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Texas Instruments TPS62874QWRZVRQ1
- Part No.:
- TPS62874QWRZVRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 24-PowerWFQFN
- Datasheet:
-
TPS62874QWRZVRQ1.pdf
- Description:
- IC REG BUCK ADJ 15A 24WQFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TPS62874QWRZVRQ1 from Texas Instruments is a 15A automotive-grade synchronous step-down DC/DC converter with I²C interface, differential remote sense, and fast transient response. It operates from 2.7V–6V input, delivers 0.4V–1.675V output with ±0.8% accuracy, and integrates 2.6mΩ/1.5mΩ power MOSFETs for high-efficiency operation in ADAS camera power rails.
For engineers reviewing the TPS62874QWRZVRQ1 datasheet, TPS62874QWRZVRQ1 pinout, TPS62874QWRZVRQ1 application, or TPS62874QWRZVRQ1 equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification (–40°C to 125°C ambient), selectable 1.5/2.25/2.5/3MHz switching frequency via FSEL pin, forced-PWM/power-save mode control, and I²C-configurable voltage scaling for dynamic load power management.
Technical Context
The TPS62874QWRZVRQ1 implements a fixed-frequency DCS-Control™ architecture optimized for sub-100ns load transient response in safety-critical automotive systems. Its dual-stage error amplifier supports external compensation and enables precise regulation across wide VIN/VOUT combinations while maintaining stability under varying thermal and layout conditions.
Differential remote sensing (VOSNS/GOSNS) compensates for PCB IR drop, achieving ±0.8% DC output accuracy at point-of-load. The device supports stacked operation via SYNC_OUT/MODE-SYNC daisy-chaining and provides thermal pre-warning (150°C) and shutdown (170°C) with 20°C hysteresis for robust system-level protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 15A continuous - supports high-power ADAS SoCs without derating at 125°C ambient. |
| Input Voltage Range | 2.7V to 6V - compatible with 3.3V, 5V, and battery-supplied automotive rails including cold-crank scenarios. |
| Output Voltage Accuracy | ±0.8% - ensures stable core voltage for vision processors and AI accelerators under full load and temperature range. |
| Switching Frequency | Selectable 1.5/2.25/2.5/3MHz - enables compact magnetics and EMI optimization without sacrificing transient performance. |
| Power MOSFET RDS(on) | 2.6mΩ (HS) / 1.5mΩ (LS) - minimizes conduction loss and thermal rise in high-current 12mm² WQFN-FCRLF package. |
| I²C Interface Speed | Up to 3.4MHz (high-speed mode) - allows rapid dynamic voltage scaling during processor DVFS transitions. |
| Thermal Protection | 150°C thermal warning + 170°C shutdown - provides fail-safe margin for junction temperatures up to 150°C. |
Pinout & Package
RZV package: 24-pin WQFN-FCRLF (3.05mm × 4.05mm) with exposed thermal pad soldered to GND for optimal thermal resistance (RθJB = 6.5°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOSNS | Differential output voltage sense positive | Connects to point-of-load VOUT to enable precision regulation independent of PCB trace resistance. |
| GOSNS | Differential output voltage sense negative | Connects to point-of-load GND return path to close remote-sense loop and cancel IR drop error. |
| FSEL | Switching frequency select input | Resistor-to-GND/VIN sets nominal fSW; enables EMI tuning without changing external components. |
| VSEL | Startup output voltage select input | Configures default VOUT at power-on via resistor divider; also defines I²C address (0x44–0x47). |
| MODE/SYNC | Operating mode control & external sync input | Pull-low = power-save mode; pull-high = forced-PWM; accepts external clock for phase-aligned multi-rail systems. |
| SYNC_OUT | Internal clock output | Drives MODE/SYNC of next device in stacked configuration; supports 120° or 180° phase shift for current sharing. |
| SDA / SCL | I²C bidirectional data/clock | Enable real-time monitoring of output voltage, temperature warnings, and programmable register access. |
