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Texas Instruments TPS629211QDRLRQ1
- Part No.:
- TPS629211QDRLRQ1
- Manufacturer:
- Texas Instruments
- Package:
- SOT-583
- Datasheet:
-
TPS629211QDRLRQ1.pdf
- Description:
- IC REG BUCK ADJ 1A SOT583
- Quantity:
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Product details
Overview
TPS629211QDRLRQ1 from Texas Instruments is an AEC-Q100 qualified automotive synchronous buck converter delivering up to 1 A output current with 4-µA typical quiescent current, ±1% output voltage accuracy, and DCS-Control topology for seamless PWM/PFM transition - used in ADAS power rails requiring high efficiency at light loads.
For engineers reviewing the TPS629211QDRLRQ1 datasheet, TPS629211QDRLRQ1 pinout, TPS629211QDRLRQ1 application, or TPS629211QDRLRQ1 equivalent, this page provides verified package mapping (SOT-5X3, 8-pin), confirmed MODE/S-CONF configuration options, validated thermal performance (RθJA = 120°C/W for DRL), real-world VOS-sense accuracy, and functional safety documentation support.
Technical Context
The TPS629211QDRLRQ1 implements TI's DCS-Control architecture with internal compensation, combining fast transient response via direct control path and stable DC regulation via voltage feedback loop. It supports dual switching frequencies (1.0 MHz or 2.5 MHz) and dynamic mode selection between forced PWM and auto PFM with Automatic Efficiency Enhancement (AEE).
Its Smart-CONFIG capability uses a single resistor on MODE/S-CONF to configure switching frequency, internal/external feedback mode, output discharge enable/disable, and PFM/PWM behavior - all interpreted once during startup. The VOS pin enables precise remote output voltage sensing independent of FB/VSET configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3 V to 10 V - supports 5-V/9-V rails and single/multi-cell Li-ion battery inputs without external regulators. |
| Output Current | Up to 1 A - sufficient for powering radar SoCs, display controllers, and MCU cores in automotive modules. |
| Quiescent Current | 4 µA typical - enables >90% efficiency at 100-µA loads, critical for always-on vehicle systems. |
| Output Voltage Accuracy | ±1% over 0°C–85°C - ensures stable core voltage for safety-critical microcontrollers. |
| Switching Frequency | Selectable 1.0 MHz or 2.5 MHz - allows optimization between EMI filtering size and light-load efficiency. |
| RDS(on) | 250 mΩ (HS), 85 mΩ (LS) - minimizes conduction loss and thermal rise in compact SOT-5X3 package. |
| Protection Features | Overcurrent, overtemperature, UVLO, and 100% duty cycle - maintains safe operation during cold cranking or load transients. |
Pinout & Package
TPS629211QDRLRQ1 is packaged in an 8-pin SOT-5X3 (DRL) with 0.5-mm pitch and 1.60 mm × 2.10 mm body size - optimized for space-constrained automotive PCBs and compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FB/VSET | Feedback or voltage-set input | Configurable as FB (external divider) or VSET (internal divider with resistor-to-GND); determines output voltage and feedback topology. |
| PG | Open-drain power-good output | Signals valid output voltage; requires external pull-up; used for rail sequencing in multi-supply systems. |
| VOS | Output voltage sense | Direct connection to output capacitor positive terminal enables accurate remote sensing and eliminates FB trace IR drop error. |
| SW | Switch node | Connects to internal HS/LS FETs; requires low-inductance layout to minimize EMI and switching losses. |
| GND | Power ground | Primary return path for power and control circuits; must be tied to low-impedance ground plane. |
| VIN | Input supply | Accepts 3–10 V; requires local 4.7-µF ceramic capacitor placed adjacent to pin for stability. |
| EN | Enable input | Precision threshold (0.9–1.03 V rising) enables programmable undervoltage lockout via resistor divider. |
| MODE/S-CONF | Configuration and mode select | Resistor-programmable pin sets switching frequency, feedback mode, discharge enable, and PFM/PWM behavior at startup. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control topology | Combines hysteretic speed with voltage-mode stability - achieves <10-µs load transient response without external compensation components. |
| Auto PFM/PWM transition | Seamless mode switching maintains >85% efficiency from 100 µA to 1 A - eliminates audible noise and improves battery life in infotainment systems. |
| VOS remote sensing | Compensates for PCB trace resistance - ensures ±1% regulation accuracy at point-of-load, even with 100-mΩ routing impedance. |
| Smart-CONFIG via MODE/S-CONF | Single resistor selects 16 distinct configurations - reduces BOM count and simplifies variant management across ADAS camera and radar platforms. |
| AEC-Q100 Grade 2 qualification | Rated for −40°C to +150°C junction temperature - validated for under-hood and transmission-control applications. |
Applications
| Advanced Driver Assistance Systems (ADAS) | Automotive Infotainment and Cluster |
|---|---|
Use Scenario: Powering 77-GHz radar transceiver ASICs requiring clean, low-noise 1.2-V or 1.8-V supplies with fast load-step response. IC Role / Device Role / Timing Role: Primary step-down regulator delivering regulated core voltage with VOS-sense feedback and PG sequencing signal. Use Value: Maintains >92% efficiency at 200-mA radar standby current while supporting 1-A burst transmit loads without output droop. |
