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Texas Instruments TPS6285020MQDRLRQ1
- Part No.:
- TPS6285020MQDRLRQ1
- Manufacturer:
- Texas Instruments
- Package:
- SOT-583
- Datasheet:
-
TPS6285020MQDRLRQ1.pdf
- Description:
- IC REG BUCK 1.8V 2A SOT583
- Quantity:
- Payment:
- Shipping:
Inventory:6,989
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Product details
Overview
TPS6285020MQDRLRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive synchronous step-down DC/DC converter delivering 2A continuous output current, operating from 2.7V–6V input, with fixed 1.8V output, ±1% feedback voltage accuracy in PWM mode, and 17µA quiescent current - used in ADAS camera power rails and infotainment domain controllers.
For engineers reviewing the TPS6285020MQDRLRQ1 datasheet, TPS6285020MQDRLRQ1 pinout, TPS6285020MQDRLRQ1 application, or TPS6285020MQDRLRQ1 equivalent, key selection considerations include its SOT583 package footprint, 1.8MHz–4MHz adjustable switching frequency, forced-PWM/PFM mode control, active output discharge, and integrated power-good output with window comparator.
Technical Context
The TPS6285020MQDRLRQ1 implements peak current mode control with internal compensation selectable via COMP/FSET pin configuration, supporting stable regulation across 8–200µF output capacitance ranges depending on VOUT and compensation setting. Its MODE/SYNC pin enables seamless transition between PFM (light-load efficiency), forced PWM (EMI control), and external clock synchronization (1.8–4MHz).
It integrates low-RDS(on) MOSFETs (65mΩ high-side, 33mΩ low-side at VIN ≥5V), supports 100% duty cycle operation for low-dropout scenarios, and features precise EN threshold (1.1V rising, 1.0V falling) for programmable UVLO and sequencing - all qualified for –40°C to +125°C ambient operation with TJ up to +150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output current | 2A continuous (at TA ≤ +125°C); supports 3A peak for transient loads |
| Input voltage range | 2.7V–6V - compatible with automotive 3.3V/5V supply rails and battery-backed systems |
| Output voltage | Fixed 1.8V - eliminates external feedback resistors and reduces BOM count |
| Quiescent current | 17µA typical - enables always-on subsystems without excessive standby drain |
| Switching frequency | 1.8MHz–4MHz adjustable - allows EMI optimization and compact filter design |
| Feedback accuracy | ±1% in PWM mode - ensures tight regulation for sensitive SoC core supplies |
| Thermal shutdown | 170°C trip with 15°C hysteresis - protects against sustained overload or poor PCB thermal design |
Pinout & Package
SOT583 (DRL) package: 2.10mm × 1.60mm body size including pins, 0.47mm pitch, thermally enhanced bottom-side pad for improved heat dissipation in automotive PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Power input | Accepts 2.7V–6V; requires local 10µF ceramic input capacitor placed adjacent to minimize loop inductance |
| SW (Pin 7) | Power switch node | Connects to internal high-/low-side MOSFETs; drives external 0.32–1.2µH inductor |
| GND (Pin 8) | Ground reference | Primary return path for power and control circuits; must be connected to thermal pad for optimal RθJB |
| EN (Pin 2) | Enable control | Logic-compatible input with 1.1V rising threshold; enables precise UVLO and power sequencing |
| PG (Pin 6) | Power-good indicator | Open-drain output with window comparator; asserts high-Z only when VOUT is within ±5% of 1.8V |
| FB (Pin 5) | Feedback input | Internally tied to 1.8V reference; not accessible - fixed-output configuration eliminates resistor divider |
| COMP/FSET (Pin 4) | Compensation & frequency set | Resistor-to-GND sets switching frequency (1.8–4MHz) and selects one of two internal compensation networks |
| MODE/SYNC (Pin 3) | Operation mode control | Pull high for forced PWM; pull low for auto PFM/PWM; accept external 1.8–4MHz clock for synchronization |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation - meets automotive power rail reliability requirements |
| Active output discharge | 100Ω internal discharge path - ensures rapid VOUT ramp-down during shutdown, preventing back-powering |
| Pseudo-random spread spectrum | Reduces peak EMI by up to 10dB - simplifies compliance testing for ADAS and infotainment modules |
| 100% duty cycle capability | Enables dropout as low as 120mV at 2A - supports operation near battery brownout conditions |
| Integrated power-good with deglitch | 40µs deglitch time on PG - prevents false fault assertions during load transients or soft-start ramp |
Applications
| ADAS Camera Power Supply | Infotainment Domain Controller |
|---|---|
Use Scenario: Powers image sensor and ISP in front-facing ADAS cameras requiring clean, low-noise 1.8V supply under engine start-stop cycling. IC Role / Device Role / Timing Role: Primary buck regulator delivering regulated 1.8V at up to 2A with fast transient response to pixel readout bursts. Use Value: 17µA IQ extends battery backup runtime; ±1% accuracy maintains sensor ADC reference stability; PG signal validates rail readiness before frame capture. |
Use Scenario: Supplies 1.8V core voltage to application processors and memory interfaces in head units and telematics control units. IC Role / Device Role / Timing Role: High-efficiency point-of-load converter synchronized to system clock to reduce beat-frequency noise in audio paths. Use Value: 1.8–4MHz adjustability avoids AM band interference; forced PWM mode eliminates PFM noise during audio playback; SOT583 footprint saves space in dense CPU power delivery. |
| Surround-View ECU | Hybrid Instrument Cluster |
Use Scenario: Provides stable 1.8V rail to multi-camera fusion processors in vehicle surround-view systems exposed to wide temperature swings. IC Role / Device Role / Timing Role: Automotive-grade DC/DC converter with thermal shutdown and UVLO protection for harsh under-hood environments. Use Value: TJ = –40°C to +150°C rating ensures operation during summer parking; foldback OCP prevents latch-up during short-circuit events on camera harnesses. |
