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Texas Instruments TPS62875B2QWRZVRQ1
- Part No.:
- TPS62875B2QWRZVRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 24-PowerWFQFN
- Datasheet:
-
TPS62875B2QWRZVRQ1.pdf
- Description:
- IC REG BUCK ADJ 20A 24WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,901
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Product details
Overview
TPS62875B2QWRZVRQ1 from Texas Instruments is a 20A, AEC-Q100 Grade-1 automotive synchronous step-down converter with I²C interface, differential remote sense, and selectable 1.5–3MHz switching frequency. It delivers ±0.8% DC output voltage accuracy across 0.4V–1.675V range and supports forced-PWM or power-save mode for ADAS camera power rails requiring fast transient response and thermal robustness up to 150°C junction temperature.
For engineers reviewing the TPS62875B2QWRZVRQ1 datasheet, TPS62875B2QWRZVRQ1 pinout, TPS62875B2QWRZVRQ1 application, or TPS62875B2QWRZVRQ1 equivalent, key selection criteria include its 20A current rating, RZV (WQFN-FCRLF-24) package with thermal pad, I²C programmability for dynamic voltage scaling, differential remote sensing for point-of-load regulation, and functional safety documentation support.
Technical Context
The TPS62875B2QWRZVRQ1 implements a fixed-frequency DCS-Control™ architecture enabling sub-10µs load transient response with minimal output capacitance. Its dual MOSFET power stage features 2.6mΩ high-side and 1.5mΩ low-side RDS(on) at 3.3V input, optimized for high-efficiency operation in 2.7V–6V automotive battery-supplied systems.
It supports stacked configuration via SYNC_OUT/MODE-SYNC daisy-chaining, differential VOSNS/GOSNS sensing for ±0.8% regulation accuracy, and I²C interface (up to 3.4MHz) for real-time voltage/temperature monitoring, soft-start control, and droop compensation enablement-critical for hybrid cluster and telematics control unit power domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 20A continuous - supports high-power ADAS SoCs without external current sharing circuitry. |
| Input Voltage Range | 2.7V to 6V - compatible with 3.3V/5V intermediate bus and direct 12V battery-derived rails via pre-regulator. |
| Output Voltage Range | 0.4V to 1.675V with ±0.8% DC accuracy - enables precise core voltage regulation for automotive processors and image sensors. |
| Switching Frequency | Selectable 1.5/2.25/2.5/3MHz via FSEL pin - allows EMI optimization and inductor size reduction while maintaining fast transient performance. |
| I²C Interface Speed | Up to 3.4MHz (high-speed mode) - enables rapid voltage updates during dynamic performance scaling in head units and ECUs. |
| Junction Temperature Range | –40°C to +150°C - meets AEC-Q100 Grade-1 requirements for under-hood and infotainment applications. |
| Thermal Shutdown Threshold | 170°C with 20°C hysteresis - provides robust overtemperature protection during sustained high-load operation. |
Pinout & Package
RZV package: 24-pin WQFN-FCRLF (3.05mm × 4.05mm) with exposed thermal pad soldered to GND for optimal thermal dissipation (RθJA = 28°C/W on EVM).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOSNS | Differential output voltage sense (+) | Connects to regulated rail's positive side; enables ±0.8% accuracy with remote sensing compensation. |
| GOSNS | Differential output voltage sense (–) | Connects to load ground reference; rejects PCB IR drop for true point-of-load regulation. |
| SW | Power switch node | Drives external LC filter; requires low-inductance layout due to high di/dt (20A peak). |
| VIN | Main power input (x4 pins) | Each pin rated for 5A; parallel routing minimizes input path impedance and improves thermal distribution. |
| GND / AGND | Power and analog ground | Separate AGND pin reduces noise coupling into feedback and I²C circuits; thermal pad must be connected to GND plane. |
| FSEL | Frequency select input | Resistor-to-GND/VIN sets switching frequency; determines inductor value and EMI profile. |
| VSEL | Startup voltage select input | Defines default output voltage at power-on (0.85V for TPS62875B2QWRZVRQ1); configurable via resistor or I²C. |
| SCL / SDA | I²C serial interface | Supports up to 3.4MHz communication; pull-up resistors required; enables dynamic voltage/frequency adjustment. |
| MODE/SYNC | Operating mode control | Pull-low = power-save mode; pull-high = forced-PWM; also accepts external sync clock for phase alignment in stacked configs. |
