TPS54425PWPR

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TPS54425PWPR

IC REG BUCK ADJ 4A 14HTSSOP

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規格

Series SWIFT™, D-CAP2™
Part Status Active
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 1
Voltage - Input (Min) 4.5V
Voltage - Input (Max) 18V
Voltage - Output (Min/Fixed) 0.76V
Voltage - Output (Max) 5.5V
Current - Output 4A
Frequency - Switching 700kHz
Synchronous Rectifier Yes
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Package / Case 14-PowerTSSOP (0.173", 4.40mm Width)
Supplier Device Package 14-HTSSOP
Base Product Number TPS54425

概述

Description

The TPS54425PWPR is a high-performance step-down (buck) voltage regulator developed by Texas Instruments. It is designed for applications requiring efficient power conversion from a higher input voltage to a lower output voltage, often used in DC-DC converters for various electronic devices.
Key features of the TPS54425 include a wide input voltage range of 4.5V to 17V, with an adjustable output voltage down to 0.76V, making it suitable for a variety of power supply needs. The device incorporates advanced control techniques to ensure high efficiency, typically up to 95%, and offers features like power good indication, soft start, and overcurrent protection.
It operates with a switching frequency of up to 1 MHz, allowing for smaller external components and a compact design. The TPS54425 is ideal for applications in telecommunications, automotive, and industrial systems, where reliability and efficiency are critical. Its compact package (HTQFP-32) facilitates integration into space-constrained environments.

Features

The TPS54425PWPR is a high-performance DC-DC buck converter designed for point-of-load applications. Key features include:
1. Wide Input Voltage Range: Operates from 4.5V to 17V, making it suitable for various input sources.
2. Adjustable Output Voltage: Provides output voltage options from 0.8V to 5.5V, allowing flexibility in applications.
3. High Efficiency: Achieves up to 95% efficiency, minimizing power loss and thermal output.
4. Load Current Capability: Supports output currents up to 4A, suitable for demanding applications.
5. Compact Package: Available in a 20-pin HTQFP package, enabling space-saving designs.
6. Integrated Compensation: Features internal compensation for simplified design and reduced external component count.
7. Power Good Indicator: Alerts users when the output voltage is within the desired range.
8. Thermal Protection: Includes thermal shutdown to prevent damage from overheating.
These features make the TPS54425PWPR ideal for powering processors, FPGAs, and other digital loads in various electronic systems.

Package

The TPS54425PWPR is packaged in a PowerPAD™ HTQFP-32 (Heat Sink Thin Quad Flat Pack) package. This type of package is designed for high thermal performance and efficient heat dissipation, making it suitable for applications requiring robust thermal management.

Pinout

The TPS54425PWPR is a DC-DC buck converter with a total of 16 pins. It is designed to convert higher input voltages down to lower output voltages, suitable for various applications such as point-of-load power conversion.
The key functions of its pins include:
1. VIN (Pin 1): Input voltage supply.
2. SW (Pins 4, 5): Switch node, connects to the inductor.
3. GND (Pins 6, 10): Ground reference.
4. COMP (Pin 3): Compensation network connection for stability.
5. FB (Pin 2): Feedback voltage input for regulation.
6. VREF (Pin 9): Reference voltage output for precision.
7. EN (Pin 7): Enable input for starting the converter.
8. SS/TR (Pin 8): Soft-start and tracking function.
9. PGND (Pins 11, 12): Power ground for high current paths.
10. BOOT (Pin 13): Bootstrap capacitor connection.
11. RAMP (Pin 14): Ramp waveform generation for control.
12. ISEN+ / ISEN- (Pins 15, 16): Current sense inputs for overcurrent protection.
This configuration makes the TPS54425 versatile for efficient power management in various electronic devices.

Manufacturer

The TPS54425PWPR is manufactured by Texas Instruments (TI), a globally recognized company that specializes in semiconductors and integrated circuit design. Founded in 1930, Texas Instruments is headquartered in Dallas, Texas, and is known for its extensive range of products in analog electronics, embedded processing, and digital signal processing. TI serves a variety of industries, including automotive, industrial, communications, and consumer electronics. The TPS54425 is a step-down (buck) DC-DC converter designed for applications requiring efficient power management.

Application

The TPS54425PWPR is a step-down buck converter suitable for various applications, including power supply for microcontrollers, FPGAs, and DSPs. It is commonly used in industrial automation, telecommunications, automotive electronics, and computer peripherals. Its features, such as high efficiency and adjustable output voltage, make it ideal for powering devices in battery-operated equipment and energy-sensitive applications.

Equivalent

Equivalent products to the TPS54425PWPR include the LM2767, LM2675, and TPS54325. These devices also provide step-down (buck) voltage regulation with similar output voltage and current capabilities, suitable for power management in various applications. Always check the specific electrical characteristics to ensure compatibility for your application.

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