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Texas Instruments TPS6285021HQDRLRQ1
- Part No.:
- TPS6285021HQDRLRQ1
- Manufacturer:
- Texas Instruments
- Package:
- SOT-583
- Datasheet:
-
TPS6285021HQDRLRQ1.pdf
- Description:
- IC REG BUCK 3.3V 2A SOT583
- Quantity:
- Payment:
- Shipping:
Inventory:7,420
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Product details
Overview
TPS6285021HQDRLRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive synchronous step-down DC/DC converter delivering 2A continuous output current at 3.3V fixed output, operating from 2.7V–6V input, with ±1% output voltage accuracy in PWM mode and 17µA quiescent current-designed for ADAS camera power rails requiring low EMI and precise sequencing.
For engineers reviewing the TPS6285021HQDRLRQ1 datasheet, TPS6285021HQDRLRQ1 pinout, TPS6285021HQDRLRQ1 application, or TPS6285021HQDRLRQ1 equivalent, key selection criteria include its SOT583 package footprint, forced-PWM/PFM operation mode control, 1.8MHz–4MHz adjustable switching frequency, active output discharge, and integrated power-good with window comparator.
Technical Context
The TPS6285021HQDRLRQ1 implements peak current mode control with internal compensation selectable via COMP/FSET pin configuration (two settings optimized for 8–30µF output capacitance), enabling stable regulation with ceramic capacitors without feedforward components. Its MODE/SYNC pin supports both PFM/PWM auto-transition and external clock synchronization from 1.8MHz to 4MHz with <50µs lock time.
It integrates precision enable logic (1.1V rising threshold, 100mV hysteresis) for user-defined UVLO and sequencing, plus thermal shutdown at 170°C with 15°C hysteresis. The device features 100% duty cycle capability, foldback overcurrent protection (disabled in this variant), and open-drain PG with deglitching (40µs).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 2A continuous (at TJ ≤ 125°C); supports 3A peak for transient loads |
| Input Voltage Range | 2.7V to 6V - compatible with automotive battery rail including cold-crank (≥2.7V) |
| Output Voltage | Fixed 3.3V - eliminates external feedback resistors; VFB = 0.6V reference |
| Quiescent Current | 17µA typical - enables always-on subsystems with minimal battery drain |
| Switching Frequency | 1.8MHz to 4MHz adjustable - allows EMI optimization and small external inductor (0.32–1.2µH) |
| Output Accuracy | ±1% in PWM mode - ensures tight regulation for sensitive ADAS sensor interfaces |
| Thermal Rating | Junction temp −40°C to +150°C - meets AEC-Q100 Grade 1 (−40°C to +125°C TA) |
Pinout & Package
SOT583 (DRL) package: 2.10mm × 1.60mm body size (including pins), 0.4mm pitch, 8-pin surface-mount with exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Power input | Accepts 2.7V–6V; requires local 2×10µF ceramic input capacitance |
| SW (Pin 7) | Switch node | Connects to external 0.47µH inductor; high dv/dt node requiring tight layout |
| GND (Pin 8) | Ground reference | Primary return path; must be connected to thermal pad for thermal performance |
| EN (Pin 2) | Enable control | Logic-compatible input (1.1V threshold); enables precise UVLO and power sequencing |
| PG (Pin 6) | Power-good indicator | Open-drain output with window comparator; requires external pull-up to monitor 3.3V regulation |
| FB (Pin 5) | Feedback input | Internally tied to 0.6V reference; not accessible - fixed 3.3V output configured internally |
| COMP/FSET (Pin 4) | Compensation & frequency set | Resistor-to-GND sets switching frequency (1.8–4MHz) and control-loop compensation |
| MODE/SYNC (Pin 3) | Operation mode control | Pull low for PFM/PWM auto-mode; pull high for forced PWM; accept external sync clock (1.8–4MHz) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40°C to +125°C ambient operation in automotive environments |
| Active output discharge | Internal 100Ω discharge path ensures rapid VOUT ramp-down during disable |
| Pseudo-random spread spectrum | Reduces peak EMI emissions when enabled via COMP/FSET configuration |
| 100% duty cycle mode | Supports dropout operation down to VIN ≈ VOUT, critical for low-input transients |
| Integrated power-good with window comparator | Detects ±5% output deviation (92–113% of nominal 3.3V) with 40µs deglitch |
Applications
| ADAS Camera Power Supply | Surround View ECU Core Rail |
|---|---|
Use Scenario: Powers image sensor and ISP in front/rear/side ADAS cameras under automotive temperature and vibration stress. IC Role / Device Role / Timing Role: Primary 3.3V buck regulator supplying sensor analog front-end and digital interface logic. Use Value: Low 17µA quiescent current extends battery life in parked-camera monitoring; ±1% accuracy ensures consistent ADC reference stability. | Use Scenario: Delivers clean, sequenced 3.3V to multi-camera fusion processors in 360° surround-view systems. IC Role / Device Role / Timing Role: Fixed-output step-down converter with precise EN and PG for controlled power-up/down sequencing across multiple SoCs. Use Value: Active discharge and 1ms soft-start prevent bus contention; spread spectrum reduces EMI coupling into adjacent video signal paths. |
| Hybrid Cluster Display Logic | Telematics Control Unit I/O Rail |
Use Scenario: Supplies 3.3V logic power to TFT display controllers and touch interface ICs in reconfigurable instrument clusters. IC Role / Device Role / Timing Role: High-efficiency buck converter supporting dynamic load steps during animation rendering and HUD overlay transitions. Use Value: 2A continuous rating handles burst loads from backlight drivers; 1.8–4MHz frequency range enables compact 0603 inductor placement near display module. | Use Scenario: Provides regulated 3.3V to CAN transceivers, cellular modem interfaces, and GPS receivers in telematics gateways. IC Role / Device Role / Timing Role: Automotive-grade DC/DC with functional safety documentation support for ASIL-B subsystems. Use Value: PG output validates rail integrity before enabling CAN communication; thermal shutdown protects against enclosure overheating in sealed enclosures. |
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; identical package, pinout, and electrical specs except VOUT | Targets SoC core logic instead of I/O/peripheral rails | Select when system requires 1.8V instead of 3.3V; no PCB change needed |
| LM61480QRNXTQ1 | 3.5A rated, 2.7–18V input, 1.5–10V adjustable output; larger WSON-10 package | Higher current and wider VIN for infotainment head units with variable battery conditions | Choose for higher output current margin or extended input range; requires layout revision |
Compared with TPS6285021HQDRLRQ1, TPS6285020MQDRLRQ1 offers identical form-factor and timing behavior but targets 1.8V domains, while LM61480QRNXTQ1 trades SOT583 compactness for broader voltage range and higher current-making it suitable for next-tier power nodes where space permits.
