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

Texas Instruments TPS62873N0QWRXSRQ1

Name: TPS62873N0QWRXSRQ1
Brand: Texas Instruments
SKU: TPS62873N0QWRXSRQ1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TPS62873N0QWRXSRQ1

Manufacturer:: Texas Instruments

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 16-TFQFN Exposed Pad

Datasheet:: TPS62873N0QWRXSRQ1.pdf

Description:: IC REG BUCK PROG 15A 16VQFN

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Product details

Overview

TPS62873N0QWRXSRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive synchronous step-down DC/DC converter delivering up to 15A continuous output current, supporting 2.7V–6V input, ±1% output voltage accuracy with differential remote sensing, and resistor-selectable switching frequencies of 1.5/2.25/2.5/3.0 MHz - designed for FPGA, ASIC, and DDR memory core supplies in infotainment and ADAS systems.

For engineers reviewing the TPS62873N0QWRXSRQ1 datasheet, TPS62873N0QWRXSRQ1 pinout, TPS62873N0QWRXSRQ1 application, or TPS62873N0QWRXSRQ1 equivalent, key selection criteria include its 15A current rating, absence of I²C interface (N0 variant), fixed factory-startup voltage of 1.050V, spread-spectrum clocking capability, and VQFN-FCRLF (RXS) 16-pin wettable-flank package with thermal pad.

Technical Context

The TPS62873N0QWRXSRQ1 implements a fixed-frequency DCS-Control topology optimized for fast load transients and low output voltage ripple. It operates in either power-save mode (for peak efficiency at light loads) or forced-PWM mode (for consistent switching and minimal ripple), with MODE/SYNC pin control and optional external clock synchronization.

Differential remote sensing (VOSNS/GOSNS) enables precise point-of-load regulation, maintaining better than ±1% DC accuracy across temperature and load. Its stackable architecture allows parallel operation with identical TPS62873x-Q1 devices to scale current beyond 15A while distributing thermal load - requiring matched current ratings and coordinated EN/PG/SYNC_OUT interconnection.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Current	15A continuous - supports high-power digital cores without derating at +125°C ambient.
Input Voltage Range	2.7V to 6V - compatible with automotive 3.3V/5V rails and post-regulated battery domains.
Output Voltage Accuracy	±1% - guaranteed over full temperature (-40°C to +125°C) and line/load conditions via remote sense.
Switching Frequency	Resistor-selectable: 1.5 / 2.25 / 2.5 / 3.0 MHz - enables optimization of size (higher fSW → smaller L/C) vs. efficiency.
FET R_DS(on)	7 mΩ (HS) / 4.5 mΩ (LS) - minimizes conduction loss and thermal rise at 15A output.
Startup Voltage	1.050V (factory-set via VSEL = 47kΩ to VIN) - defines default output voltage before I²C programming (not applicable here).
Thermal Protection	Thermal warning at 150°C TJ, shutdown at 170°C TJ - ensures safe operation under sustained overload or poor airflow.

Pinout & Package

TPS62873N0QWRXSRQ1 uses a 2.55mm × 3.55mm × 1mm VQFN-FCRLF (RXS) package with wettable flanks and an exposed thermal pad soldered to GND for optimal thermal performance (R_θJA = 28°C/W on EVM layout).

Pin/Terminal	Circuit Role	Design Meaning
COMP	Control loop compensation node	Connects external RC network to GOSNS; in stacked configs, all COMP pins must be tied together.
VOSNS / GOSNS	Differential output voltage sense inputs	Enable point-of-load regulation; reject PCB trace IR drop for ±1% accuracy at load.
EN	Enable input (active-high)	Requires ≥15kΩ series resistor; enables/disables converter and controls soft-start timing (1ms default).
MODE/SYNC	Operating mode select / sync input	Pull low for power-save mode; pull high for forced-PWM; accepts external clock (1.3–3.3 MHz) for synchronization.
PG	Open-drain power-good output	Signals valid output (92–98% UV / 102–108% OV window); tied together in stacked operation (primary only drives).
VSEL / FSEL	Startup voltage / frequency select	Resistor-programmed (47kΩ to VIN sets 1.050V startup; same resistor sets fSW per datasheet table).
SDA / SCL	I²C interface pins	Must be connected to GND - inactive in N0 variant; no I²C functionality enabled.
VIN / GND / SW	Power input / ground / switch node	VIN pins (5 & 9) require local ceramic decoupling; SW connects to external inductor; thermal pad = GND.

