TPS65251RHA

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TPS65251RHA

IC REG BCK ADJ 3A/2A TRPL 40VQFN

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規格

Package Tube
ProductStatus Obsolete
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Adjustable
NumberofOutputs 3
Voltage-Input(Min) 4.5V
Voltage-Input(Max) 18V
Voltage-Output(Min/Fixed) 0.8V
Voltage-Output(Max) 18V
Current-Output 3A, 2A
Frequency-Switching 300kHz ~ 2.2MHz
SynchronousRectifier Yes
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case 40-VFQFN Exposed Pad

概述

Description

The TPS65251RHA is a power management integrated circuit (PMIC) designed by Texas Instruments. It is part of the TPS65251 series, which is engineered to manage multiple power rails in a compact and efficient manner. This IC is particularly well-suited for applications requiring multiple output voltages, such as telecom, industrial, and consumer electronics.
Key features of the TPS65251RHA include three synchronous buck converters capable of delivering up to 3 A per channel, with a wide input voltage range typically from 4.5 V to 18 V. It offers high efficiency across various loads, adjustable switching frequency, and integrated power MOSFETs, which help in minimizing external component count and reducing overall footprint.
The device supports features like soft start, power sequencing, and overcurrent protection, ensuring reliable operation under various conditions. Its flexibility with voltage programming and sequencing enhances the suitability for a broad range of power management solutions.
In summary, the TPS65251RHA is a versatile PMIC that provides robust power management capabilities for complex multi-rail systems, delivering efficiency and reliability in a compact package.

Features

The TPS65251RHA is a versatile power management IC from Texas Instruments, designed for a variety of applications. Key features include:
1. Triple Synchronous Buck Converters: It offers three adjustable output voltage rails, providing flexibility for powering multiple components.

2. Wide Input Voltage Range: Operates from 4.5 V to 18 V, making it suitable for various power sources.
3. High Efficiency: Achieves up to 95% efficiency with low RDS(on) integrated MOSFETs.
4. Adjustable Switching Frequency: The frequency can be set between 250 kHz to 2.2 MHz, allowing optimization for efficiency or size.
5. Current Mode Control: Offers fast transient response and easy loop compensation.
6. Soft Start and Tracking: Includes features for sequencing and controlled startup to prevent inrush current.
7. Protection Features: Provides overcurrent, undervoltage, and thermal shutdown protections to ensure reliability.
8. Compact Package: Available in a space-saving 32-pin VQFN package, ideal for space-constrained designs.
These features make the TPS65251RHA suitable for applications in industrial, consumer electronics, and telecommunication systems.

Package

The TPS65251RHA is a power management IC from Texas Instruments. It is typically housed in a 40-pin VQFN (Very Thin Quad Flat No-Lead) package, which is designed for efficient thermal performance and compact size.

Pinout

The TPS65251RHA is a power management IC from Texas Instruments. It is designed for a variety of applications, including but not limited to, consumer electronics, automotive, and industrial systems. The device comes in a 40-pin VQFN package.
The functions of the TPS65251RHA include:
1. Triple Buck Converter: It features three integrated synchronous buck converters. These converters are used to step down the input voltage to the desired output voltage levels.
2. Wide Input Voltage Range: The device supports a wide input voltage range, making it versatile for different power supply configurations.
3. High Efficiency: The converters are designed to be highly efficient, which helps in minimizing power loss and heat generation.
4. Adjustable Switching Frequency: The switching frequency can be set by the user, allowing for flexibility in terms of performance and efficiency optimization.
5. Protection Features: It includes various protection features such as over-current protection, under-voltage lockout, and thermal shutdown to ensure reliable operation.
6. Flexible Sequencing: The device supports flexible sequencing options for the converters, enabling proper power-up and power-down sequences for different applications.

Manufacturer

The TPS65251RHA is manufactured by Texas Instruments, an American technology company. Texas Instruments is known for designing and manufacturing semiconductors and various integrated circuits, which are used in various electronic devices. The company is one of the largest semiconductor companies in the world and operates in several segments, including analog and embedded processing.

Application

The TPS65251RHA is a versatile DC-DC power management solution commonly used in various applications, including telecommunications, industrial equipment, and automotive systems. It efficiently manages power supply needs for microcontrollers, FPGAs, DSPs, and other embedded systems. Its ability to support multiple output voltages and high efficiency makes it ideal for use in power distribution systems, portable electronics, and any application requiring robust power management with minimal space.

Equivalent

The TPS65251RHA is a multi-output, step-down DC-DC converter from Texas Instruments. Equivalent products might include similar triple-output buck converters from manufacturers like Analog Devices, Maxim Integrated, or Monolithic Power Systems. Specific models to consider as equivalents could include Analog Devices' ADP5050, Maxim Integrated's MAX15053, or Monolithic Power Systems' MP28258, depending on the exact specifications and requirements such as voltage, current, and additional features. Always compare electrical characteristics and features to ensure compatibility.

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