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Texas Instruments TPS6285011HQDRLRQ1
- Part No.:
- TPS6285011HQDRLRQ1
- Manufacturer:
- Texas Instruments
- Package:
- SOT-583
- Datasheet:
-
TPS6285011HQDRLRQ1.pdf
- Description:
- IC REG BUCK 3.3V 1A SOT583
- Quantity:
- Payment:
- Shipping:
Inventory:1,277
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Product details
Overview
TPS6285011HQDRLRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive synchronous step-down DC/DC converter delivering 1A continuous output current, operating from 2.7V to 6V input, with fixed 3.3V output voltage, ±1% accuracy in PWM mode, and 17µA quiescent current - deployed in ADAS camera modules and surround-view ECUs for low-noise, high-reliability power delivery.
For engineers reviewing the TPS6285011HQDRLRQ1 datasheet, TPS6285011HQDRLRQ1 pinout, TPS6285011HQDRLRQ1 application, or TPS6285011HQDRLRQ1 equivalent, key selection criteria include its SOT583 package footprint, 1.8–4MHz adjustable switching frequency, active output discharge, power-good window comparator, and functional safety documentation support for ISO 26262-compliant systems.
Technical Context
The TPS6285011HQDRLRQ1 implements peak current mode control with internal compensation selectable via COMP/FSET pin configuration, enabling stable operation with 8–200µF ceramic output capacitors. Its MODE/SYNC pin supports forced PWM, PFM/PWM auto-mode transition, and external clock synchronization from 1.8MHz to 4MHz with <50µs lock time.
It integrates low-RDS(on) MOSFETs (65mΩ high-side, 33mΩ low-side at VIN ≥ 5V), 100% duty cycle capability, and precise EN threshold (1.05–1.15V rising) for programmable UVLO and sequencing - all qualified across –40°C to +125°C ambient temperature with junction rating up to +150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 6V - supports wide automotive battery rail including cold-crank transients down to 2.7V. |
| Output Voltage | Fixed 3.3V - eliminates external feedback resistors; ±1% accuracy ensures tight regulation for MCU I/O and sensor interfaces. |
| Continuous Output Current | 1A - sufficient for powering image signal processors, SerDes links, and low-power microcontrollers in ADAS domains. |
| Quiescent Current | 17µA typical - enables ultra-low standby power in always-on camera ECU applications. |
| Switching Frequency | 1.8MHz to 4MHz adjustable - allows EMI optimization and compact filter design using 0.47µH inductors. |
| Package | SOT583 (DRL) - 2.10mm × 1.60mm footprint with 8 pins, optimized for thermal performance (RθJA = 110°C/W on JEDEC 4-layer board). |
| Power-Good Output | Open-drain PG with 92–98% rising / 87–93% falling VFB window - provides reliable system-level power sequencing and fault detection. |
Pinout & Package
SOT583 (DRL) package: 2.10mm × 1.60mm body size including pins, thermally enhanced with exposed pad (not electrically connected per datasheet), 0.47mm pitch, 8-pin surface-mount configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input power supply | Accepts 2.7–6V; requires local 2×10µF ceramic input capacitance placed adjacent to pin for low-impedance path and EMI suppression. |
| SW | Switch node | Connects to internal high- and low-side MOSFETs; drives external inductor; critical for layout to minimize loop area and radiated emissions. |
| GND | Power ground | Primary return path for input/output currents; must be tied directly to exposed thermal pad for optimal thermal performance. |
| EN | Enable control | Logic-compatible input with 1.05–1.15V rising threshold; enables precise undervoltage lockout and power-up sequencing via resistor divider. |
| PG | Power-good indicator | Open-drain output requiring external pullup; asserts low during startup, UVLO, thermal shutdown, or VOUT out-of-regulation. |
| FB | Feedback reference | Not used for fixed-output variant - internally connected to 3.3V regulation circuitry; pin remains functional but unconnected externally. |
| COMP/FSET | Compensation & frequency set | Resistor-to-GND sets switching frequency (1.8–4MHz) and control-loop compensation; tied to GND for 2.25MHz default. |