Key Features

Feature	Design Value
Differential remote sensing	Maintains ±1% output accuracy at point-of-load despite PCB resistance, critical for sub-1V FPGA/ASIC rails.
Stackable 15A architecture	Enables >15A solutions (e.g., 30A with two units) while balancing thermal dissipation across multiple ICs.
Resistor-configurable switching frequency	Four discrete fSW options (1.5–3.0 MHz) allow trade-off between inductor size, efficiency, and EMI profile.
Active output discharge	Provides controlled 50–200 mA constant-current or 6 Ω resistive discharge to prevent floating outputs during shutdown.
Spread-spectrum clocking	Reduces peak EMI by modulating fSW ±10% at f_mod = f_SW/2048 - enabled by default in N0 variants.
AEC-Q100 Grade 1 qualification	Validated for automotive use from –40°C to +125°C ambient, including lifetime reliability and HTOL testing.

Applications

Infotainment Power Supply	ADAS Domain Controller
Use Scenario: Powers SoC, GPU, and display interfaces in automotive head units and digital clusters. IC Role / Device Role / Timing Role: Primary core supply regulator delivering stable 0.75V–1.2V at up to 15A with fast transient response to burst workloads. Use Value: Differential sensing maintains voltage accuracy at processor die, preventing brownouts during video rendering or AI inference bursts.	Use Scenario: Supplies radar, camera, and sensor fusion processors in autonomous driving ECUs. IC Role / Device Role / Timing Role: High-current, low-noise buck converter with thermal warning for safety-critical real-time compute. Use Value: 150°C thermal warning flag enables system-level fault mitigation before shutdown, supporting ASIL-B compliance.
FPGA Core Voltage Rail	DDR Memory Subsystem
Use Scenario: Generates configurable core voltage (e.g., 0.85V) for Xilinx/Zynq or Intel Agilex FPGAs in vehicle computing. IC Role / Device Role / Timing Role: Precision step-down regulator with programmable soft-start and remote sense for tight tolerance rails. Use Value: ±1% DC accuracy and <0.5ms output ramp time ensure reliable FPGA configuration and avoid bitstream corruption.	Use Scenario: Delivers 1.1V/1.2V at up to 15A to LPDDR4/5 memory banks in telematics and gateway modules. IC Role / Device Role / Timing Role: High-efficiency buck converter with low output ripple (<10 mV_pp) for signal integrity in high-speed memory buses. Use Value: Forced-PWM mode eliminates subharmonic noise, preserving DDR timing margins and reducing BER in data transfers.

Infotainment Power Supply

ADAS Domain Controller

Use Scenario: Powers SoC, GPU, and display interfaces in automotive head units and digital clusters.

IC Role / Device Role / Timing Role: Primary core supply regulator delivering stable 0.75V–1.2V at up to 15A with fast transient response to burst workloads.

Use Value: Differential sensing maintains voltage accuracy at processor die, preventing brownouts during video rendering or AI inference bursts.

Use Scenario: Supplies radar, camera, and sensor fusion processors in autonomous driving ECUs.

IC Role / Device Role / Timing Role: High-current, low-noise buck converter with thermal warning for safety-critical real-time compute.

Use Value: 150°C thermal warning flag enables system-level fault mitigation before shutdown, supporting ASIL-B compliance.

FPGA Core Voltage Rail

DDR Memory Subsystem

Use Scenario: Generates configurable core voltage (e.g., 0.85V) for Xilinx/Zynq or Intel Agilex FPGAs in vehicle computing.

IC Role / Device Role / Timing Role: Precision step-down regulator with programmable soft-start and remote sense for tight tolerance rails.

Use Value: ±1% DC accuracy and <0.5ms output ramp time ensure reliable FPGA configuration and avoid bitstream corruption.

Use Scenario: Delivers 1.1V/1.2V at up to 15A to LPDDR4/5 memory banks in telematics and gateway modules.

IC Role / Device Role / Timing Role: High-efficiency buck converter with low output ripple (<10 mV_pp) for signal integrity in high-speed memory buses.

Use Value: Forced-PWM mode eliminates subharmonic noise, preserving DDR timing margins and reducing BER in data transfers.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-current automotive buck converter applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS62873Y1QWRXSRQ1	I²C interface enabled; default startup voltage = 0.800V; I²C address = 0x43.	Required when dynamic voltage scaling (DVS), telemetry monitoring, or firmware-controlled sequencing is needed.	Select Y1 if runtime reconfiguration or telemetry (voltage/temp) via I²C is required; otherwise N0 reduces BOM count and layout complexity.
TPS62872N0QWRXSRQ1	12A rated; identical pinout/package; same N0 feature set (no I²C, spread-spectrum on, 1ms soft-start).	Suitable where 12A suffices and thermal/power budget constraints favor lower current density.	Choose N0 variant of TPS62872-Q1 for cost-sensitive or thermally constrained 12A designs; shares layout compatibility.

Compared with TPS62873N0QWRXSRQ1, the TPS62873Y1QWRXSRQ1 adds I²C configurability at the cost of two unused pins tied to GND, while TPS62872N0QWRXSRQ1 offers 20% lower current capacity in the same footprint - enabling scalable design reuse across 12A/15A platforms without layout revision.

