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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - DC DC Switching Regulators

Texas Instruments TPS54616PWPG4

Name: TPS54616PWPG4
Brand: Texas Instruments
SKU: TPS54616PWPG4
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TPS54616PWPG4

Manufacturer:: Texas Instruments

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 28-PowerTSSOP (0.173", 4.40mm Width)

Datasheet:: TPS54616PWPG4.pdf

Description:: IC REG BUCK 3.3V 6A 28HTSSOP

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Product details

Overview

TPS54616PWPG4 from Texas Instruments is a 3-V to 6-V input, 3.3-V fixed-output synchronous buck PWM converter with integrated 30-mΩ high- and low-side MOSFETs, delivering up to 6-A continuous output current. It features internal compensation, 1.0% initial output voltage accuracy at 25°C, powergood monitoring, and thermal shutdown - designed for point-of-load regulation in FPGAs, ASICs, and microprocessors.

For engineers reviewing the TPS54616PWPG4 datasheet, TPS54616PWPG4 pinout, TPS54616PWPG4 application, or TPS54616PWPG4 equivalent, key selection considerations include its 3.3-V fixed output, 28-pin HTSSOP PowerPAD™ package, adjustable switching frequency (280–700 kHz), fast transient response (<20 µs recovery), and integrated current limiting with 100-ns leading-edge blanking.

Technical Context

The TPS54616PWPG4 implements a voltage-mode synchronous buck topology with an internally compensated error amplifier (3–5 MHz unity-gain bandwidth) and adaptive dead-time control to prevent shoot-through. Its PWM comparator uses a feed-forward ramp with 1-V peak-to-peak amplitude and 70–85 ns propagation delay.

It integrates dual 30-mΩ MOSFETs (r_DS(on) tested at 3 A, 3 V and 6 V), supports both fixed-frequency operation (350/550 kHz via FSEL) and externally resistor-programmed frequency (RT pin), and employs cycle-by-cycle overcurrent protection with 200-ns total response time and thermal shutdown at 150°C trip point.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	3.0 V to 6.0 V - supports direct regulation from 3.3-V or 5-V intermediate bus rails without pre-regulation.
Output Voltage	3.3 V ±3.0% over load (0–6 A), temperature (−40°C to 125°C), and line (4–6 V) - meets tight tolerance requirements for I/O supply rails.
Continuous Output Current	6 A - sufficient for powering mid-tier FPGAs and application processors with dynamic load steps.
Switching Frequency	Adjustable 280–700 kHz (via RT resistor) or fixed 350/550 kHz (via FSEL) - enables optimization of size vs. efficiency and EMI performance.
Current Limit Threshold	10–12 A (at VIN = 6 V) - provides robust short-circuit protection while allowing >100% overload margin during transients.
Powergood Accuracy	VSENSE ≥90% V_ref triggers PWRGD high - ensures reliable system reset and sequencing for 3.3-V logic domains.
Thermal Shutdown	150°C trip with 10°C hysteresis - protects against sustained overload or inadequate PCB thermal design.

Pinout & Package

TPS54616PWPG4 is housed in a thermally enhanced 28-pin HTSSOP (PWP) package with exposed PowerPAD™ thermal pad, enabling high-power dissipation (5.49 W at 25°C ambient with soldered pad) without external heatsinks.

Pin/Terminal	Circuit Role	Design Meaning
AGND (Pin 1)	Analog ground reference	Return for SS/ENA capacitor, VBIAS bypass, RT/FSEL bias - must be connected to PowerPAD™ and isolated from noisy PGND planes.
VSENSE (Pin 2)	Error amplifier inverting input	Direct connection to output voltage feedback node - determines regulation accuracy and loop stability.
PWRGD (Pin 4)	Open-drain powergood output	Asserts low if VSENSE < 90% V_ref, UVLO active, or thermal shutdown - used for processor reset and supply sequencing.
BOOT (Pin 5)	Bootstrap supply for high-side driver	Connects to PH via 0.022–0.1-µF ceramic capacitor - enables floating gate drive for integrated high-side MOSFET.
PH (Pins 6–14)	Phase node	Junction of internal high-/low-side MOSFETs and output inductor - carries high di/dt switching current; requires low-inductance layout.
RT (Pin 28)	Frequency-setting resistor input	Resistor to AGND sets switching frequency from 280–700 kHz - enables EMI tuning and inductor size optimization.
SS/ENA (Pin 26)	Slow-start/enable control	Logic-enable threshold at 1.2 V; external capacitor extends soft-start time - prevents inrush current and controls power-up sequencing.
VBIAS (Pin 25)	Bias regulator output	Supplies 2.7–2.9 V to internal circuitry; bypass with 0.1–1-µF ceramic capacitor - critical for noise immunity and startup reliability.
VIN (Pins 20–24)	Main input supply	3–6 V input for power switches and internal LDO - requires local 1–10-µF ceramic bypassing to PGND near each pin.
PGND (Pins 15–19)	Power ground return	High-current return path for low-side MOSFET and output capacitor - must connect to large copper pour and thermal vias to PowerPAD™.

