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Texas Instruments TPS628501B0QDRLRQ1
- Part No.:
- TPS628501B0QDRLRQ1
- Manufacturer:
- Texas Instruments
- Package:
- SOT-583
- Datasheet:
-
TPS628501B0QDRLRQ1.pdf
- Description:
- IC REG BUCK ADJ 1A SOT583
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TPS628501B0QDRLRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive synchronous step-down DC/DC converter delivering 1A continuous output current in an SOT583 package. It operates from 2.7V to 6V input, provides adjustable output voltage (0.6V–5.5V), achieves ±1% output accuracy in PWM mode, and features 17µA quiescent current-enabling efficient power conversion for ADAS camera modules and infotainment head units.
For engineers reviewing the TPS628501B0QDRLRQ1 datasheet, TPS628501B0QDRLRQ1 pinout, TPS628501B0QDRLRQ1 application, or TPS628501B0QDRLRQ1 equivalent, key selection criteria include its 1.8MHz–4MHz adjustable switching frequency, active output discharge, 150µs soft-start time, and functional safety documentation support for ISO 26262-compliant automotive systems.
Technical Context
The TPS628501B0QDRLRQ1 implements peak current mode control with internal compensation selectable via COMP/FSET pin configuration. Its dual compensation settings accommodate output capacitance from 8µF to 200µF, enabling stable regulation across ceramic capacitor values typical in compact automotive PCB layouts.
It supports three operational modes: forced PWM (MODE/SYNC = high), auto PWM/PFM (MODE/SYNC = low), and external synchronization (1.8–4MHz clock applied to MODE/SYNC). The device integrates precise enable logic with user-defined UVLO, power-good window comparator (92–98% rising, 87–93% falling), and thermal shutdown at 170°C with 15°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 6V - supports direct connection to automotive 3.3V/5V rails and battery-supervised domains. |
| Output Current | 1A continuous - sufficient for powering image signal processors and microcontrollers in ADAS sensor nodes. |
| Quiescent Current | 17µA typical - enables ultra-low standby power in always-on automotive subsystems. |
| Output Voltage Accuracy | ±1% in PWM mode - ensures tight regulation for sensitive analog and mixed-signal loads. |
| Switching Frequency | 1.8MHz to 4MHz adjustable - allows EMI optimization and small external component selection (e.g., 0.47µH inductor). |
| Soft-Start Time | 150µs - fast ramp-up for time-critical power sequencing in camera ECUs. |
| Thermal Shutdown | 170°C junction threshold - protects against sustained overload in enclosed automotive enclosures. |
Pinout & Package
TPS628501B0QDRLRQ1 uses the 8-pin SOT583 (DRL) package, measuring 2.10mm × 1.60mm including pins, optimized for space-constrained automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Accepts 2.7–6V supply; requires local 10µF input capacitance for stability and EMI reduction. |
| SW | Switch node | Connects to internal high-side/low-side MOSFETs; drives external 0.47µH inductor. |
| GND | Ground reference | Primary return path for power and control circuits; must be low-impedance plane under IC. |
| EN | Enable input | Logic-controlled startup; 1.1V rising threshold enables precise UVLO and sequencing with resistor divider. |
| PG | Power-good output | Open-drain status flag indicating VOUT regulation within ±3% window; requires external pull-up. |
| FB | Feedback input | Senses output voltage via resistive divider; sets VOUT = 0.6V × (1 + R1/R2). |
| COMP/FSET | Compensation & frequency set | Configures control-loop compensation and switching frequency via resistor to GND (e.g., 10kΩ → 2.25MHz). |
| MODE/SYNC | Mode control / sync input | Selects PFM/PWM (low) or forced PWM (high); accepts 1.8–4MHz external clock for multi-rail synchronization. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation - meets automotive reliability and lifetime requirements. |
| Active output discharge | 100Ω internal discharge path - prevents floating output during shutdown, critical for downstream logic integrity. |
| Pseudo-random spread spectrum | Reduces peak EMI emissions by up to 10dB - simplifies compliance with CISPR 25 Class 5 in camera modules. |
| Functional safety documentation | Includes FIT rate, failure mode analysis, and diagnostic coverage data - accelerates ASIL-B system-level FMEDA. |
| 100% duty cycle operation | Maintains regulation down to VIN – VOUT ≤ 300mV - supports low-dropout scenarios like post-buck LDO replacement. |
Applications
| ADAS Camera Module | Infotainment Head Unit |
|---|---|
Use Scenario: Powering CMOS image sensor and ISP in rear-view or surround-view camera ECU. IC Role / Device Role / Timing Role: Primary 1.2V/1.8V/3.3V buck regulator with fast transient response and low noise. Use Value: 17µA IQ extends sleep-mode battery life; 150µs soft-start enables deterministic boot timing aligned with sensor initialization. | Use Scenario: Supplying SoC core, DDR memory, and audio codec in automotive head unit. IC Role / Device Role / Timing Role: High-efficiency point-of-load converter supporting dynamic voltage scaling. Use Value: ±1% output accuracy maintains SoC operating margins; spread spectrum reduces conducted EMI on shared PCB layers. |
| Telematics Control Unit | Hybrid Instrument Cluster |
Use Scenario: Regulating power for LTE/C-V2X modem and GNSS receiver in TCUs. IC Role / Device Role / Timing Role: Always-on 3.3V rail with precise enable sequencing and PG monitoring. Use Value: EN pin's 100mV hysteresis enables clean brown-out detection; PG window comparator validates rail health before modem wake-up. | Use Scenario: Delivering configurable 1.1V–5.5V supplies to reconfigurable display driver and MCU in digital cluster. IC Role / Device Role / Timing Role: Adjustable-output buck converter supporting multiple display brightness and resolution modes. Use Value: 1.8–4MHz frequency adjustability allows EMI tuning per display refresh rate; MODE/SYNC pin enables synchronized switching across multiple rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS6285011HQDRLRQ1 | Fixed 3.3V output; same 1A rating, SOT583 package, and 150µs soft-start. | Eliminates external feedback resistors but lacks output adjustability. | Select when 3.3V rail is fixed and board space is constrained. |
| TPS6285018AQDRLRQ1 | Fixed 1.2V output; identical thermal specs and AEC-Q100 Grade 1 rating. | Optimized for core voltage of automotive MCUs without need for external divider. | Choose for 1.2V SoC core rails where precision and low IQ are critical. |
Compared with TPS628501B0QDRLRQ1, the fixed-output variants reduce BOM count and layout complexity but sacrifice design flexibility. TPS628501B0QDRLRQ1 remains optimal when system-level voltage margining, dynamic scaling, or multi-rail coordination is required.
