TPS61089RNRT

Product Overview

Category

The TPS61089RNRT 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 boosting or stepping up voltage levels in various electronic applications. It is commonly employed in portable devices, such as smartphones, tablets, and digital cameras, where efficient power management is crucial.

Characteristics

• High efficiency: The TPS61089RNRT offers high conversion efficiency, ensuring minimal power loss during voltage conversion.
• Wide input voltage range: It can operate with input voltages ranging from 2.5V to 12V, making it suitable for a wide range of applications.
• Adjustable output voltage: The output voltage can be adjusted within a specified range, providing flexibility for different system requirements.
• Low quiescent current: The device features low quiescent current consumption, contributing to overall power savings.
• Thermal shutdown protection: It incorporates thermal shutdown protection to prevent damage due to excessive heat.

Package and Quantity

The TPS61089RNRT is available in a small outline no-lead (SON) package, which facilitates easy integration into compact designs. It is typically supplied in reels, with a quantity of 3000 units per reel.

Specifications

• Input Voltage Range: 2.5V to 12V
• Output Voltage Range: Adjustable (typically 3.3V to 5V)
• Maximum Output Current: 1A
• Switching Frequency: 1.2MHz
• Quiescent Current: 60µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The TPS61089RNRT has the following pin configuration:

```

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| | --| VIN | --| EN | --| FB | --| SW | --| GND | |___________| ```

• VIN: Input voltage pin
• EN: Enable pin (active high)
• FB: Feedback pin for output voltage regulation
• SW: Switching node pin
• GND: Ground pin

Functional Features

1. Wide input voltage range: The TPS61089RNRT can efficiently boost voltages within the range of 2.5V to 12V, accommodating various power sources.
2. Adjustable output voltage: The device allows users to adjust the output voltage within a specified range, providing flexibility for different system requirements.
3. High efficiency: With its high conversion efficiency, the TPS61089RNRT minimizes power loss during voltage conversion, contributing to longer battery life in portable devices.
4. Thermal shutdown protection: The integrated thermal shutdown protection prevents the device from overheating, ensuring safe operation even under demanding conditions.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption and extended battery life.
• Wide input voltage range enables compatibility with various power sources.
• Adjustable output voltage provides flexibility for different applications.
• Thermal shutdown protection ensures safe operation.

Disadvantages

• Limited maximum output current of 1A may not be suitable for high-power applications.
• Requires external components for proper operation, increasing overall system complexity.

Working Principles

The TPS61089RNRT operates as a step-up (boost) voltage regulator. It utilizes a switching topology to efficiently convert the input voltage to a higher output voltage. The internal control circuitry adjusts the duty cycle of the switching transistor to regulate the output voltage based on the feedback received from the FB pin. This feedback loop ensures a stable and accurate output voltage despite variations in the input voltage or load conditions.

Detailed Application Field Plans

The TPS61089RNRT finds applications in various electronic devices that require voltage boosting capabilities. Some specific application fields include:

1. Portable Electronics: It is widely used in smartphones, tablets, portable media players, and other battery-powered devices to efficiently boost the battery voltage for powering different components.
2. Digital Cameras: The TPS61089RNRT can be employed in digital cameras to step up the battery voltage for driving the image sensor, display, and other power-hungry modules.
3. Wireless Communication Devices: It is suitable for wireless communication devices like routers, access points, and IoT devices, where stable and efficient power management is essential.

Detailed and Complete Alternative Models

• TPS61088RNRT: Similar to TPS61089RNRT but with a lower maximum output current of 500mA.
• TPS61087RNRT: Another alternative with a higher maximum output current of 1.5A, suitable for more power-demanding applications.
• TPS61165RNRT: A related model offering adjustable output voltage and higher maximum output current of 3A, suitable for high-power applications