TPS61222DCKT

Product Overview

Category

The TPS61222DCKT belongs to the category of integrated circuits (ICs) and specifically falls under the voltage regulators - switching regulators family.

Use

This product is primarily used for boosting or stepping up voltage levels efficiently. It is commonly employed in various electronic devices where a stable and regulated power supply is required.

Characteristics

• High efficiency: The TPS61222DCKT offers high conversion efficiency, ensuring minimal power loss during voltage conversion.
• Wide input voltage range: It can accept input voltages ranging from 0.3V to 5.5V, making it suitable for a wide range of applications.
• Adjustable output voltage: The output voltage can be adjusted within a specified range, providing flexibility in meeting different system requirements.
• Low quiescent current: The device exhibits low standby current consumption, contributing to overall power efficiency.
• Thermal shutdown protection: It incorporates thermal shutdown circuitry to prevent damage due to excessive heat.

Package and Quantity

The TPS61222DCKT is available in a small form factor package known as VSON-8. It consists of eight pins and is designed for surface mount applications. This product is typically sold in reels, with each reel containing a specific quantity of units, usually around 3000 pieces.

Specifications

• Input Voltage Range: 0.3V to 5.5V
• Output Voltage Range: 1.8V to 5.5V
• Maximum Output Current: 1A
• Switching Frequency: 1.2MHz
• Quiescent Current: 17µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The TPS61222DCKT features the following pin configuration:

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| | | PIN | |___________| ```

1. VIN: Input voltage pin
2. EN: Enable pin (active high)
3. PG: Power good indicator pin
4. FB: Feedback pin for output voltage regulation
5. SW: Switching node pin
6. GND: Ground pin
7. NC: No connection pin
8. VOUT: Output voltage pin

Functional Features

• High Efficiency: The TPS61222DCKT utilizes a synchronous rectification architecture, resulting in improved efficiency and reduced power dissipation.
• Dynamic Voltage Scaling: It supports dynamic voltage scaling, allowing the output voltage to be adjusted based on system requirements, thereby optimizing power consumption.
• Soft Start: The device incorporates a soft start feature, which gradually ramps up the output voltage during startup, preventing excessive inrush current.
• Overcurrent Protection: It includes overcurrent protection circuitry to safeguard against excessive load currents, ensuring the longevity of the device and connected components.
• Power Good Indicator: The PG pin provides a signal indicating when the output voltage has reached a stable and acceptable level.

Advantages and Disadvantages

Advantages

• High conversion efficiency leads to minimal power loss.
• Wide input voltage range enables versatile applications.
• Adjustable output voltage offers flexibility.
• Low quiescent current contributes to overall power efficiency.
• Thermal shutdown protection prevents damage due to excessive heat.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• Synchronous rectification architecture may introduce additional complexity in design and layout.

Working Principles

The TPS61222DCKT operates as a step-up (boost) converter. It uses an internal switch to control the energy transfer from the input to the output. During operation, the input voltage is first stored in an inductor and then transferred to the output through a diode. The switching frequency determines the rate at which energy is transferred.

The device employs pulse width modulation (PWM) to regulate the output voltage. By adjusting the duty cycle of the internal switch, the average output voltage can be controlled within the desired range. Feedback circuitry compares the actual output voltage with a reference voltage and adjusts the duty cycle accordingly.

Application Field Plans

The TPS61222DCKT finds applications in various fields, including but not limited to: - Battery-powered devices: It can be used in portable electronics such as smartphones, tablets, and wearable devices to efficiently boost battery voltage. - IoT devices: The product is suitable for low-power IoT applications where energy efficiency is crucial. - Industrial automation: It can be utilized in industrial control systems that require stable and regulated power supplies. - Automotive electronics: The TPS61222DCKT can be employed in automotive applications, such as infotainment systems or advanced driver-assistance systems (ADAS).

Alternative Models

For those seeking alternative options, the following models offer similar functionality to the TPS61222DCKT: - TPS61220