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Texas Instruments TPS628113HQWRWYRQ1
- Part No.:
- TPS628113HQWRWYRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 9-VFQFN
- Datasheet:
-
TPS628113HQWRWYRQ1.pdf
- Description:
- IC REG BUCK 3.3V 1A 9VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,677
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Product details
Overview
TPS628113HQWRWYRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive synchronous step-down DC/DC converter delivering 1 A continuous output current, fixed 3.3 V output voltage, and ±1% feedback voltage accuracy in PWM mode. It operates from 2.75 V to 6 V input, supports adjustable switching frequency from 1.8 MHz to 4 MHz, and features active output discharge, power-good monitoring, and wettable-flank VQFN packaging - deployed in infotainment head units and ADAS sensor fusion ECUs.
For engineers reviewing the TPS628113HQWRWYRQ1 datasheet, TPS628113HQWRWYRQ1 pinout, TPS628113HQWRWYRQ1 application, or TPS628113HQWRWYRQ1 equivalent, key selection criteria include its fixed 3.3 V output, 1 A current rating, AEC-Q100 qualification, spread-spectrum clocking option, and precise enable with user-defined UVLO for rail sequencing in automotive power domains.
Technical Context
The TPS628113HQWRWYRQ1 implements peak current mode control with internal compensation selectable via resistor on COMP/FSET, enabling stable operation with ceramic output capacitors as low as 15 µF (for VOUT ≥ 3.3 V). Its MODE/SYNC pin supports forced PWM or automatic PFM/PWM transition and external synchronization from 1.8 MHz to 4 MHz.
It integrates low-RDS(on) MOSFETs (HS: 37–60 mΩ, LS: 15–35 mΩ at VIN ≥ 5 V), 100% duty cycle capability, and a dedicated SS/TR pin for soft-start timing or voltage tracking. The PG output uses a window comparator for accurate power-good assertion across line and load variations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 1 A continuous - supports compact power rails in space-constrained automotive modules without external current boosting. |
| Output Voltage | Fixed 3.3 V - eliminates external feedback resistors, reduces BOM count, and ensures consistent logic-level supply for MCU peripherals and sensors. |
| Input Voltage Range | 2.75 V to 6 V - compatible with 3.3 V, 5 V, and battery-backed automotive systems including cold-crank (down to 2.75 V). |
| Switching Frequency | 1.8 MHz to 4 MHz - enables use of small 0.33–0.47 µH inductors and minimizes EMI in high-density layouts. |
| Quiescent Current | 15 µA typical - extends battery life in always-on vehicle subsystems such as telematics wake-up circuits. |
| Output Accuracy | ±1% in PWM mode - ensures reliable operation of 3.3 V I/O interfaces, ADC references, and communication transceivers. |
| Package | VQFN-9 (RWY), 3.0 mm × 2.0 mm with wettable flanks - supports automated optical inspection (AOI) and high-yield reflow in automotive PCB assembly. |
Pinout & Package
VQFN-9 (RWY) package, 3.0 mm × 2.0 mm body size, 0.4 mm pitch, wettable flanks for solder joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 8) | Enable control input | Logic-compatible input with 1.1 V rising threshold; enables precise undervoltage lockout and power-rail sequencing via external resistor divider. |
| FB (Pin 5) | Feedback reference node | Internally tied to 3.3 V output - no external resistor divider required; simplifies layout and improves noise immunity. |
| GND (Pin 4) | Power and signal ground | Primary thermal and electrical return path; must be connected to low-impedance PCB ground plane for stability and thermal performance. |
| MODE/SYNC (Pin 1) | Operating mode select / sync input | Pull low for PFM/PWM auto-mode; pull high for forced PWM; accepts external 1.8–4 MHz clock for synchronized multi-rail designs. |
| COMP/FSET (Pin 7) | Compensation & frequency set | Resistor-to-GND sets both switching frequency and internal compensation; tied to GND/VIN for fixed 2.25 MHz operation. |
| PG (Pin 9) | Open-drain power-good output | Asserts high-Z when output is within ±5% of 3.3 V; used for system reset, supervisor IC triggering, or cascaded enable sequencing. |