Key Features

Feature	Design Value
Integrated 30-mΩ MOSFETs	Enables compact 6-A solution with no external power switches - reduces BOM count and layout complexity.
Internally compensated control loop	Eliminates need for external compensation components - simplifies design and improves consistency across production units.
Fast transient response	Typical 10–20 µs output voltage recovery from load step - maintains stable 3.3-V rail during FPGA core switching events.
Programmable switching frequency	280–700 kHz range via RT resistor - allows trade-off between inductor size (lower f) and efficiency/EMI (higher f).
Powergood with hysteresis	90% V_ref trip point + 3% hysteresis + 35-µs deglitch - prevents false resets during brief output dips or noise spikes.
Adaptive dead-time control	Prevents shoot-through by delaying high-side turn-on until low-side gate falls below 2 V - improves efficiency and MOSFET reliability.

Applications

Industrial PLC I/O Modules	FPGA Core & I/O Supply
Use Scenario: Regulating 3.3-V I/O banks in programmable logic controllers with variable load profiles and ambient temperatures up to 85°C. IC Role / Device Role / Timing Role: Primary DC/DC converter providing tightly regulated 3.3-V rail with powergood signaling for firmware-controlled I/O enable/disable. Use Value: Internal current limit and thermal shutdown ensure safe operation during field wiring faults or extended overloads without external protection circuitry.	Use Scenario: Delivering 6-A peak current to Xilinx Artix-7 or Intel Cyclone V FPGA I/O banks during configuration and high-speed interface activity. IC Role / Device Role / Timing Role: Point-of-load regulator with fast transient response to suppress voltage droop during simultaneous I/O switching. Use Value: 1.0% initial accuracy and ±3.0% total tolerance guarantee compliance with FPGA I/O voltage specifications across temperature and load.
Networking Switch Line Cards	Embedded Vision Camera Modules
Use Scenario: Powering 3.3-V SerDes interfaces and management controllers on Ethernet switch line cards operating from 5-V backplane. IC Role / Device Role / Timing Role: Secondary regulator with programmable frequency to avoid interference with 125-MHz/156.25-MHz clock domains. Use Value: Adjustable 280–700 kHz switching frequency enables EMI filtering alignment with system clock harmonics.	Use Scenario: Supplying image sensor and ISP interfaces in compact industrial cameras with strict thermal and space constraints. IC Role / Device Role / Timing Role: Compact, thermally efficient 3.3-V supply using PowerPAD™ package to dissipate heat into PCB without heatsink. Use Value: 5.49-W power dissipation rating at 25°C ambient allows full 6-A operation in sealed enclosures with minimal airflow.

Industrial PLC I/O Modules

FPGA Core & I/O Supply

Use Scenario: Regulating 3.3-V I/O banks in programmable logic controllers with variable load profiles and ambient temperatures up to 85°C.

IC Role / Device Role / Timing Role: Primary DC/DC converter providing tightly regulated 3.3-V rail with powergood signaling for firmware-controlled I/O enable/disable.

Use Value: Internal current limit and thermal shutdown ensure safe operation during field wiring faults or extended overloads without external protection circuitry.

Use Scenario: Delivering 6-A peak current to Xilinx Artix-7 or Intel Cyclone V FPGA I/O banks during configuration and high-speed interface activity.

IC Role / Device Role / Timing Role: Point-of-load regulator with fast transient response to suppress voltage droop during simultaneous I/O switching.

Use Value: 1.0% initial accuracy and ±3.0% total tolerance guarantee compliance with FPGA I/O voltage specifications across temperature and load.

Networking Switch Line Cards

Embedded Vision Camera Modules

Use Scenario: Powering 3.3-V SerDes interfaces and management controllers on Ethernet switch line cards operating from 5-V backplane.

IC Role / Device Role / Timing Role: Secondary regulator with programmable frequency to avoid interference with 125-MHz/156.25-MHz clock domains.

Use Value: Adjustable 280–700 kHz switching frequency enables EMI filtering alignment with system clock harmonics.

Use Scenario: Supplying image sensor and ISP interfaces in compact industrial cameras with strict thermal and space constraints.

IC Role / Device Role / Timing Role: Compact, thermally efficient 3.3-V supply using PowerPAD™ package to dissipate heat into PCB without heatsink.

Use Value: 5.49-W power dissipation rating at 25°C ambient allows full 6-A operation in sealed enclosures with minimal airflow.