Use Scenario: Powers display controller and graphics accelerator in reconfigurable digital instrument clusters with dynamic UI scaling. IC Role / Device Role / Timing Role: Fixed-output buck converter enabling rapid power-up sequencing aligned with MCU boot timeline. Use Value: Precise EN threshold allows exact timing control relative to main 5V rail; 1ms internal soft-start prevents inrush current spikes on shared battery bus. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62903RTER | 3A continuous, 2.7V–6V input, 1.8V fixed output, but uses 2mm × 2mm WSON package and lacks AEC-Q100 qualification | Targeted at industrial/commercial portable devices - not validated for automotive temperature or reliability stress tests | Select only for non-automotive designs where footprint and cost outweigh qualification requirements |
| MPQ4436AGL-AEC1-Z | 2A continuous, 3.3V–36V input, 1.8V fixed output, AEC-Q100 Grade 1, but higher 25µA IQ and no spread spectrum | Designed for wider-input automotive systems (e.g., 12V battery-derived rails), not optimized for low-VIN 3.3V/5V domains | Prefer when input may exceed 6V or when board-level EMI filtering is already implemented |
Compared with TPS6285020MQDRLRQ1, TPS62903RTER offers higher current but no automotive qualification, while MPQ4436AGL-AEC1-Z supports wider input voltage at the expense of quiescent current and EMI mitigation - making TPS6285020MQDRLRQ1 optimal for compact, low-noise 1.8V rails in AEC-Q100-compliant ADAS and infotainment modules.
Availability
TPS6285020MQDRLRQ1 is available at Aetrix Electronics and suitable for ADAS camera modules, infotainment domain controllers, and surround-view ECUs requiring stable component supply with full automotive qualification and traceable sourcing.
Supply support for TPS6285020MQDRLRQ1 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 ICs, with decades of experience in power management innovation and functional safety development.
The TPS62850x-Q1 product line delivers high-efficiency, low-EMI, AEC-Q100-qualified buck converters specifically engineered for demanding automotive power rails in ADAS, infotainment, and digital cluster applications.
FAQ
What is the output voltage configuration of the TPS6285020MQDRLRQ1?
The TPS6285020MQDRLRQ1 features a fixed 1.8V output voltage. Unlike adjustable variants in the TPS62850x-Q1 family, it does not require external feedback resistors - the FB pin is internally connected to the 1.8V reference, reducing component count and layout complexity for dedicated 1.8V rail applications.
Does the TPS6285020MQDRLRQ1 support external clock synchronization?
Yes, the TPS6285020MQDRLRQ1 supports external clock synchronization via the MODE/SYNC pin. When an external 1.8MHz–4MHz clock signal is applied, the device locks to that frequency with ~180° phase shift capability - enabling multi-rail synchronization to suppress beat frequencies in systems with multiple TPS6285020MQDRLRQ1 regulators.
What thermal performance can be expected from the TPS6285020MQDRLRQ1 in a standard 4-layer JEDEC PCB?
On a standard 4-layer JEDEC PCB with no thermal vias, the TPS6285020MQDRLRQ1 exhibits a junction-to-ambient thermal resistance (RθJA) of 110°C/W. With proper thermal pad connection and minimal copper isolation, RθJB drops to 20°C/W - enabling reliable 2A continuous operation at +85°C ambient without derating.
How does the power-good (PG) output behave during startup and fault conditions?
The TPS6285020MQDRLRQ1 PG output remains low during enable assertion, soft-start ramp, undervoltage lockout, thermal shutdown, or out-of-regulation conditions. It transitions to high-impedance only after VOUT reaches and sustains 1.8V ±5% for >40µs - ensuring robust power sequencing validation before downstream logic initialization.
Is spread spectrum clocking enabled by default on the TPS6285020MQDRLRQ1?
No, spread spectrum clocking (SSC) is disabled by default on the TPS6285020MQDRLRQ1. SSC is activated only when COMP/FSET is configured for compensation setting 2 (e.g., tied to VIN or 15–100kΩ to GND). In fixed-frequency internal mode (COMP/FSET tied to GND or VIN), SSC is off unless explicitly enabled per Table 8-1 in the datasheet.
TPS6285020MQDRLRQ1 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:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- -
- 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
TPS6285020MQDRLRQ1 FAQ
1.How can I place an order for TPS6285020MQDRLRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS6285020MQDRLRQ1 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 TPS6285020MQDRLRQ1 reliable?
The price and inventory of TPS6285020MQDRLRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS6285020MQDRLRQ1 is usually 5 days.
3.What payment methods are accepted for TPS6285020MQDRLRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS6285020MQDRLRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS6285020MQDRLRQ1?
TPS6285020MQDRLRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS6285020MQDRLRQ1 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 TPS6285020MQDRLRQ1?
For technical support, including TPS6285020MQDRLRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS6285020MQDRLRQ1 requirements.
6.How does Aetrix verify that TPS6285020MQDRLRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS6285020MQDRLRQ1 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 TPS6285020MQDRLRQ1 meets industry standards.
7.What is the process for return or replacement of TPS6285020MQDRLRQ1?
All TPS6285020MQDRLRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS6285020MQDRLRQ1, 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 TPS6285020MQDRLRQ1 part is unused and in its original packaging.
Return procedure for TPS6285020MQDRLRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS6285020MQDRLRQ1 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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