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Texas Instruments TPS62850240QDRLRQ1
- Part No.:
- TPS62850240QDRLRQ1
- Manufacturer:
- Texas Instruments
- Package:
- SOT-583
- Datasheet:
-
TPS62850240QDRLRQ1.pdf
- Description:
- IC REG BUCK ADJ 2A SOT583
- Quantity:
- Payment:
- Shipping:
Inventory:2,483
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Product details
Overview
TPS62850240QDRLRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive synchronous step-down DC/DC converter delivering up to 2A continuous output current, operating from 2.7V–6V input, with adjustable 0.6V–5.5V output voltage, ±1% PWM output accuracy, and 17µA quiescent current-designed for ADAS camera power rails requiring low EMI and precise sequencing.
For engineers reviewing the TPS62850240QDRLRQ1 datasheet, TPS62850240QDRLRQ1 pinout, TPS62850240QDRLRQ1 application, or TPS62850240QDRLRQ1 equivalent, key selection criteria include its SOT583 package footprint, 1.8MHz–4MHz externally adjustable switching frequency, active output discharge, foldback overcurrent protection, and functional safety documentation support for ISO 26262-compliant systems.
Technical Context
The TPS62850240QDRLRQ1 implements peak current mode control with internal compensation selectable via COMP/FSET pin configuration-supporting two compensation settings optimized for either minimal (≥10µF) or high-transient (≥18µF) output capacitance. It operates in forced PWM or automatic PWM/PFM mode, with MODE/SYNC enabling external synchronization or PFM entry at light load.
Its integrated power-good window comparator monitors VOUT within ±5% of target (92–98% rising, 87–93% falling), while thermal shutdown activates at 170°C with 15°C hysteresis. The device supports 100% duty cycle operation and features precise enable logic with 1.1V rising threshold and 100mV hysteresis for user-defined UVLO and sequencing control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 6V - supports wide automotive battery range including cold-crank (≥2.7V) and load-dump transients (≤6V). |
| Output Current | 2A continuous - rated for sustained 2A at TJ ≤ 125°C per AEC-Q100 Grade 1 specification. |
| Output Voltage Accuracy | ±1% in PWM mode - ensures stable core or interface rail regulation without post-regulation trimming. |
| Quiescent Current | 17µA typical - enables ultra-low-power sleep modes in always-on ADAS subsystems. |
| Switching Frequency | 1.8MHz to 4MHz - adjustable via resistor on COMP/FSET or synchronized externally; avoids AM radio band. |
| Package | SOT583 (DRL) - 2.10mm × 1.60mm footprint with 8 pins, optimized for space-constrained automotive PCBs. |
| Thermal Shutdown | 170°C activation with 15°C hysteresis - protects against sustained overload or poor heatsinking in enclosed ECUs. |
Pinout & Package
SOT583 (DRL) package: 8-pin, 2.10mm × 1.60mm body size (including pins), thermally enhanced bottom-side pad for improved PCB heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Accepts 2.7V–6V supply; requires local 2×10µF ceramic input capacitance placed adjacent to pin. |
| SW | Switch node | Connects to internal high- and low-side MOSFETs; drives external 0.47µH inductor; sensitive to layout parasitics. |
| GND | Ground reference | Primary return path for power and signal currents; must be connected to low-impedance PCB ground plane. |
| EN | Enable control | Logic-level input with 1.1V rising threshold; supports RC-based power-up delay and programmable UVLO. |
| PG | Power-good indicator | Open-drain output with window comparator; asserts low during soft-start, UVLO, thermal shutdown, or VOUT out-of-regulation. |
| FB | Feedback input | Resistive divider sets output voltage; 0.6V reference enables 0.6V–5.5V adjustment; 1–70nA leakage minimizes divider error. |
| COMP/FSET | Compensation & frequency set | Resistor-to-GND selects switching frequency (1.8–4MHz) and internal compensation setting for stability with chosen COUT. |
| MODE/SYNC | Operation mode control | Pull low for PWM/PFM auto-mode; pull high for forced PWM; accept 1.8–4MHz external clock for synchronization. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation - meets automotive infotainment and ADAS environmental requirements. |
| Active output discharge | 100Ω internal discharge path - ensures rapid VOUT ramp-down during disable, preventing back-powering of downstream circuitry. |
| Foldback overcurrent protection | Configurable via J-column data - reduces peak current under short-circuit to limit power dissipation and thermal stress. |
| Pseudo-random spread spectrum | Reduces peak EMI by up to 10dB - optional via COMP/FSET configuration; disabled during soft-start and external sync. |
| 100% duty cycle capability | Maintains regulation down to VIN ≈ VOUT - critical for low-dropout operation during battery brownout conditions. |
Applications
| ADAS Camera Power Supply | Surround View ECU Core Rail |
|---|---|
|
Use Scenario: Powers image sensor and ISP in front/rear/side cameras with strict EMI limits and fast transient response. IC Role / Device Role / Timing Role: Primary 1.2V or 1.8V core regulator delivering 2A peak during exposure bursts. Use Value: 17µA IQ extends system sleep time; ±1% accuracy maintains sensor ADC reference stability; spread spectrum meets CISPR-25 Class 5. |
Use Scenario: Supplies SoC core voltage in multi-camera fusion ECUs where thermal density and board space are constrained. IC Role / Device Role / Timing Role: High-efficiency buck converter operating at 2.25MHz to minimize inductor size and avoid AM band interference. Use Value: SOT583 package enables dense layout; 100% duty cycle sustains operation during 3.0V battery dips; PG signal enables safe SoC reset sequencing. |
| Hybrid Instrument Cluster | Telematics Control Unit |
|
Use Scenario: Generates 3.3V rail for display controller and microcontroller in digital clusters with variable backlight loads. IC Role / Device Role / Timing Role: Adjustable-output buck supplying 2A continuous to mixed-signal cluster MCU and graphics engine. Use Value: Precise EN threshold allows coordinated startup with CAN transceiver; active discharge prevents ghost display artifacts during ignition-off. |