Availability
TPS628501B0QDRLRQ1 is available at Aetrix Electronics and suitable for ADAS camera modules, infotainment head units, and telematics control units requiring stable component supply across automotive production lifecycles.
Supply support for TPS628501B0QDRLRQ1 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-grade power management solutions.
The TPS62850x-Q1 product line delivers high-efficiency, low-EMI, AEC-Q100-compliant buck converters specifically engineered for advanced driver assistance systems and infotainment platforms demanding functional safety and long-term supply stability.
FAQ
What is the soft-start time of the TPS628501B0QDRLRQ1?
The TPS628501B0QDRLRQ1 features a factory-configured soft-start time of 150µs, significantly faster than the 1ms default used in most variants of the TPS62850x-Q1 family. This rapid ramp-up supports tight power sequencing requirements in ADAS camera modules where sensor initialization must align precisely with voltage stabilization. The 150µs value is fixed and not adjustable via external components.
Does the TPS628501B0QDRLRQ1 support spread spectrum clocking?
Yes, the TPS628501B0QDRLRQ1 supports pseudo-random spread spectrum clocking (SSC) when the COMP/FSET pin is configured for compensation setting 2 (e.g., tied to VIN or using 15–33kΩ resistor). SSC reduces peak EMI emissions by modulating the switching frequency up to 288kHz above nominal, aiding CISPR 25 Class 5 compliance. SSC is automatically disabled during soft start and when external synchronization is active on the MODE/SYNC pin.
What is the output voltage range supported by the TPS628501B0QDRLRQ1?
The TPS628501B0QDRLRQ1 supports an adjustable output voltage range from 0.6V to 5.5V, set via an external resistive divider connected to the FB pin. Its 0.6V feedback reference enables generation of standard logic rails (1.2V, 1.8V, 3.3V) and custom voltages required by automotive sensors and processors. Output accuracy is ±1% in PWM mode, ensuring reliable operation across temperature and load variations.
How does the MODE/SYNC pin function on the TPS628501B0QDRLRQ1?
The MODE/SYNC pin on the TPS628501B0QDRLRQ1 serves three functions: (1) logic input to force PWM mode (high) or enable auto PWM/PFM mode (low); (2) synchronization input accepting 1.8–4MHz external clock signals; and (3) interface for phase-shifted multi-converter operation. When used for synchronization, the device locks to the external clock within 50µs, and internal PLL maintains lock during brief clock interruptions.
Is the TPS628501B0QDRLRQ1 qualified for automotive applications?
Yes, the TPS628501B0QDRLRQ1 is AEC-Q100 qualified for automotive applications with Grade 1 temperature rating (–40°C to +125°C ambient). It includes functional safety documentation to support ISO 26262 ASIL-B system development, thermal shutdown at 170°C with 15°C hysteresis, and robust ESD protection (±2000V HBM). These features make it suitable for safety-critical domains including ADAS, infotainment, and body electronics.
TPS628501B0QDRLRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- TPS62850x-Q1
- 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:
- 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
TPS628501B0QDRLRQ1 FAQ
1.How can I place an order for TPS628501B0QDRLRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS628501B0QDRLRQ1 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 TPS628501B0QDRLRQ1 reliable?
The price and inventory of TPS628501B0QDRLRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS628501B0QDRLRQ1 is usually 5 days.
3.What payment methods are accepted for TPS628501B0QDRLRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS628501B0QDRLRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS628501B0QDRLRQ1?
TPS628501B0QDRLRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS628501B0QDRLRQ1 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 TPS628501B0QDRLRQ1?
For technical support, including TPS628501B0QDRLRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS628501B0QDRLRQ1 requirements.
6.How does Aetrix verify that TPS628501B0QDRLRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS628501B0QDRLRQ1 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 TPS628501B0QDRLRQ1 meets industry standards.
7.What is the process for return or replacement of TPS628501B0QDRLRQ1?
All TPS628501B0QDRLRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS628501B0QDRLRQ1, 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 TPS628501B0QDRLRQ1 part is unused and in its original packaging.
Return procedure for TPS628501B0QDRLRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS628501B0QDRLRQ1 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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