| SS/TR (Pin 6) | Soft-start / tracking input | Capacitor-to-GND sets startup ramp time; can track external voltage source for controlled rail ramping during power-up. |
| SW (Pin 3) | Switch node | Connects to internal HS/LS MOSFETs; requires low-inductance routing and local ceramic capacitor to minimize ringing and EMI. |
| VIN (Pin 2) | Input power supply | Accepts 2.75–6 V; requires 5–10 µF effective input capacitance placed adjacent to pin for transient suppression and loop stability. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 | Qualified for –40°C to +125°C ambient operation - meets automotive reliability and lifetime requirements for front-end electronics. |
| Active Output Discharge | Integrated 50 Ω discharge path - ensures rapid, controlled output voltage decay during shutdown, preventing back-powering of downstream circuitry. |
| Spread Spectrum Clocking (SSC) | Optional feature enabled via configuration - reduces peak EMI by modulating switching frequency, easing compliance with CISPR 25 Class 5. |
| Precision Enable Input | 100 mV hysteresis between rising (1.1 V) and falling (1.0 V) thresholds - enables robust RC-based power-up delays and custom UVLO thresholds. |
| Power-Good Window Comparator | Detects output within ±5% of 3.3 V (UVP: 95%, OVP: 110%) with 40 µs deglitch - provides reliable system-level power validation without external supervision. |
Applications
| Infotainment Head Unit | Hybrid Reconfigurable Cluster |
|---|---|
Use Scenario: Powering display interface ICs, touch controllers, and audio codecs in centralized automotive infotainment systems. IC Role / Device Role / Timing Role: Primary 3.3 V point-of-load regulator supplying logic and analog circuitry with tight voltage tolerance and fast transient response. Use Value: Fixed 3.3 V output eliminates feedback resistor errors; ±1% accuracy ensures reliable HDMI CEC, I²C, and SPI communication under load transients. |
Use Scenario: Supplying configurable instrument cluster microcontrollers and TFT-LCD bias rails requiring clean, sequenced power-up. IC Role / Device Role / Timing Role: Secondary regulated rail generator with SS/TR pin enabling voltage tracking to main 5 V domain for glitch-free initialization. Use Value: Soft-start ramp control prevents inrush current spikes during cluster boot; PG output triggers MCU reset only after stable 3.3 V is established. |
| Telematics Control Unit | Surround View ECU |
Use Scenario: Providing always-on 3.3 V supply to GNSS receivers, cellular modems, and CAN transceivers in connected vehicle gateways. IC Role / Device Role / Timing Role: Low-quiescent-current buck converter maintaining system readiness during sleep modes while supporting wake-on-event functionality. Use Value: 15 µA IQ enables >10-year battery backup life in telematics modules; EN pin hysteresis prevents false wake-ups from noisy supply lines. |
Use Scenario: Powering image signal processors (ISPs) and high-speed serializer/deserializer (SerDes) links in multi-camera surround-view systems. IC Role / Device Role / Timing Role: High-efficiency, low-noise 3.3 V source operating at 2.25 MHz to avoid interference with camera pixel clocks and video data lanes. Use Value: Spread spectrum clocking reduces spectral peaks near 2.25 MHz harmonics, minimizing crosstalk into MIPI CSI-2 video streams. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS628110AQWRWYRQ1 | Fixed 1.2 V output, same 1 A rating, identical package and pinout | Targets core logic rails (e.g., MCU cores, DDR I/O), not 3.3 V peripheral interfaces | Select when powering 1.2 V digital domains; not suitable for 3.3 V I/O or analog circuitry requiring exact voltage match. |
| TPS628123HQWRWYRQ1 | 2 A output current, fixed 3.3 V, same family architecture and package | Supports higher-current loads like multi-lane LVDS transmitters or dual-core SoCs with integrated GPU | Choose when system load exceeds 1 A or future-proofing for higher-power variants is required; footprint-compatible upgrade path. |
Compared with TPS628113HQWRWYRQ1, TPS628110AQWRWYRQ1 delivers different output voltage but identical sequencing and protection features, while TPS628123HQWRWYRQ1 offers doubled current capacity in the same footprint - enabling scalable power design across vehicle platforms without layout revision.
