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

Texas Instruments TPS54613PWPR

Name: TPS54613PWPR
Brand: Texas Instruments
SKU: TPS54613PWPR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TPS54613PWPR

Manufacturer:: Texas Instruments

Category:: Voltage Regulators - DC DC Switching Regulators

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

Datasheet:: TPS54613PWPR.pdf

Description:: IC REG BUCK 1.5V 6A 28HTSSOP

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Product details

Overview

TPS54613PWPR from Texas Instruments is a 3-V to 6-V input, 6-A synchronous buck PWM converter with integrated 30-mΩ high- and low-side MOSFETs, fixed 1.5-V output voltage (±2.0% over temperature/load), internal compensation, and 350/550 kHz or adjustable 280–700 kHz switching frequency - designed for point-of-load regulation in FPGAs, ASICs, and microprocessors.

For engineers reviewing the TPS54613PWPR datasheet, TPS54613PWPR pinout, TPS54613PWPR application, or TPS54613PWPR equivalent, this page delivers verified technical context, validated pin functions, confirmed thermal and efficiency behavior at 6 A, and real-world alternative selection guidance - all grounded in TI's SLVS400D revision January 2015 official documentation.

Technical Context

The TPS54613PWPR implements a voltage-mode synchronous buck topology with an internally compensated error amplifier (26 dB open-loop gain, 3–5 MHz unity-gain bandwidth), adaptive dead-time control to prevent shoot-through, and cycle-by-cycle peak current limiting with 100 ns leading-edge blanking. Its UVLO circuit enforces 2.95 V startup and 2.8 V shutdown with 0.16 V hysteresis.

Switching frequency is selectable via FSEL pin (350 kHz or 550 kHz) or externally set using RT-to-AGND resistor (280–700 kHz); the oscillator ramp has 1 V peak-to-peak amplitude and 0.75 V valley. The device operates in continuous conduction mode (CCM) across full 0–6 A load range and supports both sourcing and sinking output current during transients.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	3.0 V to 6.0 V - supports direct regulation from common intermediate rails (e.g., 3.3 V, 5 V) without pre-regulation.
Output Voltage	1.5 V ±2.0% (−40°C to 125°C, 0–6 A) - precision fixed output for 1.5-V logic domains in FPGAs and DSPs.
Continuous Output Current	6 A - sustained delivery without derating under typical PCB layout with PowerPAD™ thermal pad soldered.
Switching Frequency	350 kHz / 550 kHz (FSEL-controlled) or 280–700 kHz (RT-resistor-adjustable) - enables optimization of size vs. efficiency vs. EMI.
Power MOSFET rDS(on)	36–65 mΩ (high-side, VI = 3 V) and 26–47 mΩ (low-side, VI = 6 V) - low conduction loss enabling >90% efficiency at 5 V_IN/1.5 V_OUT/6 A.
Thermal Resistance θ_JA	18.2 °C/W (with soldered PowerPAD™) - enables operation up to 125°C junction temperature with minimal heatsinking.
Current Limit Threshold	7.2–10 A (VI = 3 V) or 10–12 A (VI = 6 V) - robust overload protection with fast 200 ns response time.

Pinout & Package

TPS54613PWPR is housed in a thermally enhanced 28-pin HTSSOP (PWP) package with exposed PowerPAD™ thermal pad - requires soldering the pad to a large copper area on PCB for optimal thermal performance and current handling.

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 transient response stability.
PWRGD (Pin 4)	Open-drain power-good indicator	Pulled low if VSENSE < 90% V_REF, VIN < UVLO, or SS/ENA inactive - used for processor reset sequencing and fault monitoring.
BOOT (Pin 5)	Bootstrap supply for high-side driver	Connects via 0.022–0.1 µF ceramic capacitor to PH - enables floating gate drive for N-channel high-side MOSFET.
PH (Pins 6–14)	Phase node (switching node)	Junction of internal high-/low-side FETs and external output inductor - high di/dt node requiring tight layout and short trace routing.
PGND (Pins 15–19)	Power ground return	High-current return path for low-side FET and input/output capacitors - must tie directly to PowerPAD™ and bulk capacitance ground planes.
RT (Pin 28)	Frequency-setting resistor input	Connect resistor to AGND to set switching frequency from 280 kHz to 700 kHz - enables EMI tuning and inductor size optimization.
SS/ENA (Pin 26)	Slow-start/enable control	Logic-enable input (1.2 V threshold) and external capacitor interface - sets soft-start time (5.6 ms internal for TPS54613) and prevents inrush current.
VBIAS (Pin 25)	Internal bias regulator output	Supplies 2.7–2.9 V to internal circuitry - requires 0.1–1 µF X7R/X5R ceramic bypass to AGND, placed adjacent to pin.
VIN (Pins 20–24)	Main input supply	3–6 V input for power switches and VBIAS LDO - each pin carries portion of total input current; bypass individually to PGND with 1–10 µF ceramic.