| MODE/SYNC | Operating mode control | Pulled low for PFM/PWM auto-mode; pulled high for forced PWM; accepts external 1.8–4MHz sync clock with falling-edge alignment to SW. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation - meets automotive reliability and stress-test requirements for front-end camera modules. |
| Active output discharge | 100Ω internal discharge path - ensures rapid VOUT ramp-down during disable, preventing back-powering of downstream logic. |
| Functional safety documentation | FIT rate, failure modes, and diagnostic coverage data provided - supports ASIL-B system-level FMEDA and safety case development. |
| Low-EMI pseudo-random spread spectrum | Optional SSC reduces peak conducted/radiated emissions by spreading energy across ~288kHz bandwidth - aids CISPR 25 Class 5 compliance without added filtering. |
| 100% duty cycle operation | Enables dropout-free regulation down to VIN = VOUT - critical for maintaining 3.3V rail during automotive cold-crank events where battery dips to 3.2V. |
Applications
| ADAS Camera Module | Surround-View ECU |
|---|---|
Use Scenario: Powering CMOS image sensors and ISP SoCs in forward-facing driver monitoring or lane-departure cameras. IC Role / Device Role / Timing Role: Primary 3.3V point-of-load regulator supplying sensor analog front-end and digital core logic. Use Value: 17µA quiescent current extends battery life in parked-camera recording; ±1% output accuracy prevents sensor ADC reference drift. | Use Scenario: Supplying multiple camera interface ICs and video processors in 4-channel surround-view systems. IC Role / Device Role / Timing Role: Fixed-output buck converter delivering clean, sequenced 3.3V rails to MIPI CSI-2 receivers and FPGA I/O banks. Use Value: Power-good window comparator enables synchronized startup across four camera channels; SOT583 footprint saves PCB area in space-constrained rearview mirror housings. |
| Hybrid Instrument Cluster | Telematics Control Unit |
Use Scenario: Providing regulated 3.3V to TFT display controllers and touch-screen interface ICs in reconfigurable digital dashboards. IC Role / Device Role / Timing Role: Secondary power rail generator supporting dynamic brightness scaling and real-time UI rendering. Use Value: 100% duty cycle mode maintains display backlight stability during engine start; AEC-Q100 qualification ensures long-term reliability under dashboard thermal cycling. | Use Scenario: Powering LTE/Wi-Fi modems, GNSS receivers, and secure boot MCUs in vehicle connectivity gateways. IC Role / Device Role / Timing Role: High-efficiency 3.3V supply for communication subsystems requiring low noise and fast load transient response. Use Value: Peak current mode control delivers <10µs transient recovery for burst-data modem transmissions; spread spectrum reduces RF interference with cellular antennas. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS6285010MQDRLRQ1 | Fixed 1.8V output; identical package, pinout, and electrical specs otherwise. | Targets 1.8V FPGA I/O or LPDDR memory rails instead of 3.3V sensor interfaces. | Select when system requires 1.8V logic supply with same thermal and EMI profile. |
| TPS6285021HQDRLRQ1 | 2A continuous output current; same 3.3V fixed output, SOT583 package, and feature set. | Supports higher-current loads such as multi-core application processors or dual-camera ISPs. | Choose for future-proofing or when peak load exceeds 1A; shares layout compatibility but requires higher-current inductor/capacitor selection. |
Compared with TPS6285011HQDRLRQ1, TPS6285010MQDRLRQ1 offers identical form-factor and reliability but targets different voltage domains, while TPS6285021HQDRLRQ1 scales output current to 2A without changing footprint or control architecture - enabling direct upgrade paths in existing designs.
Availability
TPS6285011HQDRLRQ1 is available at Aetrix Electronics and suitable for ADAS camera modules, surround-view ECUs, and hybrid instrument clusters requiring stable component supply, automotive-grade traceability, and long-term production continuity.
