TPS564208DDCR

TPS564208DDCR | Texas Instruments 4-A Synchronous Buck Regulator in SOT-23-6 (DDC)

The Texas Instruments TPS564208DDCR is a compact, high-current, synchronous buck (step-down) DC-DC converter engineered for point-of-load regulation from common 12-V and 5-V rails. With a wide 4.5-V to 17-V input range, 4-A output capability, and an adjustable output, it integrates both high-side and low-side MOSFETs to minimize external component count and board footprint. Housed in a 6-pin SOT-23 (DDC) package for surface-mount assembly, the TPS564208DDCR is well-suited to space-constrained industrial and consumer designs that demand dependable, efficient power delivery.

This article consolidates essential information about the TPS564208DDCR for engineers, buyers, and sourcing teams—covering specifications, applications, lifecycle and compliance, design-in considerations, and practical FAQs. When deeper electrical details are required (for example, switching frequency, compensation behavior, or protection thresholds), consult the official TI datasheet and product page linked below.

Key Highlights at a Glance

• Manufacturer/Brand: Texas Instruments
• MPN: TPS564208DDCR
• Category: Power Management > DC-DC Converters (Buck)
• Topology: Synchronous buck (step-down)
• Input voltage range: 4.5 V to 17 V
• Output current: Up to 4 A
• Output type: Adjustable
• Package: SOT-23-6 (DDC), surface-mount
• Packaging: Tape & Reel (TR)
• Pin count: 6
• Lifecycle status: Active
• RoHS status: RoHS Compliant

Overview

The TPS564208DDCR addresses the perennial need for efficient, compact point-of-load regulation in systems powered from intermediate rails. By integrating both the high-side and low-side MOSFETs, the device reduces the power train’s external component count and enables tight placements in dense PCBs. Its synchronous architecture helps improve efficiency compared to asynchronous buck regulators, supporting better thermal performance and potentially lower system cost in the power stage.

Texas Instruments positions the TPS564208DDCR for a broad spectrum of uses—from embedded controllers and communications modules to industrial control, consumer devices, and other general-purpose step-down designs. Because the output is adjustable, a single part can be re-used across multiple rails in a platform, simplifying qualification and procurement.

Specifications

The following parameters are taken directly from the provided product data. For any characteristic not listed here, refer to the TI datasheet.

• Manufacturer: Texas Instruments
• MPN: TPS564208DDCR
• Topology: Synchronous buck (step-down)
• Input voltage range: 4.5 V to 17 V
• Output current: 4 A
• Output type: Adjustable
• Package: SOT-23-6 (DDC)
• Pin count: 6
• Mounting type: Surface mount
• Packaging: Tape & Reel (TR)
• Lifecycle status: Active
• RoHS status: RoHS Compliant

Not specified in provided data (check the datasheet):

• Switching frequency
• Efficiency across load and VIN
• Minimum/maximum adjustable VOUT range
• Feedback reference voltage and tolerance
• Protections (OVP/UVP/OCP/OTP/UVLO specifics)
• Soft start, power-good behavior, and sequencing features
• Junction temperature range and thermal metrics
• Quiescent/standby current characteristics

Applications

The TPS564208DDCR is intended for a wide range of point-of-load (POL) conversions where efficiency and board area matter:

• Point-of-load regulation on embedded and modular platforms
• General-purpose step-down conversion from 12-V or 5-V rails
• Industrial and consumer electronics requiring compact, efficient DC-DC regulation
• Powering MCUs, FPGAs, sensors, communication modules, and peripheral subsystems (sizing and limits per datasheet)

Because the device supports up to 4 A output current and an adjustable output, it fits well in systems consolidating multiple rails on a single board, enabling a standardized design approach with fewer unique power components.

Benefits for Design and Sourcing Teams

• Integration and simplicity: The integrated high-side and low-side MOSFETs reduce external part count versus controllers or asynchronous converters, lowering solution size and potentially improving time-to-market.
• Versatility: With a 4.5-V to 17-V input range and adjustable output, a single regulator can serve multiple rails as requirements evolve.
• Compact footprint: The SOT-23-6 (DDC) package offers a small, surface-mount solution suitable for dense layouts and small form factors.
• Procurement clarity: Active lifecycle status and RoHS compliance help streamline qualification, while the Tape & Reel format supports automated assembly.

Design-In Considerations

While the TPS564208DDCR simplifies implementation, optimal performance depends on proper component selection and PCB layout. The following are general best practices; consult the datasheet for specific limits and equations.

• Inductor selection: Choose an inductor with appropriate saturation current and ripple current margins for a 4-A design. Ensure the inductor’s DC resistance and core characteristics support efficiency and thermal goals.
• Output capacitors: Select low-ESR capacitors with adequate ripple current capability and voltage rating. Stability and transient response depend on output capacitor characteristics; reference TI’s guidance in the datasheet.
• Input decoupling: Place high-quality ceramic capacitors close to the VIN and ground pins to contain switching currents and reduce EMI.
• Feedback network: For adjustable output, use precision resistors and place the feedback divider close to the IC to minimize noise pickup. Follow recommended routing to isolate FB from the switch node.
• Layout and thermal: Keep the high di/dt loop area small by placing the input capacitor, inductor, and IC close together. Use a solid ground reference and short, wide traces for the power path. Thermal performance benefits from copper pours and thermal vias to dissipate heat.
• Start-up and sequencing: If the system requires specific sequencing or tracking, review datasheet notes around enable/UVLO and soft-start behavior (not specified in the provided data) and coordinate with other rails accordingly.
• EMI considerations: Maintain tight switching loops, minimize parasitic inductance, and consider input/output filtering as needed for your compliance targets.

