voltage Range: The IC can accept input voltages ranging from 1.8V to 6V, making it suitable for various battery-powered applications.

4. Adjustable Output Voltage: The output voltage can be adjusted within the range of 2.5V to 5.5V, providing flexibility to meet different system requirements.

Advantages and Disadvantages

Advantages: - High efficiency design - Small package size - Wide input voltage range - Adjustable output voltage

Disadvantages: - Limited maximum output current (400mA) - Requires external components for operation

Working Principles

The TPS61040DBVRG4 operates as a step-up voltage regulator by converting a lower input voltage to a higher output voltage. It uses a synchronous boost converter topology, which consists of an inductor, a diode, and a switching transistor.

When the input voltage is applied, the internal control circuitry regulates the switching transistor to control the flow of current through the inductor. This creates a magnetic field that stores energy. When the transistor is turned off, the stored energy is released, causing the voltage across the inductor to rise.

The diode allows the current to flow in one direction, preventing it from flowing back into the input source. By controlling the duty cycle of the switching transistor, the output voltage can be regulated to the desired level.

Detailed Application Field Plans

The TPS61040DBVRG4 is commonly used in various battery-powered applications, including: - Portable electronic devices - Wireless communication systems - Handheld instruments - Medical devices - Industrial sensors

Detailed and Complete Alternative Models

1. TPS61041DBVRG4: Similar to TPS61040DBVRG4, but with a higher maximum output current of 600mA.
2. TPS61042DBVRG4: Similar to TPS61040DBVRG4, but with an adjustable switching frequency for better noise performance.
3. TPS61043DBVRG4: Similar to TPS61040DBVRG4, but with a lower quiescent current of 20µA.

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

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