| PG | Open-drain power-good indicator | Signals valid regulation window (92–108% VOUT); wired-OR capable for stacked system status reporting. |
Key Features
| Feature | Design Value |
|---|---|
| Differential remote sensing | Compensates for up to 100mV PCB IR drop, maintaining ±0.8% output accuracy at load instead of regulator output. |
| Stacked operation support | Enables parallel connection of up to three TPS6287x-Q1 devices using SYNC_OUT/MODE-SYNC daisy-chain for >15A total current. |
| Programmable soft-start | Four ramp time options (0.35–2.6ms) via CONTROL2[1:0] register to prevent inrush current in multi-rail systems. |
| Spread spectrum clocking | Reduces peak EMI by ±10% frequency modulation at fSSC = fSW/2048, easing compliance with CISPR 25 Class 5 limits. |
| Thermal pre-warning | Asserts interrupt flag at 150°C junction temperature, enabling firmware-controlled throttling before thermal shutdown at 170°C. |
Applications
| ADAS Camera Power Rail | Surround View ECU |
|---|---|
|
Use Scenario: Powers 8MP+ image sensors and ISP SoCs in front/rear/side cameras requiring tight voltage tolerance and fast load transients during auto-exposure changes. IC Role / Device Role / Timing Role: Primary point-of-load regulator delivering 0.8V/1.1V core and I/O supplies with differential remote sense and I²C-based dynamic voltage scaling. Use Value: Maintains ±0.8% output accuracy under 10A step loads with <100ns recovery, preventing sensor frame corruption or ISP lockup. |
Use Scenario: Supplies multiple vision processors in 360° surround-view ECUs where thermal density and EMI must be minimized across four synchronized camera channels. IC Role / Device Role / Timing Role: Stacked pair of TPS62874QWRZVRQ1 devices operating at 2.25MHz with 180° phase shift to reduce input ripple and thermal hotspots. Use Value: Enables 30A combined output with 50% lower input capacitor RMS current versus single-phase operation, extending capacitor lifetime. |
| Hybrid Digital Cluster | Head Unit Application Processor |
|
Use Scenario: Powers reconfigurable GPU and display controller in next-gen digital instrument clusters requiring seamless transition between analog/digital rendering modes. IC Role / Device Role / Timing Role: I²C-configurable buck converter adjusting VDD_GPU from 0.75V (idle) to 0.95V (rendering) within 100µs via register write. Use Value: Reduces GPU dynamic power by 35% during low-activity states while maintaining sub-1% voltage deviation during mode switches. |
Use Scenario: Supplies main application processor (e.g., Qualcomm SA8155P) in automotive head units with strict EMI and thermal constraints in confined dash space. IC Role / Device Role / Timing Role: Single TPS62874QWRZVRQ1 operating in forced-PWM mode at 3MHz with spread spectrum to meet CISPR 25 radiated emissions limits. Use Value: Achieves >92% efficiency at 12A/1.0V while limiting peak EMI amplitude by 12dB compared to fixed-frequency operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62875QWRZVRQ1 | 20A rated output current; higher ILIM thresholds (24–32A HS, 20–29A LS); identical pinout and feature set. | Suitable for higher-power ADAS domains like sensor fusion ECUs requiring >15A sustained current. | Select when design requires ≥18A continuous output with no PCB change; shares same layout and firmware interface. |
| MPQ8645PGU-AEC1-Z | 15A monolithic buck with integrated inductor; no I²C interface; fixed 2.2MHz fSW; ±1.5% VOUT accuracy. | Better suited for space-constrained modules where BOM count reduction outweighs programmability needs. | Choose for simplified layout and reduced component count where remote sense, thermal warning, and dynamic voltage scaling are not required. |
Compared with TPS62874QWRZVRQ1, the TPS62875QWRZVRQ1 offers higher current headroom in identical footprint, while MPQ8645PGU-AEC1-Z trades configurability for integration-making the former ideal for scalable platforms and the latter for cost-optimized modules.