| PG | Open-drain power-good output | Signals valid output voltage with window comparator (±4% UV/OV thresholds); daisy-chainable in stacked operation. |
Key Features
| Feature | Design Value |
|---|---|
| Differential remote sensing (VOSNS/GOSNS) | Compensates for PCB trace resistance up to ±12mV, ensuring ±0.8% regulation accuracy at the load instead of at the IC output pin. |
| I²C programmability (3.4MHz) | Enables real-time output voltage adjustment, telemetry readback (voltage/temp), and fault status reporting without external MCU GPIO overhead. |
| Stacked operation support | SYNC_OUT/MODE-SYNC daisy-chain allows up to 3 devices for >20A output or thermal spreading-no external clock generator required. |
| Thermal warning & shutdown | 150°C thermal warning flag and 170°C shutdown with 20°C hysteresis provide fail-safe thermal management for automotive safety-critical systems. |
| Droop compensation | Configurable current-proportional voltage offset (±3.5mV accuracy) maintains stable output under dynamic load steps without increasing output capacitance. |
| Spread spectrum clocking | Reduces peak EMI by ±10% frequency modulation at fSSC = fSW/2048 - aids compliance with CISPR 25 Class 5 radiated emissions limits. |
Applications
| ADAS Camera Power Supply | Surround View ECU |
|---|---|
|
Use Scenario: Powers 8MP+ image sensor and ISP in front/rear camera modules exposed to engine bay temperatures. IC Role / Device Role / Timing Role: Primary 20A buck regulator delivering 0.85V core voltage with <10µs transient response to sensor exposure changes. Use Value: Differential remote sense maintains ±0.8% accuracy at sensor die despite 50mΩ PCB trace resistance; thermal warning enables graceful ISP throttling before shutdown. |
Use Scenario: Supplies multi-core vision processor in 360° surround view system with simultaneous video stitching and AI inference. IC Role / Device Role / Timing Role: High-current, I²C-configurable power rail supporting dynamic voltage scaling during varying compute loads. Use Value: 3.4MHz I²C interface allows sub-100µs voltage updates between processing phases; stacked mode supports >20A peak current for burst-mode AI acceleration. |
| Hybrid Reconfigurable Cluster | Telematics Control Unit |
|
Use Scenario: Powers reprogrammable graphics controller and display driver in digital instrument clusters with variable brightness and resolution. IC Role / Device Role / Timing Role: Fast-transient buck converter with programmable soft-start and droop compensation for smooth boot-up and dimming transitions. Use Value: Adjustable soft-start (1ms default) prevents inrush-induced brownout; droop compensation eliminates need for large ceramic output caps in space-constrained dash layouts. |
Use Scenario: Supplies LTE/V2X modem, GNSS receiver, and microcontroller in vehicle connectivity gateway operating across wide ambient temperatures. IC Role / Device Role / Timing Role: Automotive-grade DC/DC with functional safety documentation and thermal pre-warning for ASIL-B subsystems. Use Value: AEC-Q100 Grade-1 qualification and documented functional safety evidence streamline ISO 26262 FMEDA integration; PG window comparator ensures clean reset sequencing. |
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 |
|---|---|---|---|
| TPS62875B1QWRZVRQ1 | Same 20A rating and RZV package; differs in startup voltage (0.8V vs 0.85V) and transient non-sync mode enabled. | Optimized for systems requiring faster initial load-step response without external synchronization. | Select when prioritizing immediate transient readiness over I²C-controlled startup voltage flexibility. |
| TPS62876B3QWRZVRQ1 | 25A version with identical pinout; higher current limit (29–39A ILIM), tighter VSEL voltage options (0.75–0.9V), and spread-spectrum enabled by default. | Suitable for future-proofing or higher-power derivatives where board space is constrained but current demand may increase. | Choose when designing scalable platforms needing >20A headroom or enhanced EMI suppression without layout change. |
Compared with TPS62875B2QWRZVRQ1, the B1 variant offers faster transient readiness at fixed 0.8V startup, while the B3 25A variant provides higher current headroom and built-in spread spectrum-both retain identical footprint, thermal design, and I²C register compatibility for seamless migration.
