TPS61221DCKR

Product Overview

Category

The TPS61221DCKR belongs to the category of integrated circuits (ICs) and specifically falls under the voltage regulators - switching regulators family.

Use

This IC is primarily used as a boost converter, which means it increases the input voltage to a higher output voltage level. It is commonly employed in various electronic devices where efficient power management is required.

Characteristics

• The TPS61221DCKR is designed to operate with an input voltage range of 0.3V to 5.5V.
• It can provide an adjustable output voltage ranging from 1.8V to 5.5V.
• This IC offers high efficiency, typically up to 95%, making it suitable for battery-powered applications.
• It features a low quiescent current, ensuring minimal power consumption during standby or idle modes.
• The TPS61221DCKR has built-in protection features such as thermal shutdown, overcurrent protection, and undervoltage lockout.

Package and Quantity

The TPS61221DCKR is available in a small SOT-23-5 package, which consists of five pins. It is supplied in tape and reel packaging, with a quantity of 3000 units per reel.

Specifications

• Input Voltage Range: 0.3V to 5.5V
• Output Voltage Range: 1.8V to 5.5V
• Efficiency: Up to 95%
• Quiescent Current: Low
• Package Type: SOT-23-5
• Packaging: Tape and Reel
• Quantity per Reel: 3000 units

Pin Configuration

The TPS61221DCKR has the following pin configuration:

____ EN | | VIN FB | | SW GND |____| VOUT

• EN: Enable pin for turning the boost converter on or off.
• VIN: Input voltage pin.
• FB: Feedback pin for setting the desired output voltage.
• SW: Switching node pin.
• GND: Ground pin.
• VOUT: Output voltage pin.

Functional Features

• High Efficiency: The TPS61221DCKR offers high efficiency, ensuring optimal power conversion and minimizing energy loss.
• Wide Input Voltage Range: It can operate with a wide range of input voltages, making it versatile for various applications.
• Adjustable Output Voltage: The output voltage can be easily adjusted to meet specific requirements.
• Built-in Protection: This IC incorporates protection features such as thermal shutdown, overcurrent protection, and undervoltage lockout, enhancing system reliability.

Advantages and Disadvantages

Advantages

• High efficiency operation
• Wide input voltage range
• Adjustable output voltage
• Built-in protection features

Disadvantages

• Limited maximum output current capability
• Requires external components for proper operation

Working Principles

The TPS61221DCKR operates as a boost converter by utilizing an inductor 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 process stores energy in the inductor during the "on" state and releases it to the output during the "off" state, resulting in a higher output voltage.

Detailed Application Field Plans

The TPS61221DCKR finds applications in various fields, including but not limited to: 1. Portable electronic devices: Used to efficiently manage power in smartphones, tablets, and wearable devices. 2. Battery-powered systems: Suitable for boosting battery voltage to power microcontrollers, sensors, and other low-power components. 3. IoT devices: Enables efficient power management in Internet of Things (IoT) devices, extending battery life. 4. Automotive electronics: Used in automotive applications where voltage regulation is required for different subsystems.

Detailed and Complete Alternative Models

1. TPS61222DCKR: Similar to the TPS61221DCKR, but with a fixed output voltage of 3.3V.
2. TPS61223DCKR: Boost converter IC with adjustable output voltage and higher maximum output current capability.
3. TPS61224DCKR: Boost converter IC with adjustable output voltage and lower quiescent current.

These alternative models offer similar functionality to the TPS61221DCKR but may have specific features or specifications that cater to different application requirements.

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