Availability
TPS628113HQWRWYRQ1 is available at Aetrix Electronics and suitable for infotainment head units, hybrid reconfigurable clusters, and telematics control units requiring stable component supply across automotive production lifecycles.
Supply support for TPS628113HQWRWYRQ1 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-grade power management solutions with over 50 years of industry experience.
The TPS6281x-Q1 product line delivers high-efficiency, AEC-Q100-qualified DC/DC converters optimized for infotainment, ADAS, and body electronics - emphasizing low EMI, precise sequencing, and extended temperature reliability.
FAQ
What is the output voltage of the TPS628113HQWRWYRQ1?
The TPS628113HQWRWYRQ1 delivers a fixed 3.3 V output voltage. This is factory-trimmed and does not require external feedback resistors. Its feedback voltage accuracy is ±1% in PWM mode across –40°C to +125°C ambient, ensuring stable operation for 3.3 V I/O interfaces, sensor interfaces, and communication peripherals in automotive systems.
Does the TPS628113HQWRWYRQ1 support external synchronization?
Yes, the TPS628113HQWRWYRQ1 supports external clock synchronization via the MODE/SYNC pin. When a 1.8 MHz to 4 MHz square wave is applied to this pin - with a resistor from COMP/FSET to GND installed - the device locks to the external frequency within 50 µs. Synchronization is not possible if COMP/FSET is tied directly to GND or VIN.
What package type and dimensions does the TPS628113HQWRWYRQ1 use?
The TPS628113HQWRWYRQ1 uses the RWY package: a 9-pin VQFN measuring 3.0 mm × 2.0 mm with 0.4 mm pitch and wettable flanks. This package supports automated optical inspection (AOI) and provides low thermal resistance (RθJA = 71.1°C/W), making it ideal for thermally demanding automotive PCB assemblies.
Can the TPS628113HQWRWYRQ1 operate in power-save mode?
Yes, the TPS628113HQWRWYRQ1 automatically enters power-save (PFM) mode at light loads when the MODE/SYNC pin is pulled low. In PFM mode, switching frequency decreases linearly with load to maintain high efficiency down to microamp-level currents. Forced PWM mode is selected by pulling MODE/SYNC high.
Is spread spectrum clocking enabled by default on the TPS628113HQWRWYRQ1?
No, spread spectrum clocking (SSC) is optional and disabled by default on the TPS628113HQWRWYRQ1. It can be enabled through specific configuration of external components per the datasheet's application section. SSC reduces EMI peak emissions, aiding CISPR 25 Class 5 compliance in sensitive automotive RF environments.
TPS628113HQWRWYRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 9-VFQFN
- 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):
- 2.75V
- 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 (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 9-VQFN-HR (3x2)
TPS628113HQWRWYRQ1 FAQ
1.How can I place an order for TPS628113HQWRWYRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS628113HQWRWYRQ1 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 TPS628113HQWRWYRQ1 reliable?
The price and inventory of TPS628113HQWRWYRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS628113HQWRWYRQ1 is usually 5 days.
3.What payment methods are accepted for TPS628113HQWRWYRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS628113HQWRWYRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS628113HQWRWYRQ1?
TPS628113HQWRWYRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS628113HQWRWYRQ1 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 TPS628113HQWRWYRQ1?
For technical support, including TPS628113HQWRWYRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS628113HQWRWYRQ1 requirements.
6.How does Aetrix verify that TPS628113HQWRWYRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS628113HQWRWYRQ1 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 TPS628113HQWRWYRQ1 meets industry standards.
7.What is the process for return or replacement of TPS628113HQWRWYRQ1?
All TPS628113HQWRWYRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS628113HQWRWYRQ1, 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 TPS628113HQWRWYRQ1 part is unused and in its original packaging.
Return procedure for TPS628113HQWRWYRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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