Availability
TPS62875B2QWRZVRQ1 is available at Aetrix Electronics and suitable for ADAS camera modules, surround view ECUs, and hybrid digital clusters requiring stable component supply with AEC-Q100 compliance and functional safety documentation support.
Supply support for TPS62875B2QWRZVRQ1 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 electronics with decades of automotive qualification expertise.
The TPS6287x-Q1 product line was engineered specifically for high-reliability automotive power delivery in ADAS, infotainment, and domain controller applications-emphasizing fast transient response, thermal resilience, and functional safety readiness.
FAQ
What is the default startup output voltage of the TPS62875B2QWRZVRQ1?
The TPS62875B2QWRZVRQ1 has a default startup output voltage of 0.85V when the VSEL pin is connected to a 6.2kΩ resistor to GND. This value is factory-trimmed and confirmed in the Device Options table; alternative VSEL configurations yield 0.75V, 0.875V, or 0.8V depending on resistor network or direct tie-off.
Does the TPS62875B2QWRZVRQ1 support stacking with other TPS6287x-Q1 devices?
Yes, the TPS62875B2QWRZVRQ1 supports daisy-chained stacking via SYNC_OUT and MODE/SYNC pins to increase total output current or distribute thermal load. Up to three devices can be synchronized in-phase or with 120° phase shift; all stacked units share one COMP network and require coordinated EN assertion.
What is the maximum I²C clock frequency supported by the TPS62875B2QWRZVRQ1?
The TPS62875B2QWRZVRQ1 supports I²C high-speed mode up to 3.4MHz for write operations with ≤100pF bus capacitance. This enables rapid voltage updates and telemetry reads-critical for dynamic power management in telematics and ADAS systems where latency must be minimized.
How does the differential remote sensing work on the TPS62875B2QWRZVRQ1?
The TPS62875B2QWRZVRQ1 uses dedicated VOSNS (positive) and GOSNS (negative) pins to measure voltage directly at the load terminals. This compensates for IR drop across PCB traces, maintaining ±0.8% regulation accuracy at the point-of-load-even with up to 50mΩ interconnect resistance-without requiring additional compensation components.
Is the TPS62875B2QWRZVRQ1 qualified for automotive safety-critical systems?
Yes, the TPS62875B2QWRZVRQ1 is AEC-Q100 Grade-1 qualified (–40°C to +125°C ambient, –40°C to +150°C junction) and designated as functional safety-capable. Texas Instruments provides documentation-including FIT rate data, failure mode analysis, and safety manual-to support ISO 26262 ASIL-B system integration.
TPS62875B2QWRZVRQ1 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:
- 20A
- 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)
TPS62875B2QWRZVRQ1 FAQ
1.How can I place an order for TPS62875B2QWRZVRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62875B2QWRZVRQ1 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 TPS62875B2QWRZVRQ1 reliable?
The price and inventory of TPS62875B2QWRZVRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62875B2QWRZVRQ1 is usually 5 days.
3.What payment methods are accepted for TPS62875B2QWRZVRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62875B2QWRZVRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62875B2QWRZVRQ1?
TPS62875B2QWRZVRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62875B2QWRZVRQ1 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 TPS62875B2QWRZVRQ1?
For technical support, including TPS62875B2QWRZVRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62875B2QWRZVRQ1 requirements.
6.How does Aetrix verify that TPS62875B2QWRZVRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS62875B2QWRZVRQ1 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 TPS62875B2QWRZVRQ1 meets industry standards.
7.What is the process for return or replacement of TPS62875B2QWRZVRQ1?
All TPS62875B2QWRZVRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62875B2QWRZVRQ1, 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 TPS62875B2QWRZVRQ1 part is unused and in its original packaging.
Return procedure for TPS62875B2QWRZVRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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