Supply support for TPS6285011HQDRLRQ1 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 is designed specifically for automotive infotainment and ADAS applications, emphasizing low EMI, high efficiency across light-to-heavy loads, and AEC-Q100/ISO 26262-aligned reliability.
FAQ
What is the output voltage of the TPS6285011HQDRLRQ1 and is it adjustable?
The TPS6285011HQDRLRQ1 provides a fixed 3.3V output voltage. It is not adjustable - the FB pin is internally connected to the 3.3V regulation circuitry, eliminating the need for external feedback resistors. This simplifies design, improves accuracy (±1% in PWM mode), and enhances reliability in automotive camera and sensor applications where consistent 3.3V rail stability is critical.
Does the TPS6285011HQDRLRQ1 support power sequencing with other devices?
Yes, the TPS6285011HQDRLRQ1 supports precise power sequencing via its ENABLE pin, which features a tightly controlled 1.05–1.15V rising threshold and 0.96–1.05V falling threshold. By adding an external RC network to EN, designers can implement user-defined delay and undervoltage lockout, enabling coordinated startup/shutdown with companion processors, FPGAs, or other PMICs in complex ADAS ECUs.
What thermal performance can be expected from the TPS6285011HQDRLRQ1 in a standard 4-layer PCB?
In a JEDEC-standard 4-layer PCB layout, the TPS6285011HQDRLRQ1 exhibits a junction-to-ambient thermal resistance (RθJA) of 110°C/W. With 1A load and 5V input, typical power dissipation is ~120mW, resulting in ~13°C junction rise above ambient - well within its –40°C to +150°C junction rating. Layout best practices (thermal vias under exposed pad, copper pour on inner layers) further reduce thermal impedance.
Can the TPS6285011HQDRLRQ1 be synchronized to an external clock, and what are the timing requirements?
Yes, the TPS6285011HQDRLRQ1 supports external synchronization via the MODE/SYNC pin, accepting clocks from 1.8MHz to 4MHz with 20–80% duty cycle. Synchronization locks within 50µs, and the device aligns the falling edge of the external clock to the rising edge of the SW signal - enabling phase-shifted operation for multi-rail systems. No additional passive components are required for sync functionality.
Is spread spectrum clocking enabled by default on the TPS6285011HQDRLRQ1, and how is it configured?
No, spread spectrum clocking (SSC) is disabled by default on the TPS6285011HQDRLRQ1. It is activated only when COMP/FSET is configured for compensation setting 2 (e.g., tied to VIN or using 15–33kΩ or 45–100kΩ resistor to GND). When enabled, SSC dithers the switching frequency up to +288kHz around the nominal value to reduce peak EMI - beneficial for meeting CISPR 25 Class 5 limits in camera module designs.
TPS6285011HQDRLRQ1 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:
- 1A
- 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
TPS6285011HQDRLRQ1 FAQ
1.How can I place an order for TPS6285011HQDRLRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS6285011HQDRLRQ1 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 TPS6285011HQDRLRQ1 reliable?
The price and inventory of TPS6285011HQDRLRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS6285011HQDRLRQ1 is usually 5 days.
3.What payment methods are accepted for TPS6285011HQDRLRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS6285011HQDRLRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS6285011HQDRLRQ1?
TPS6285011HQDRLRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS6285011HQDRLRQ1 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 TPS6285011HQDRLRQ1?
For technical support, including TPS6285011HQDRLRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS6285011HQDRLRQ1 requirements.
6.How does Aetrix verify that TPS6285011HQDRLRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS6285011HQDRLRQ1 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 TPS6285011HQDRLRQ1 meets industry standards.
7.What is the process for return or replacement of TPS6285011HQDRLRQ1?
All TPS6285011HQDRLRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS6285011HQDRLRQ1, 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 TPS6285011HQDRLRQ1 part is unused and in its original packaging.
Return procedure for TPS6285011HQDRLRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS6285011HQDRLRQ1 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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