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Texas Instruments TPS628501QDRLRQ1
- Part No.:
- TPS628501QDRLRQ1
- Manufacturer:
- Texas Instruments
- Package:
- SOT-583
- Datasheet:
-
TPS628501QDRLRQ1.pdf
- Description:
- IC REG BUCK ADJ 1A SOT583
- Quantity:
- Payment:
- Shipping:
Inventory:13,908
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Product details
Overview
TPS628501QDRLRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive synchronous step-down DC/DC converter delivering up to 1A continuous output current, operating from 2.7V–6V input, with 0.6V–5.5V adjustable output voltage, ±1% PWM output accuracy, and 17µA quiescent current-designed for ADAS camera power rails.
For engineers reviewing the TPS628501QDRLRQ1 datasheet, TPS628501QDRLRQ1 pinout, TPS628501QDRLRQ1 application, or TPS628501QDRLRQ1 equivalent, key selection criteria include its SOT583 package footprint, 1.8MHz–4MHz externally adjustable switching frequency, forced-PWM/PFM mode flexibility, active output discharge, and integrated power-good with window comparator.
Technical Context
The TPS628501QDRLRQ1 implements peak current mode control with internal compensation selectable via COMP/FSET pin configuration-supporting two compensation settings optimized for either minimal (≥8µF) or larger (≥15µF) output capacitance. Its MODE/SYNC pin enables seamless transition between PFM light-load efficiency and forced PWM operation or external clock synchronization in 1.8MHz–4MHz range.
It integrates low-RDS(on) MOSFETs (65mΩ high-side / 33mΩ low-side at VIN ≥ 5V), supports 100% duty cycle, features precise enable with user-defined UVLO via resistor divider, and includes thermal shutdown at 170°C with 15°C hysteresis-ensuring robust operation across –40°C to +125°C ambient.
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 Current | 1A continuous - sufficient for powering image sensors, SerDes interfaces, and MCU cores in ADAS modules. |
| Quiescent Current | 17µA typical - enables ultra-low standby power in always-on camera systems without compromising wake-up latency. |
| Output Accuracy | ±1% in PWM mode - ensures stable core voltage for precision analog front-ends and high-speed digital logic. |
| Switching Frequency | 1.8MHz to 4MHz - allows compact filter design using ≤0.47µH inductors and avoids AM radio band interference. |
| Thermal Rating | Junction temp up to 150°C - validated for under-hood placement with RθJA = 110°C/W on JEDEC 4-layer board. |
| Package | SOT583 (DRL), 2.1mm × 1.6mm - ultra-small footprint compatible with space-constrained camera modules and ECU PCBs. |
Pinout & Package
SOT583 (DRL) package: 8-pin, 2.10mm × 1.60mm body size (including pins), exposed thermal pad on bottom for enhanced heat dissipation in automotive environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Accepts 2.7V–6V supply; requires local 10µF ceramic input capacitor placed adjacent to minimize loop inductance. |
| SW | Switch node | Connects to external 0.47µH inductor; carries high di/dt switching current-requires tight layout and ground plane return. |
| GND | Power ground | Primary return path for high-current loops; must be connected directly to thermal pad and system ground plane. |
| EN | Enable control | Logic-compatible input with 1.1V rising threshold; supports programmable UVLO and sequencing via external resistor divider. |
| PG | Power-good output | Open-drain signal indicating regulated output within ±5% window; requires external pull-up to monitored rail. |
| FB | Feedback input | 0.6V reference point for adjustable output; connects to resistive divider-high-impedance (≤70nA leakage) minimizes divider error. |
| COMP/FSET | Compensation & frequency set | Configures control-loop compensation and switching frequency via resistor-to-GND (4.5kΩ–100kΩ) or tie-to-rail. |
| MODE/SYNC | Mode control / sync input | Selects PFM/PWM auto-mode (low) or forced PWM (high); accepts external 1.8–4MHz 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 infotainment and ADAS reliability requirements. |
| Active output discharge | 100Ω internal discharge path ensures rapid VOUT ramp-down during disable-prevents back-powering of downstream circuitry. |
| Pseudo-random spread spectrum | Reduces peak EMI by up to 10dB without requiring external filtering-simplifies EMC compliance in dense camera PCBs. |
| 100% duty cycle capability | Enables dropout operation down to VOUT = VIN − 0.1V-critical for maintaining sensor bias during low-battery conditions. |
| Internal soft-start | Fixed 1ms ramp time prevents inrush current-eliminates need for external soft-start timing components. |
Applications
| ADAS Camera Power Supply | Surround View ECU Core Rail |
|---|---|
Use Scenario: Powers CMOS image sensor and ISP in rear-view or side-mirror camera modules. IC Role / Device Role / Timing Role: Primary 1.2V or 1.8V core regulator with fast transient response to handle burst-mode sensor readout. Use Value: 17µA quiescent current extends battery life in parking-assist systems; ±1% accuracy maintains sensor ADC linearity. | Use Scenario: Supplies 3.3V I/O and 1.1V logic rails for multi-camera fusion processors in surround-view ECUs. IC Role / Device Role / Timing Role: Secondary regulator synchronized to main SoC clock via MODE/SYNC pin to reduce beat-frequency noise. Use Value: 1.8–4MHz adjustable frequency avoids interference with video clock harmonics; active discharge prevents latch-up during hot-swap events. |
| Hybrid Cluster Display Backlight Driver Bias | Telematics Control Unit Memory Rail |
