TPS81256SIPR

Product Overview

Category

The TPS81256SIPR belongs to the category of integrated circuits (ICs) and specifically falls under the voltage regulators category.

Use

This product is primarily used for voltage regulation in various electronic devices and systems. It provides a stable output voltage, making it suitable for applications that require precise power supply.

Characteristics

• High efficiency: The TPS81256SIPR offers high conversion efficiency, minimizing power losses during voltage regulation.
• Wide input voltage range: It can accept a wide range of input voltages, allowing flexibility in different power supply scenarios.
• Low quiescent current: The device has a low standby current consumption, ensuring efficient power management even during idle periods.
• Adjustable output voltage: The output voltage can be adjusted according to the specific requirements of the application.

Package

The TPS81256SIPR comes in a small outline integrated circuit (SOIC) package. This package type provides ease of handling and compatibility with standard PCB manufacturing processes.

Essence

The essence of the TPS81256SIPR lies in its ability to efficiently regulate voltage, providing a stable power supply for electronic devices and systems.

Packaging/Quantity

The TPS81256SIPR is typically packaged in reels or tubes, depending on the manufacturer's packaging standards. The quantity per reel or tube may vary but is usually around 250 units.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 0.8V to 4.5V
• Output Current: Up to 2A
• Efficiency: Up to 95%
• Quiescent Current: 30µA (typical)
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The TPS81256SIPR has the following pin configuration:

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. VOUT: Output voltage pin

Functional Features

• Wide input voltage range allows compatibility with various power sources.
• Adjustable output voltage enables customization for different application requirements.
• Power good indicator (PG) provides a signal indicating stable output voltage.
• Enable pin (EN) allows control of the device's operation, enabling power-saving modes when necessary.
• Overcurrent and thermal protection features ensure safe operation under abnormal conditions.

Advantages and Disadvantages

Advantages

• High efficiency reduces power losses and improves overall system performance.
• Wide input voltage range enhances flexibility in power supply design.
• Low quiescent current minimizes standby power consumption.
• Compact SOIC package facilitates easy integration into PCB designs.

Disadvantages

• Limited output current may not be suitable for high-power applications.
• Temperature range limitations restrict usage in extreme environments.

Working Principles

The TPS81256SIPR utilizes a switching regulator architecture to regulate the output voltage. It employs a pulse-width modulation (PWM) control scheme to adjust the duty cycle of the internal power switch, thereby regulating the output voltage based on the feedback received from the FB pin. The switching frequency is typically set at a fixed value to optimize efficiency and minimize output voltage ripple.

Detailed Application Field Plans

The TPS81256SIPR finds applications in various electronic devices and systems, including but not limited to: - Battery-powered portable devices such as smartphones, tablets, and wearable devices. - Industrial automation systems requiring stable power supply for sensors and control circuits. - Automotive electronics for powering infotainment systems, navigation devices, and advanced driver-assistance systems (ADAS). - IoT (Internet of Things) devices that rely on efficient power management for extended battery life.

Detailed and Complete Alternative Models

1. TPS61220: A similar voltage regulator with a lower input voltage range but higher output current capability.
2. LM2576: A buck converter IC suitable for applications requiring higher output currents and wider input voltage ranges.
3. LT1763: A low dropout (LDO) linear regulator offering precise voltage regulation with low quiescent current.

These alternative models provide different specifications and features, allowing designers to choose the most suitable option based on their specific application requirements.

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