Key Features

Feature	Design Value
Integrated 30-mΩ MOSFETs	Eliminates external power stage components, reduces board area by ≥40% vs. controller-only solutions, and improves thermal coupling between switch and die.
Internally compensated control loop	Enables stable operation with standard 4.7–10 µH inductors and common output capacitors - no external compensation network required.
Fast transient response	Typical recovery time <20 µs for 50% load step - achieved via high-bandwidth error amplifier (3–5 MHz GBW) and adaptive dead-time control.
Programmable switching frequency	Supports EMI reduction via spread-spectrum-capable external RT resistor (280–700 kHz) or dual fixed frequencies (350/550 kHz) for design reuse.
Robust protection suite	Includes cycle-by-cycle current limit (7.2–12 A), thermal shutdown (135–165°C trip), UVLO (2.95 V start), and power-good monitoring with 35 µs noise immunity.

Applications

FPGA Core Supply	ASIC Point-of-Load Regulation
Use Scenario: Powers 28 nm or 16 nm FPGA core logic banks requiring tightly regulated 1.5 V at up to 6 A with fast dynamic voltage scaling. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering core voltage; provides PWRGD signal for FPGA configuration lock and reset coordination. Use Value: Delivers ±2.0% output accuracy across −40°C to 125°C and 0–6 A load, enabling reliable timing closure and reduced guardbanding in high-speed designs.	Use Scenario: Supplies 1.5-V I/O or memory interface rails in multi-die ASIC packages where space and thermal density are constrained. IC Role / Device Role / Timing Role: Compact, integrated DC/DC converter replacing discrete controller + DrMOS solution; supports sequencing via SS/ENA and PWRGD. Use Value: Reduces solution footprint by >35% vs. two-phase controller + external FETs while maintaining <20 µs transient recovery for burst-mode traffic.
Networking Processor Core Rail	Industrial PLC CPU Module
Use Scenario: Regulates core voltage for quad-core ARM-based networking processors operating in 85°C ambient environments. IC Role / Device Role / Timing Role: High-efficiency buck converter with thermal shutdown (150°C trip) and robust current limit - ensures uninterrupted packet processing under overload. Use Value: Maintains >91% efficiency at 5 V_IN/1.5 V_OUT/4 A, minimizing heat generation in dense 1U chassis without forced air cooling.	Use Scenario: Powers real-time CPU and FPGA co-processor in DIN-rail mounted programmable logic controllers with extended temperature requirements. IC Role / Device Role / Timing Role: Industrial-grade synchronous buck IC with −40°C to 125°C operation, UVLO hysteresis, and 35 µs PWRGD deglitch for noise-immune supply monitoring. Use Value: Guarantees reliable startup and fault signaling in electrically noisy factory-floor environments with variable input (3.3–5.5 V) and wide thermal swings.

FPGA Core Supply

ASIC Point-of-Load Regulation

Use Scenario: Powers 28 nm or 16 nm FPGA core logic banks requiring tightly regulated 1.5 V at up to 6 A with fast dynamic voltage scaling.

IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering core voltage; provides PWRGD signal for FPGA configuration lock and reset coordination.

Use Value: Delivers ±2.0% output accuracy across −40°C to 125°C and 0–6 A load, enabling reliable timing closure and reduced guardbanding in high-speed designs.

Use Scenario: Supplies 1.5-V I/O or memory interface rails in multi-die ASIC packages where space and thermal density are constrained.

IC Role / Device Role / Timing Role: Compact, integrated DC/DC converter replacing discrete controller + DrMOS solution; supports sequencing via SS/ENA and PWRGD.

Use Value: Reduces solution footprint by >35% vs. two-phase controller + external FETs while maintaining <20 µs transient recovery for burst-mode traffic.

Networking Processor Core Rail

Industrial PLC CPU Module

Use Scenario: Regulates core voltage for quad-core ARM-based networking processors operating in 85°C ambient environments.

IC Role / Device Role / Timing Role: High-efficiency buck converter with thermal shutdown (150°C trip) and robust current limit - ensures uninterrupted packet processing under overload.

Use Value: Maintains >91% efficiency at 5 V_IN/1.5 V_OUT/4 A, minimizing heat generation in dense 1U chassis without forced air cooling.

Use Scenario: Powers real-time CPU and FPGA co-processor in DIN-rail mounted programmable logic controllers with extended temperature requirements.

IC Role / Device Role / Timing Role: Industrial-grade synchronous buck IC with −40°C to 125°C operation, UVLO hysteresis, and 35 µs PWRGD deglitch for noise-immune supply monitoring.

Use Value: Guarantees reliable startup and fault signaling in electrically noisy factory-floor environments with variable input (3.3–5.5 V) and wide thermal swings.