Use Scenario: Generates stable 5.0V bias for LED driver ICs in reconfigurable digital instrument clusters. IC Role / Device Role / Timing Role: High-efficiency buck converter operating in forced PWM mode to suppress audible coil whine during display animation. Use Value: 100% duty cycle supports full brightness at low battery (6V→5V); 110°C/W thermal resistance enables convection-cooled layout. | Use Scenario: Provides 1.2V DDR memory supply in LTE/V2X telematics gateways with strict EMI limits. IC Role / Device Role / Timing Role: Low-noise, spread-spectrum-enabled regulator placed near memory subsystem to minimize signal integrity impact. Use Value: Pseudo-random SSC reduces 2.25MHz fundamental emissions by >6dB; PG output validates memory rail before firmware initialization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62901RTER | Higher 3A rating, 2.5V–5.5V input, 15µA IQ, but non-automotive grade and no AEC-Q100 qualification. | Targeted at industrial/commercial portable devices-not validated for automotive temperature or reliability stress testing. | Select only for non-automotive designs where AEC-Q100 is not required and higher current headroom is needed. |
| MPQ4425AGU-AEC1-P | 1.5A continuous, 3.8V–36V input, 20µA IQ, AEC-Q100 Grade 1, but fixed 2.2MHz frequency and no spread spectrum. | Designed for wider-input automotive systems (e.g., body electronics), not optimized for low-VIN ADAS camera rails. | Prefer when input exceeds 6V or when fixed-frequency simplicity outweighs EMI reduction benefits. |
Compared with TPS628501QDRLRQ1, TPS62901RTER offers higher current but lacks automotive qualification, while MPQ4425AGU-AEC1-P supports wider input range yet sacrifices adjustable frequency and spread spectrum-making TPS628501QDRLRQ1 optimal for compact, low-VIN, EMI-sensitive ADAS power stages.
Availability
TPS628501QDRLRQ1 is available at Aetrix Electronics and suitable for ADAS camera modules, surround-view ECUs, and hybrid digital clusters requiring stable component supply with automotive-grade traceability and long-term lifecycle support.
Supply support for TPS628501QDRLRQ1 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 decades of automotive power management expertise.
The TPS62850x-Q1 product line delivers high-efficiency, low-EMI, AEC-Q100-compliant buck converters specifically engineered for advanced driver assistance systems and infotainment power rails.
FAQ
What is the maximum continuous output current supported by the TPS628501QDRLRQ1?
The TPS628501QDRLRQ1 supports 1A continuous output current at junction temperatures up to 125°C. It is rated for 3A peak current at lower junction temperatures (≤85°C), but sustained operation above 1A requires careful thermal design and derating per the device's thermal characteristics in the datasheet.
Does the TPS628501QDRLRQ1 support adjustable output voltage?
Yes, the TPS628501QDRLRQ1 supports adjustable output voltage from 0.6V to 5.5V using an external resistor divider connected to the FB pin. Its internal 0.6V feedback reference and ±1% accuracy in PWM mode enable precise regulation for diverse core and I/O rail requirements.
How does the MODE/SYNC pin function on the TPS628501QDRLRQ1?
The MODE/SYNC pin on the TPS628501QDRLRQ1 serves three roles: pulling it low enables automatic PFM/PWM mode switching, pulling it high forces fixed-frequency PWM operation, and applying a 1.8MHz–4MHz external clock synchronizes switching-enabling deterministic timing across multiple rails in ADAS systems.
Is the TPS628501QDRLRQ1 qualified for automotive applications?
Yes, the TPS628501QDRLRQ1 is AEC-Q100 qualified for automotive applications (Grade 1: –40°C to +125°C ambient), includes functional safety documentation, and meets stringent automotive reliability, ESD (±2000V HBM), and thermal performance requirements defined in its production datasheet.
What package type is used for the TPS628501QDRLRQ1?
The TPS628501QDRLRQ1 uses the SOT583 (DRL) package: an 8-pin, 2.10mm × 1.60mm surface-mount outline with exposed thermal pad. This compact automotive-qualified package enables high-density layout in space-constrained camera modules and ECUs.
TPS628501QDRLRQ1 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:
- 1A
- Frequency - Switching:
- 1.8MHz ~ 4MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-583
TPS628501QDRLRQ1 FAQ
1.How can I place an order for TPS628501QDRLRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS628501QDRLRQ1 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 TPS628501QDRLRQ1 reliable?
The price and inventory of TPS628501QDRLRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS628501QDRLRQ1 is usually 5 days.
3.What payment methods are accepted for TPS628501QDRLRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS628501QDRLRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS628501QDRLRQ1?
TPS628501QDRLRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS628501QDRLRQ1 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 TPS628501QDRLRQ1?
For technical support, including TPS628501QDRLRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS628501QDRLRQ1 requirements.
6.How does Aetrix verify that TPS628501QDRLRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS628501QDRLRQ1 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 TPS628501QDRLRQ1 meets industry standards.
7.What is the process for return or replacement of TPS628501QDRLRQ1?
All TPS628501QDRLRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS628501QDRLRQ1, 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 TPS628501QDRLRQ1 part is unused and in its original packaging.
Return procedure for TPS628501QDRLRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS628501QDRLRQ1 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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