TPS65251RHA

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TPS65251RHA

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

  • メーカーSTマイクロエレクトロニクス

  • メーカー品番 #TPS65251RHA

  • パッケージ VQFN-40

  • 在庫状況3284

365 日間品質保証

7*24 日間の品質保証

90-時間単位のサービス保証

1日間のアフターサービス保証

仕様

属性
Package / Case Tube
Part Status Obsolete
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 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
Synchronous Rectifier Yes
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount

概要

Description

The TPS65251RHA is a power management integrated circuit (PMIC) designed by Texas Instruments. It is commonly used for efficient power delivery in a variety of embedded systems and applications requiring multiple regulated voltage rails. The device integrates three synchronous buck converters, allowing it to convert a higher input voltage (up to 18V) to lower output voltages, with each converter capable of delivering up to 3A, 2A, and 2A, respectively. This makes it suitable for powering microcontrollers, processors, FPGAs, and other digital or analog components.
The TPS65251RHA offers flexibility in design with features such as adjustable switching frequency, soft-start, and power sequencing. It also includes protection mechanisms like over-current, over-voltage, and thermal shutdown to ensure reliable operation. With a compact design and minimal external components required, it is ideal for applications in industrial, automotive, and consumer electronics sectors. The device comes in a thermally enhanced HTSSOP package, ensuring efficient heat dissipation and improved performance.

Equivalent

The TPS65251RHA is a multi-channel power management IC by Texas Instruments. Its equivalent products include:
1. LM3150 - by Texas Instruments: A simple switcher controller.
2. MAX16909 - by Maxim Integrated: Power management ICs for automotive applications.
3. LTC3851A - by Analog Devices: A step-down DC/DC controller.
4. RT8259 - by Richtek: A synchronous step-down regulator.
5. MPQ8633 - by Monolithic Power Systems: A high-frequency, synchronous step-down converter.
These alternatives may differ in exact specifications, so reviewing datasheets is advisable for compatibility.

Features

The TPS65251RHA is a power management IC designed for a variety of applications requiring efficient power supply management. Key features include:
1. Triple Synchronous Step-Down Converters: It integrates three converters, each capable of handling up to 3 A of output current, allowing for simultaneous power supply to different components.
2. Wide Input Voltage Range: Supports an input voltage range of 4.5 V to 18 V, suitable for diverse power sources.
3. Adjustable Switching Frequency: Offers a selectable switching frequency ranging from 250 kHz to 2.2 MHz to optimize efficiency and size.
4. High Efficiency: Provides high-efficiency power conversion, critical for battery-powered and energy-conscious devices.
5. Power Sequencing: Incorporates power sequencing and soft-start capabilities for controlled power-up and enhanced system reliability.
6. Protection Features: Includes over-current protection, thermal shutdown, and under-voltage lockout to safeguard the system from operational anomalies.
7. Compact Package: Available in a thermally efficient, space-saving VQFN package.
These features make the TPS65251RHA suitable for use in consumer electronics, industrial applications, and any system that requires multiple regulated supply voltages.

Pinout

The TPS65251RHA is a power management integrated circuit (PMIC) from Texas Instruments. It comes in a 40-pin VQFN (Very Thin Quad Flat No-lead) package. This PMIC is designed to provide three synchronous buck converters with integrated FETs, which are ideal for powering microcontrollers, FPGAs, or DSPs in various applications.
The key functions of the TPS65251RHA include:
1. Three Buck Converters: Each can be independently set to operate at a specific output voltage, allowing for flexible power management.
2. High Efficiency: With integrated power FETs and optimized for low-loss operation.
3. Wide Input Voltage Range: Supports multiple power sources.
4. Sequencing and Tracking: Allows for precise power-up and power-down sequencing of the converters.
5. Programmable Switching Frequency: Provides flexibility for efficiency optimization.
6. Protection Features: Includes overcurrent, thermal shutdown, and undervoltage lockout.
The combination of these features makes the TPS65251RHA suitable for a wide range of applications requiring efficient and reliable power management solutions.

Manufacturer

The TPS65251RHA is manufactured by Texas Instruments (TI). Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits, which are sold to electronics designers and manufacturers globally. TI is one of the largest semiconductor companies in the world and is particularly known for its analog chips and embedded processors, which are used in a wide variety of electronic devices and applications. The company focuses on developing innovative technologies in areas such as analog and digital signal processing, power management, microcontrollers, and other electronic components. TI serves a broad range of markets, including industrial, automotive, personal electronics, communications, and enterprise systems.

Application

The TPS65251RHA is a versatile power management IC designed for applications requiring efficient power conversion and management. Key application areas include:
1. Consumer Electronics: Supports power management in devices like TVs, set-top boxes, and gaming consoles.
2. Industrial Equipment: Used in automation systems and motor drives for stable power delivery.
3. Communications Infrastructure: Provides power regulation in networking equipment, routers, and base stations.
4. Computing Systems: Powers motherboards and peripheral devices in computers and servers.
5. Automotive Electronics: Supports infotainment systems and advanced driver-assistance systems (ADAS).
Its flexibility with multiple output voltages and high efficiency makes it suitable for various applications requiring reliable power management.

Package

The TPS65251RHA is a Power Management IC from Texas Instruments, packaged in a 40-pin, 6.00 x 6.00 mm, VQFN (Very Thin Quad Flat No-Lead) package.