Availability

TPS62873N0QWRXSRQ1 is available at Aetrix Electronics and suitable for infotainment systems, ADAS domain controllers, and FPGA-based vehicle computing platforms requiring stable component supply, long-term automotive lifecycle support, and AEC-Q100-compliant sourcing.

Supply support for TPS62873N0QWRXSRQ1 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 automotive-grade power management ICs, with decades of automotive qualification expertise and functional safety documentation support.

The TPS6287x-Q1 product line delivers high-current, fast-transient synchronous buck converters for automotive digital cores - engineered for AEC-Q100 Grade 1 operation, differential sensing, and stackable scalability in safety-critical systems.

FAQ

What is the maximum continuous output current of the TPS62873N0QWRXSRQ1?

The TPS62873N0QWRXSRQ1 delivers up to 15A continuous output current under recommended operating conditions (TJ ≤ 150°C, proper PCB layout, and adequate airflow). This rating is validated across the full –40°C to +125°C ambient range and accounts for internal FET R_DS(on) of 7 mΩ (HS) and 4.5 mΩ (LS) at 3.3V input.

Does the TPS62873N0QWRXSRQ1 support I²C communication?

No, the TPS62873N0QWRXSRQ1 is the non-I²C variant of the family. Its SDA and SCL pins must be connected to GND per datasheet requirements. All I²C functionality - including voltage adjustment, telemetry readback, and register access - is disabled. For I²C capability, select TPS62873Y1QWRXSRQ1 or other Yx variants.

What is the default startup output voltage of the TPS62873N0QWRXSRQ1?

The TPS62873N0QWRXSRQ1 has a factory-set startup output voltage of 1.050V, configured by internal logic tied to the VSEL pin connection (47kΩ to VIN). This value is fixed and cannot be altered without hardware modification; it applies before any external programming - though no I²C interface exists to change it.

Can multiple TPS62873N0QWRXSRQ1 devices be stacked to increase current capacity?

Yes, the TPS62873N0QWRXSRQ1 supports stacking with identical TPS62873x-Q1 devices (e.g., another TPS62873N0QWRXSRQ1) to deliver >15A. Stacking requires interconnecting EN, PG, COMP, VOSNS, GOSNS, and SYNC_OUT pins per TI's layout guidelines, and mandates matching current ratings to prevent imbalance and premature current limiting.

What package type and thermal characteristics does the TPS62873N0QWRXSRQ1 use?

The TPS62873N0QWRXSRQ1 uses a 16-pin VQFN-FCRLF (RXS) package measuring 2.55mm × 3.55mm × 1mm with wettable flanks and an exposed thermal pad. On an evaluation board, its junction-to-ambient thermal resistance (R_θJA) is 28°C/W, and the thermal pad must be soldered to a solid GND plane to achieve rated performance and reliability.

TPS62873N0QWRXSRQ1 Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: TPS6287x-Q1

Package/Case:: 16-TFQFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Function:: Step-Down

Output Configuration:: Positive

Topology:: Buck

Output Type:: Programmable

Number of Outputs:: 1

Voltage - Input (Min):: 2.7V

Voltage - Input (Max):: 6V

Voltage - Output (Min/Fixed):: 0.4V

Voltage - Output (Max):: 3.35V

Current - Output:: 15A

Frequency - Switching:: 1.5MHz, 2.25MHz, 2.5MHz, 3MHz

Synchronous Rectifier:: Yes

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

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount, Wettable Flank

Supplier Device Package:: 16-VQFN (2.55x3.55)

TPS62873N0QWRXSRQ1 FAQ

1.How can I place an order for TPS62873N0QWRXSRQ1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TPS62873N0QWRXSRQ1 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 TPS62873N0QWRXSRQ1 reliable?

The price and inventory of TPS62873N0QWRXSRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62873N0QWRXSRQ1 is usually 5 days.

3.What payment methods are accepted for TPS62873N0QWRXSRQ1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62873N0QWRXSRQ1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TPS62873N0QWRXSRQ1?

TPS62873N0QWRXSRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TPS62873N0QWRXSRQ1 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 TPS62873N0QWRXSRQ1?

For technical support, including TPS62873N0QWRXSRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62873N0QWRXSRQ1 requirements.

6.How does Aetrix verify that TPS62873N0QWRXSRQ1 is sourced from the original manufacturer or authorized distributors?

All TPS62873N0QWRXSRQ1 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 TPS62873N0QWRXSRQ1 meets industry standards.

7.What is the process for return or replacement of TPS62873N0QWRXSRQ1?

All TPS62873N0QWRXSRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62873N0QWRXSRQ1, 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 TPS62873N0QWRXSRQ1 part is unused and in its original packaging.

Return procedure for TPS62873N0QWRXSRQ1:

1.Submit a request within 90 days.

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

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