Availability
TPS62874QWRZVRQ1 is available at Aetrix Electronics and suitable for ADAS camera power rails, surround-view ECUs, and hybrid digital cluster designs requiring stable component supply, AEC-Q100 compliance, and functional safety documentation support.
Supply support for TPS62874QWRZVRQ1 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 and embedded processing technologies, with deep expertise in automotive power management and functional safety solutions.
The TPS6287x-Q1 product line was designed specifically for high-current, low-voltage power delivery in ASIL-B/C automotive domains-including camera, radar, and domain controller applications-where fast transient response, remote sensing, and I²C configurability are mandatory.
FAQ
What is the maximum junction temperature rating for the TPS62874QWRZVRQ1?
The TPS62874QWRZVRQ1 has a maximum operating junction temperature of 150°C, with thermal shutdown triggered at 170°C and thermal warning asserted at 150°C. This allows reliable operation in engine bay–adjacent ADAS modules where ambient temperatures reach 125°C, provided board-level thermal design achieves RθJB ≤ 6.5°C/W per datasheet specifications.
Does the TPS62874QWRZVRQ1 support differential remote sensing, and how is it implemented?
Yes, the TPS62874QWRZVRQ1 supports true differential remote sensing using dedicated VOSNS and GOSNS pins. These connect directly to the load's VOUT and PGND nodes, enabling the IC to regulate voltage precisely at the point-of-load and maintain ±0.8% DC accuracy despite PCB trace resistance-critical for vision processor core rails.
How does the I²C interface of the TPS62874QWRZVRQ1 differ from standard implementations?
The TPS62874QWRZVRQ1 supports high-speed I²C mode up to 3.4MHz, enabling sub-100µs register writes for dynamic voltage scaling. It uses configurable I²C addresses (0x44–0x47) set by VSEL pin state and provides dedicated registers for voltage monitoring, thermal warnings, and fault status-extending beyond basic PMBus compatibility into functional safety diagnostics.
Can the TPS62874QWRZVRQ1 be used in stacked configurations, and what are the requirements?
Yes, the TPS62874QWRZVRQ1 supports daisy-chained stacking via SYNC_OUT → MODE/SYNC interconnection. Up to three devices can be synchronized with 120° or 180° phase shift. All EN pins must be tied together, COMP pins joined externally, and PG pins wired-OR'd. Primary/secondary roles are defined by SYNC_OUT-to-GND resistor on secondary units.
What are the key differences between the TPS62874QWRZVRQ1 and TPS62874B1QWRZVRQ1 variants?
The TPS62874B1QWRZVRQ1 enables droop compensation (DROOPEN = 1) and transient non-synchronous mode, improving current sharing in stacked configurations under fast load steps. The base TPS62874QWRZVRQ1 defaults to DROOPEN = 0 and uses standard DCS-Control™-making it optimal for single-rail applications where simplicity and minimal latency are prioritized.
TPS62874QWRZVRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 24-PowerWFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 0.4V
- Voltage - Output (Max):
- 1.675V
- 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:
- 24-WQFN-FCRLF (4.05x3.05)
TPS62874QWRZVRQ1 FAQ
1.How can I place an order for TPS62874QWRZVRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62874QWRZVRQ1 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 TPS62874QWRZVRQ1 reliable?
The price and inventory of TPS62874QWRZVRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62874QWRZVRQ1 is usually 5 days.
3.What payment methods are accepted for TPS62874QWRZVRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62874QWRZVRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62874QWRZVRQ1?
TPS62874QWRZVRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62874QWRZVRQ1 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 TPS62874QWRZVRQ1?
For technical support, including TPS62874QWRZVRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62874QWRZVRQ1 requirements.
6.How does Aetrix verify that TPS62874QWRZVRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS62874QWRZVRQ1 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 TPS62874QWRZVRQ1 meets industry standards.
7.What is the process for return or replacement of TPS62874QWRZVRQ1?
All TPS62874QWRZVRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62874QWRZVRQ1, 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 TPS62874QWRZVRQ1 part is unused and in its original packaging.
Return procedure for TPS62874QWRZVRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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