Use Scenario: Provides 1.1V or 1.2V core voltage for LTE/C-V2X modems and application processors in telematics gateways. IC Role / Device Role / Timing Role: Automotive-grade step-down regulator supporting functional safety diagnostics via PG and thermal reporting. Use Value: Functional safety documentation aids ASIL-B decomposition; foldback OCP protects against modem RF burst current surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS6285020MQDRLRQ1 | Fixed 1.8V output; no FB pin; identical SOT583 package and 2A rating. | Eliminates external feedback resistors but lacks output adjustability for multi-rail designs. | Select when 1.8V is fixed system requirement and board space savings outweigh flexibility needs. |
| TPS62850220QDRLRQ1 | No active output discharge; otherwise matches 2A rating, package, and electrical specs. | Higher risk of back-powering in hot-swap or multi-rail systems where controlled discharge is required. | Choose only if discharge function is unused and cost reduction is prioritized over safety-critical discharge behavior. |
Compared with TPS62850240QDRLRQ1, TPS6285020MQDRLRQ1 trades adjustability for simplicity and reduced BOM count, while TPS62850220QDRLRQ1 removes active discharge to lower cost-neither offers pin-compatible replacement without verifying discharge and feedback requirements in the target design.
Availability
TPS62850240QDRLRQ1 is available at Aetrix Electronics and suitable for ADAS camera modules, surround-view ECUs, hybrid instrument clusters, telematics control units, and external amplifier power supplies requiring stable component supply across automotive production lifecycles.
Supply support for TPS62850240QDRLRQ1 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 TPS62850x-Q1 product line delivers high-efficiency, low-EMI, AEC-Q100-qualified buck converters specifically engineered for demanding automotive infotainment and ADAS applications where reliability, thermal robustness, and EMI compliance are critical.
FAQ
What is the maximum continuous output current of the TPS62850240QDRLRQ1?
The TPS62850240QDRLRQ1 delivers up to 2A continuous output current at junction temperatures ≤125°C, as specified under AEC-Q100 Grade 1 conditions. At 85°C junction temperature, it supports up to 3A peak current. The actual achievable current depends on PCB thermal design, input voltage, and output voltage-refer to the thermal derating curves in the datasheet for precise limits.
Does the TPS62850240QDRLRQ1 support adjustable output voltage?
Yes, the TPS62850240QDRLRQ1 supports adjustable output voltage from 0.6V to 5.5V using an external resistor divider connected to the FB pin. Its internal 0.6V reference enables precise regulation across this range, with ±1% accuracy in PWM mode-making it suitable for dynamically configured core or I/O rails in automotive SoCs.
How does the MODE/SYNC pin function on the TPS62850240QDRLRQ1?
The MODE/SYNC pin on the TPS62850240QDRLRQ1 serves three roles: pulled low for automatic PWM/PFM mode, pulled high for forced PWM operation, or driven with a 1.8MHz–4MHz external clock for synchronization. Internal PLL allows seamless transition between internal and external clocks without output disruption-critical for multi-converter noise reduction in clustered ECUs.
Is the TPS62850240QDRLRQ1 qualified for automotive use?
Yes, the TPS62850240QDRLRQ1 is AEC-Q100 qualified for automotive applications (Grade 1: –40°C to +125°C TA) and designed for functional safety systems. TI provides functional safety documentation-including FMEDA reports and safety manuals-to support ISO 26262 ASIL-B decomposition in safety-critical ADAS and infotainment systems.
What package type does the TPS62850240QDRLRQ1 use?
The TPS62850240QDRLRQ1 uses the SOT583 (DRL) package: an 8-pin, 2.10mm × 1.60mm surface-mount package with exposed thermal pad. This compact, thermally enhanced footprint supports high-density automotive PCB layouts while enabling efficient heat transfer to the board-verified with RθJA = 110°C/W on JEDEC 4-layer test board.
TPS62850240QDRLRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-583
- 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):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 2A
- Frequency - Switching:
- 1.8MHz ~ 4MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-583
TPS62850240QDRLRQ1 FAQ
1.How can I place an order for TPS62850240QDRLRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62850240QDRLRQ1 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 TPS62850240QDRLRQ1 reliable?
The price and inventory of TPS62850240QDRLRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62850240QDRLRQ1 is usually 5 days.
3.What payment methods are accepted for TPS62850240QDRLRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62850240QDRLRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62850240QDRLRQ1?
TPS62850240QDRLRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62850240QDRLRQ1 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 TPS62850240QDRLRQ1?
For technical support, including TPS62850240QDRLRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62850240QDRLRQ1 requirements.
6.How does Aetrix verify that TPS62850240QDRLRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS62850240QDRLRQ1 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 TPS62850240QDRLRQ1 meets industry standards.
7.What is the process for return or replacement of TPS62850240QDRLRQ1?
All TPS62850240QDRLRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62850240QDRLRQ1, 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 TPS62850240QDRLRQ1 part is unused and in its original packaging.
Return procedure for TPS62850240QDRLRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS62850240QDRLRQ1 Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
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