Availability
TPS6285021HQDRLRQ1 is available at Aetrix Electronics and suitable for ADAS camera modules, surround-view ECUs, and hybrid cluster displays requiring stable component supply across automotive production lifecycles.
Supply support for TPS6285021HQDRLRQ1 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 company specializing in analog and embedded processing technologies, with leadership in automotive power management ICs.
The TPS62850x-Q1 product line delivers high-efficiency, low-EMI, AEC-Q100-compliant buck converters optimized for ADAS sensors, infotainment, and digital cockpit subsystems demanding precision regulation and functional safety readiness.
FAQ
What is the output voltage of the TPS6285021HQDRLRQ1?
The TPS6285021HQDRLRQ1 provides a fixed 3.3V output voltage. It uses an internal 0.6V feedback reference with factory-trimmed resistor network, eliminating the need for external feedback dividers. Output voltage accuracy is ±1% in PWM operation across temperature and line/load conditions, meeting stringent requirements for automotive sensor and interface power rails.
Does the TPS6285021HQDRLRQ1 support external clock synchronization?
Yes, the TPS6285021HQDRLRQ1 supports external clock synchronization via the MODE/SYNC pin (Pin 3). When driven with a logic-level square wave between 1.8MHz and 4MHz, the device locks to the external clock within 50µs. This feature enables phase alignment across multiple converters to reduce system-level EMI peaks and simplifies timing-critical multi-rail designs.
What is the minimum output capacitance required for stable operation of the TPS6285021HQDRLRQ1 at 3.3V?
For the TPS6285021HQDRLRQ1 operating at 3.3V output, the minimum recommended output capacitance is 8µF when using the "smallest output capacitance" compensation setting (e.g., COMP/FSET tied to GND), and 15µF when using the "best transient response" setting (e.g., COMP/FSET tied to VIN or 15–100kΩ to GND). TI specifies two 10µF X7R ceramic capacitors (2×10µF) as the standard design point.
How does the enable pin (EN) function on the TPS6285021HQDRLRQ1?
The EN pin of the TPS6285021HQDRLRQ1 has a precise 1.1V rising threshold and 1.0V falling threshold (100mV hysteresis), enabling programmable undervoltage lockout and exact power sequencing. Pulling EN low disables the device, reducing quiescent current to 1.5µA typical. Leaving EN unconnected is prohibited; it must be actively driven or pulled up via resistor to ensure reliable startup and shutdown behavior in automotive environments.
Is the TPS6285021HQDRLRQ1 pin-compatible with other members of the TPS62850x-Q1 family?
Yes, the TPS6285021HQDRLRQ1 is fully pin-compatible with all TPS62850x-Q1 variants in the DRL (SOT583) package-including TPS628501QDRLRQ1 (1A), TPS628502QDRLRQ1 (2A adjustable), and TPS628503QDRLRQ1 (3A). Pin functions, package dimensions, thermal pad layout, and PCB footprint are identical; only output current rating and fixed VOUT differ between part numbers.
TPS6285021HQDRLRQ1 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):
- 3.3V
- 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
TPS6285021HQDRLRQ1 FAQ
1.How can I place an order for TPS6285021HQDRLRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS6285021HQDRLRQ1 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 TPS6285021HQDRLRQ1 reliable?
The price and inventory of TPS6285021HQDRLRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS6285021HQDRLRQ1 is usually 5 days.
3.What payment methods are accepted for TPS6285021HQDRLRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS6285021HQDRLRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS6285021HQDRLRQ1?
TPS6285021HQDRLRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS6285021HQDRLRQ1 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 TPS6285021HQDRLRQ1?
For technical support, including TPS6285021HQDRLRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS6285021HQDRLRQ1 requirements.
6.How does Aetrix verify that TPS6285021HQDRLRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS6285021HQDRLRQ1 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 TPS6285021HQDRLRQ1 meets industry standards.
7.What is the process for return or replacement of TPS6285021HQDRLRQ1?
All TPS6285021HQDRLRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS6285021HQDRLRQ1, 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 TPS6285021HQDRLRQ1 part is unused and in its original packaging.
Return procedure for TPS6285021HQDRLRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS6285021HQDRLRQ1 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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