Texas Instruments

TPS40021PWPR

TPS40021PWPR Description

The TPS40021PWPR is a high-performance, single-output, step-down (buck) switching regulator controller designed for applications requiring high efficiency and low quiescent current. Manufactured by Texas Instruments, this device is part of the DC-DC Switching Controllers category and is packaged in a 16-lead HTSSOP package. Although it is marked as "Not For New Designs," it remains a viable option for existing designs or specific applications where its unique features are required.

TPS40021PWPR Features

• Output Type: Transistor Driver with a Positive Output Configuration.
• Product Status: Not For New Designs, indicating that while it is still available, it may not be the manufacturer's recommended choice for new projects.
• Frequency - Switching: Operates within a broad range of 100kHz to 1MHz, providing flexibility in design.
• REACH Status: REACH Unaffected, ensuring compliance with European chemical regulations.
• Voltage - Supply (Vcc/Vdd): Accepts a wide supply voltage range from 2.25V to 5.5V.
• RoHS Status: Compliant with ROHS3, adhering to environmental standards.
• Moisture Sensitivity Level (MSL): Rated at level 2, indicating a 1-year shelf life under specified conditions.
• Synchronous Rectifier: Yes, enhancing efficiency by using a synchronous rectification technique.
• ECCN: EAR99, for export control classification.
• Topology: Buck, suitable for reducing input voltage to a lower, stable output voltage.
• Mounting Type: Surface Mount
• Clock Sync: Yes, allowing for synchronization with an external clock signal.
• Number of Outputs: 1, making it suitable for single-output applications.
• Control Features: Includes Current Limit, Enable, Frequency Control, Power Good, and Soft Start for comprehensive control over the regulator's operation.
• Duty Cycle (Max): Can handle up to 95% duty cycle, which is beneficial for high-voltage input applications.
• Output Phases: 1, indicating a single-phase output.
• HTSUS: 8542.39.0001, for tariff classification.
• Package: Tape & Reel (TR), facilitating automated handling and placement.

TPS40021PWPR Applications

The TPS40021PWPR is ideal for a variety of applications where efficient power conversion and stable output voltage are critical. Some specific use cases include:

• Portable Electronics: Due to its low quiescent current and small form factor, it is suitable for battery-powered devices.
• Industrial Controls: The wide input voltage range and high efficiency make it a good fit for industrial applications with varying power sources.
• Telecommunications: Reliable for providing stable power to communication equipment where efficiency and heat management are concerns.

Conclusion of TPS40021PWPR

While the TPS40021PWPR is marked as "Not For New Designs," it remains a robust solution for existing applications or specific use cases that can benefit from its unique feature set. Its wide input voltage range, high efficiency, and comprehensive control features make it a reliable choice for designers looking to leverage a proven, though mature, technology in their power management solutions.