Equivalent & Alternatives

The following parts are listed as comparable options for similar synchronous buck regulator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS54620RGYT	2-A output, 4.5–17-V input, 3.3-V fixed option; smaller 16-pin QFN; no PowerPAD™ thermal enhancement.	Suitable for lower-current, higher-input-voltage systems where board space is constrained but thermal budget is less demanding.	Select when input exceeds 6 V or output current ≤2 A; not drop-in due to different pinout, voltage range, and thermal design.
MP2315GJ-Z	6-A output, 4.5–26-V input, adjustable output (0.8–15 V); external compensation; no integrated powergood.	Used in wide-input industrial supplies where flexibility in output voltage and external loop tuning is required.	Choose for >6-V input or adjustable VOUT needs; lacks PWRGD and internal compensation - requires additional components and design effort.

Compared with TPS54616PWPG4, TPS54620RGYT offers higher input voltage support but lower current and no PowerPAD™, while MP2315GJ-Z provides wider input range and adjustability at the cost of added complexity and missing powergood functionality.

Availability

TPS54616PWPG4 is available at Aetrix Electronics and suitable for industrial PLCs, FPGA-based accelerators, networking line cards, and embedded vision systems requiring stable component supply and long-term production continuity.

Supply support for TPS54616PWPG4 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management ICs, with decades of expertise in high-efficiency DC/DC conversion.

The TPS5461x family was designed specifically for low-voltage, high-current point-of-load applications in computing, communications, and industrial systems - emphasizing integration, thermal performance, and ease of use.

FAQ

What is the maximum continuous output current of the TPS54616PWPG4?

The TPS54616PWPG4 delivers up to 6 A of continuous output current under recommended operating conditions (T_J ≤ 125°C, V_IN = 3–6 V). This rating assumes proper PCB thermal design with soldered PowerPAD™ and adequate copper area. Derating applies above 70°C ambient per the dissipation ratings table in the datasheet.

Does the TPS54616PWPG4 require external compensation components?

No, the TPS54616PWPG4 features internal compensation optimized for standard output filter configurations. Users can select inductors from 4.7 µH to 10 µH and standard output capacitors without adding external compensation network components - significantly simplifying design and improving production consistency.

How does the powergood (PWRGD) function work on the TPS54616PWPG4?

The TPS54616PWPG4's open-drain PWRGD pin asserts high only when VSENSE ≥ 90% of the internal reference voltage, VIN ≥ UVLO threshold (2.95 V), SS/ENA is enabled, and thermal shutdown is inactive. It includes 3% hysteresis and a 35-µs falling-edge deglitch to prevent false triggering - making it reliable for processor reset and supply sequencing.

Can the switching frequency of the TPS54616PWPG4 be adjusted, and how?

Yes, the TPS54616PWPG4 supports both fixed and adjustable frequencies. Tie FSEL low for 350 kHz or high for 550 kHz. For 280–700 kHz, float FSEL and connect a resistor from RT to AGND (e.g., 100 kΩ yields ~500 kHz). The frequency equation is f ≈ 100 kHz × (100 kΩ / R), with typical tolerance ±10%.

What thermal performance can be expected from the TPS54616PWPG4 in a standard PCB layout?

With a 3″×3″, 4-layer PCB per JEDEC standards (1.5 oz top/bottom copper, 12 thermal vias to PowerPAD™), the TPS54616PWPG4 achieves 18.2°C/W junction-to-ambient thermal resistance. At 25°C ambient, it sustains 5.49 W dissipation - sufficient for full 6-A operation at typical efficiencies (>90% at 5 V_IN/3.3 V_OUT).

TPS54616PWPG4 Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: SWIFT™

Package/Case:: 28-PowerTSSOP (0.173", 4.40mm Width)

Packaging:: Tube

Product Status:: Obsolete

Function:: Step-Down

Output Configuration:: Positive

Topology:: Buck

Output Type:: Fixed

Number of Outputs:: 1

Voltage - Input (Min):: 3V

Voltage - Input (Max):: 6V

Voltage - Output (Min/Fixed):: 3.3V

Voltage - Output (Max):: -

Current - Output:: 6A

Frequency - Switching:: 350kHz, 550kHz

Synchronous Rectifier:: Yes

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 28-HTSSOP

TPS54616PWPG4 FAQ

1.How can I place an order for TPS54616PWPG4 through Aetrix?

Please submit a Request for Quotation (RFQ) for TPS54616PWPG4 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for TPS54616PWPG4 reliable?

The price and inventory of TPS54616PWPG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS54616PWPG4 is usually 5 days.

3.What payment methods are accepted for TPS54616PWPG4?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS54616PWPG4 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TPS54616PWPG4?

TPS54616PWPG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TPS54616PWPG4 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for TPS54616PWPG4?

For technical support, including TPS54616PWPG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS54616PWPG4 requirements.

6.How does Aetrix verify that TPS54616PWPG4 is sourced from the original manufacturer or authorized distributors?

All TPS54616PWPG4 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS54616PWPG4 meets industry standards.

7.What is the process for return or replacement of TPS54616PWPG4?

All TPS54616PWPG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS54616PWPG4, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The TPS54616PWPG4 part is unused and in its original packaging.

Return procedure for TPS54616PWPG4:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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