Package, Assembly, and Handling

• Package: SOT-23-6 (DDC)
• Pin count: 6
• Mounting: Surface mount
• Packaging: Tape & Reel (TR)

The 6-pin SOT-23 (DDC) package is widely supported across contract manufacturers and assembly houses. Standard SMT profiles and inspection practices apply. Handle per TI’s moisture sensitivity and ESD recommendations; consult the datasheet and packaging documentation for MSL and handling specifics (not provided in the data).

Lifecycle and Replacement Guidance

• Lifecycle status: Active (per provided data)
• Official replacements or pin-to-pin alternatives: Not specified in provided data

As of the provided information, TPS564208DDCR is active, which is favorable for long-term programs. If you are evaluating multi-sourcing or second sources, use TI’s parametric search and cross-reference tools to identify compatible regulators based on your exact electrical and mechanical requirements. Always verify pinout, control scheme, compensation approach, protections, and thermal performance before treating any part as a drop-in replacement.

Compliance and Environmental Status

• RoHS status: RoHS Compliant
• REACH or other environmental disclosures: Not specified in provided data

If your program mandates specific environmental or material declarations, consult TI’s product page for up-to-date documentation, including material content and any restriction-of-substances statements beyond RoHS.

Supply Chain and Sourcing Notes

• Inventory quantity (this listing): 0 units reported
• Packaging: Tape & Reel (TR) supports automated pick-and-place

Given the 0-unit inventory reported here, we recommend checking TI-authorized distributors and TI’s product page for live availability. When planning production ramps, consider placing NCNR orders early, qualifying alternates where appropriate, and validating second-source options at the design stage. Keep safety stock for critical rails that cannot be easily redesigned.

If you require specific date codes, PPAP/PCN coverage, or export compliance details, coordinate those requirements with distributors or TI before release to manufacturing.

Typical Use Cases

• Converting 12 V to an adjustable low-voltage rail for logic, processors, or communication modules
• Stepping down from a 5-V backplane or USB-derived intermediate rail to sub-5-V loads
• Powering sensor clusters, RF front ends, or actuators that demand up to 4 A
• Distributed point-of-load conversion in modular systems, SBCs, and gateways

These examples reflect common step-down scenarios; always confirm your load current, thermal budget, and timing needs against the datasheet limits.

Practical Selection Checklist

Use this quick checklist when deciding if the Texas Instruments TPS564208DDCR fits your design:

• VIN available is within 4.5 V to 17 V
• Load current requirement is at or below 4 A with appropriate margin
• Adjustable output is preferred to support multiple rail voltages
• Board space is limited, and a 6-pin SOT-23 (DDC) package is acceptable
• Lifecycle status must be Active and RoHS compliance is required
• Synchronous topology benefits your efficiency and thermal targets

If any of these items are not met or you need specific features (for example, exact switching frequency or dedicated power-good pin), verify the details in the TI datasheet or evaluate alternative TI buck converters that list those features explicitly.

Documentation and Resources

• TI Product Page: https://www.ti.com/product/TPS564208
• Datasheet: https://www.ti.com/lit/ds/symlink/tps564208.pdf

Refer to these resources for electrical characteristics, application notes, evaluation hardware (if available), and layout examples.

Frequently Asked Questions (FAQs)

Q: What is the input voltage range of the TPS564208DDCR?
A: 4.5 V to 17 V, per the provided product data.

Q: How much output current can it supply?
A: Up to 4 A, according to the provided data.

Q: Is the output voltage fixed or adjustable?
A: Adjustable. Refer to the datasheet for the supported VOUT range and feedback network guidance.

Q: What package is used for the TPS564208DDCR?
A: SOT-23-6 (DDC), a compact 6-pin surface-mount package.

Q: Is the device RoHS compliant?
A: Yes, it is listed as RoHS Compliant in the provided information. Other environmental declarations were not specified.

Q: What is the lifecycle status?
A: Active, based on the provided data. Always verify current status on TI’s product page before committing to long-term production.

Q: Are protection features like overcurrent or thermal shutdown available?
A: Not specified in the provided data. Consult the datasheet for the full list of protections and fault behavior.

Q: What switching frequency does it use?
A: Not specified in the provided data. See the datasheet for frequency information and any synchronization options.

Q: Is there an evaluation module (EVM) available?
A: Not specified in the provided data. Check the TI product page for available evaluation hardware and application notes.

Summary

The Texas Instruments TPS564208DDCR is a versatile, 4-A synchronous buck regulator built for compact, efficient point-of-load conversion from 12-V and 5-V rails. Its adjustable output, 4.5-V to 17-V input range, and integrated MOSFETs in a small SOT-23-6 (DDC) package make it a strong fit for industrial and consumer designs alike. With an Active lifecycle status and RoHS compliance, it aligns well with long-term procurement goals. For precise electrical parameters and design equations, rely on the official TI datasheet and product page to validate performance and finalize component selections.

Information compiled from Texas Instruments (ti.com). If specific electrical parameters (e.g., switching frequency, efficiency, Vout range) are required, consult the datasheet.