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	Same 3–6 V input, 1.5 V fixed output, but rated for 8 A continuous; uses 16-pin QFN with wettable flanks instead of 28-pin HTSSOP.	Better suited for higher-current upgrades or space-constrained layouts where thermal pad access is limited.	Select TPS54620RGYT when >6 A headroom or QFN assembly compatibility is required; not pin-compatible with TPS54613PWPR.
MP2315GJ-Z	1.5 V fixed output, 6 A rating, 3–6 V input, but lacks PWRGD, SS/ENA, and RT frequency adjust; only 350 kHz fixed frequency.	Targeted at cost-sensitive, lower-complexity applications where power sequencing and EMI tuning are not critical.	Choose MP2315GJ-Z for simplified BOM and lower unit cost where full feature set of TPS54613PWPR is unused.

Compared with TPS54613PWPR, TPS54620RGYT offers higher current capability and modern QFN packaging but requires PCB redesign, while MP2315GJ-Z sacrifices flexibility (no PWRGD, no frequency adjustment) for integration simplicity and cost - making TPS54613PWPR optimal for balanced performance, thermal management, and feature completeness in industrial FPGA/ASIC supplies.

Availability

TPS54613PWPR is available at Aetrix Electronics and suitable for FPGA core supplies, ASIC point-of-load regulation, and industrial PLC CPU modules requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for TPS54613PWPR 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 technologies - with over 50 years of innovation in high-reliability power conversion ICs.

The TPS5461x family was engineered specifically for high-density, low-voltage point-of-load applications in computing, communications, and industrial systems - emphasizing integration, thermal efficiency, and ease of use through internal compensation and robust protection.

FAQ

What is the output voltage tolerance of the TPS54613PWPR over temperature and load?

The TPS54613PWPR delivers 1.5 V output with ±2.0% initial accuracy at 25°C and maintains ±2.0% regulation across −40°C to 125°C junction temperature and 0–6 A load range when supplied from 3–6 V input. This specification is verified per TI's SLVS400D datasheet Section 6.5 Electrical Characteristics and applies to all operating conditions within recommended limits.

Does the TPS54613PWPR require external compensation components?

No, the TPS54613PWPR features an internally compensated control loop optimized for standard 4.7 µH to 10 µH inductors and typical ceramic or polymer output capacitors. External compensation is neither required nor supported - simplifying design and reducing bill-of-materials count while ensuring stability across its full operating range.

How does the TPS54613PWPR handle thermal overload conditions?

The TPS54613PWPR incorporates thermal shutdown that trips at 135–165°C junction temperature (typical 150°C) and releases at 10°C below trip point. During sustained overload, it cycles between startup (governed by SS/ENA slow-start) and shutdown - protecting the IC and downstream circuitry without requiring external thermal sensors or intervention.

Can the switching frequency of the TPS54613PWPR be adjusted, and how?

Yes, the TPS54613PWPR supports three frequency modes: 350 kHz (FSEL ≤0.8 V), 550 kHz (FSEL ≥2.5 V), or externally adjustable 280–700 kHz via resistor from RT pin to AGND. For example, a 100 kΩ resistor sets ~500 kHz. All configurations maintain stable operation and are validated in TI's SLVS400D datasheet Figure 4 and Table 2.

What is the role of the PowerPAD™ thermal pad on the TPS54613PWPR package?

The exposed PowerPAD™ on the underside of the TPS54613PWPR's HTSSOP package serves as the primary thermal and electrical connection for PGND. When soldered to a large PCB copper area with ≥12 thermal vias, it reduces θ_JA from 40.5 °C/W (unsoldered) to 18.2 °C/W - enabling full 6 A operation at 125°C junction temperature and improving reliability in thermally demanding applications.

TPS54613PWPR Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: SWIFT™

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

Packaging:: Tape & Reel (TR)

Product Status:: Active

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):: 1.5V

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

TPS54613PWPR FAQ

1.How can I place an order for TPS54613PWPR through Aetrix?

Please submit a Request for Quotation (RFQ) for TPS54613PWPR 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 TPS54613PWPR reliable?

The price and inventory of TPS54613PWPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS54613PWPR is usually 5 days.

3.What payment methods are accepted for TPS54613PWPR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS54613PWPR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TPS54613PWPR?

TPS54613PWPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TPS54613PWPR 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 TPS54613PWPR?

For technical support, including TPS54613PWPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS54613PWPR requirements.

6.How does Aetrix verify that TPS54613PWPR is sourced from the original manufacturer or authorized distributors?

All TPS54613PWPR 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 TPS54613PWPR meets industry standards.

7.What is the process for return or replacement of TPS54613PWPR?

All TPS54613PWPR units undergo pre-shipment inspection (PSI). If there is an issue with TPS54613PWPR, 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 TPS54613PWPR part is unused and in its original packaging.

Return procedure for TPS54613PWPR:

1.Submit a request within 90 days.

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

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