TPS62091RGTR

Product Overview

Category

The TPS62091RGTR belongs to the category of integrated circuits (ICs) and specifically falls under the voltage regulators category.

Use

This product is primarily used as a step-down converter, which means it converts a higher input voltage into a lower output voltage. It is commonly employed in various electronic devices to provide a stable power supply for sensitive components.

Characteristics

• High efficiency: The TPS62091RGTR offers high conversion efficiency, minimizing power losses during voltage conversion.
• Low quiescent current: It has a low standby current consumption, making it suitable for battery-powered applications.
• Wide input voltage range: This IC can handle a wide range of input voltages, allowing flexibility in different power supply scenarios.
• Adjustable output voltage: The output voltage can be adjusted according to the specific requirements of the application.

Package and Quantity

The TPS62091RGTR is available in a small outline package (SOT) with a thermal pad. It is supplied in tape and reel packaging, making it suitable for automated assembly processes. The quantity per reel typically ranges from 2500 to 4000 units.

Specifications

• Input Voltage Range: 2.7V to 6V
• Output Voltage Range: 0.8V to VIN
• Maximum Output Current: 3A
• Switching Frequency: Up to 2.5MHz
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The TPS62091RGTR features a total of 16 pins, each serving a specific function. The pin configuration is as follows:

1. EN (Enable)
2. PG (Power Good)
3. FB (Feedback)
4. SS/TR (Soft Start/Tracking)
5. AGND (Analog Ground)
6. SW (Switch Node)
7. SW (Switch Node)
8. SW (Switch Node)
9. SW (Switch Node)
10. VIN (Input Voltage)
11. VIN (Input Voltage)
12. VIN (Input Voltage)
13. VIN (Input Voltage)
14. PGND (Power Ground)
15. PGND (Power Ground)
16. PGND (Power Ground)

Functional Features

• Enable (EN): This pin controls the operation of the regulator. When high, the device is enabled, and when low, it enters a low-power shutdown mode.
• Power Good (PG): The power good pin provides an indication of the output voltage stability. It goes high when the output voltage is within the specified range.
• Feedback (FB): This pin is used to set the desired output voltage by connecting external resistors.
• Soft Start/Tracking (SS/TR): The soft start pin allows for a controlled startup of the regulator, reducing inrush current. The tracking feature enables synchronization with an external voltage source.
• Switch Node (SW): These pins are connected to the inductor and serve as the switching nodes for the step-down converter.

Advantages and Disadvantages

Advantages

• High efficiency conversion, minimizing power losses.
• Wide input voltage range for versatile applications.
• Adjustable output voltage to meet specific requirements.
• Low quiescent current for battery-powered devices.
• Small package size suitable for space-constrained designs.

Disadvantages

• Limited maximum output current compared to some other regulators.
• Higher switching frequency may introduce additional noise in sensitive applications.

Working Principles

The TPS62091RGTR operates as a synchronous step-down converter. It utilizes a pulse-width modulation (PWM) control scheme to regulate the output voltage. The internal circuitry includes a high-side and low-side MOSFET switch, an inductor, and a feedback loop. The control circuit adjusts the duty cycle of the switches to maintain the desired output voltage.

During operation, the input voltage is stepped down by the inductor, and the energy is stored in its magnetic field. The switches control the flow of current through the inductor, allowing energy transfer to the output capacitor. The feedback loop continuously monitors the output voltage and adjusts the duty cycle accordingly to maintain regulation.

Detailed Application Field Plans

The TPS62091RGTR finds applications in various electronic devices that require efficient voltage conversion. Some common application fields include:

1. Portable Electronics: This IC is suitable for powering smartphones, tablets, portable media players, and other battery-powered devices.
2. IoT Devices: It can be used in Internet of Things (IoT) devices such as sensors, wearables, and smart home devices.
3. Industrial Equipment: The TPS62091RGTR can provide stable power supply in industrial automation systems, motor control units, and instrumentation equipment.
4. Automotive Electronics: It is applicable in automotive applications like infotainment systems, advanced driver-assistance systems (ADAS), and lighting control modules