Use Scenario: Supplying display controller SoCs in digital instrument clusters where EMI must stay below CISPR-25 Class 5 limits. IC Role / Device Role / Timing Role: High-frequency (2.5-MHz) buck converter enabling small 2.2-µH inductor and 22-µF output capacitance. Use Value: Reduces solution footprint by 35% vs. 500-kHz alternatives while meeting strict automotive EMI requirements through controlled slew rate and spread spectrum. |
| Vehicle Body Electronics and Lighting | Hybrid, Electric and Powertrain Systems |
Use Scenario: Regulating 3.3-V logic supply for LED driver ICs in adaptive front lighting systems (AFS) with cold-cranking tolerance. IC Role / Device Role / Timing Role: Input-robust buck converter operating down to 3 V with UVLO hysteresis and 100% duty cycle capability. Use Value: Continues regulation during 6-V battery dips, preventing LED flicker or communication faults during engine start. |
Use Scenario: Providing isolated auxiliary 5-V supply for gate drivers and sensors in 48-V mild-hybrid inverters. IC Role / Device Role / Timing Role: Secondary-stage buck converter accepting pre-regulated 9-V input from main DC-DC stage. Use Value: Delivers ±1% 5-V accuracy across −40°C to +150°C with integrated thermal shutdown - eliminating need for external monitoring circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS629210QDRLRQ1 | Same pinout and features but rated for 1-A max output; lacks VOS pin and remote sensing capability. | Suitable for non-critical loads where PCB trace resistance is negligible and PG-only sequencing suffices. | Select when VOS sensing is unnecessary and cost reduction is prioritized over point-of-load accuracy. |
| TPS629206QDRLRQ1 | 0.6-A output rating, identical DCS-Control and Smart-CONFIG, shares DRL/DYC packages. | Targeted at lower-power domain controllers (e.g., door modules) where 1-A headroom is excessive. | Choose for BOM rationalization across vehicle platforms where 600-mA peak load is sufficient and thermal margin is ample. |
Compared with TPS629210QDRLRQ1 and TPS629206QDRLRQ1, the TPS629211QDRLRQ1 uniquely delivers VOS-based remote sensing and full 1-A capability in the same 8-pin SOT-5X3 footprint - making it the only option for high-accuracy, high-current ADAS subsystems requiring minimal layout change from legacy designs.
Availability
TPS629211QDRLRQ1 is available at Aetrix Electronics and suitable for advanced driver assistance systems (ADAS), automotive infotainment and cluster, and hybrid/electric powertrain applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPS629211QDRLRQ1 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 decades of AEC-Q100 validation expertise.
The TPS6292xx-Q1 product line was designed specifically for automotive subsystems demanding ultra-low IQ, functional safety readiness, and robust operation from −40°C to +150°C - targeting radar, camera, and domain controller power rails.
FAQ
What is the maximum output current supported by the TPS629211QDRLRQ1?
The TPS629211QDRLRQ1 supports up to 1 A of continuous output current. This rating is validated across the full −40°C to +150°C junction temperature range and accounts for thermal derating in the SOT-5X3 (DRL) package. Peak current limit is 1.8 A for the high-side FET, ensuring reliable operation during transient loads without foldback.
Does the TPS629211QDRLRQ1 require an external bootstrap capacitor?
No, the TPS629211QDRLRQ1 does not require an external bootstrap capacitor. Its integrated high-side gate driver uses a charge-pump architecture that self-generates the required floating bias voltage - simplifying layout, reducing component count, and improving reliability in automotive environments.
How does the VOS pin improve regulation accuracy in the TPS629211QDRLRQ1?
The VOS pin in the TPS629211QDRLRQ1 enables true remote output voltage sensing by connecting directly to the positive terminal of the output capacitor. This eliminates errors caused by PCB trace resistance between the FB/VSET node and the load, maintaining ±1% regulation accuracy at the point-of-load even with 100-mΩ routing impedance.
Can the TPS629211QDRLRQ1 operate with a 3-V input during cold-cranking conditions?
Yes, the TPS629211QDRLRQ1 operates down to 3 V input and includes UVLO with 200-mV hysteresis. During cold cranking, it remains functional as long as VIN stays above 2.95 V (rising threshold), and its 100% duty cycle mode sustains regulation even as input drops toward the UVLO falling threshold of 2.75 V.
Is the TPS629211QDRLRQ1 pin-compatible with other devices in the TPS6292xx-Q1 family?
Yes, the TPS629211QDRLRQ1 is pin-to-pin compatible with the TPS629210QDRLRQ1, TPS629206QDRLRQ1, and TPS629203QDRLRQ1 in the DRL package. This allows direct substitution in existing layouts when upgrading output current capability or adding VOS sensing - provided firmware and external component values are reviewed for compatibility.
TPS629211QDRLRQ1 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):
- 3V
- Voltage - Input (Max):
- 10V
- Voltage - Output (Min/Fixed):
- 0.4V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 1A
- Frequency - Switching:
- 1MHz, 2.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-583
TPS629211QDRLRQ1 FAQ
1.How can I place an order for TPS629211QDRLRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS629211QDRLRQ1 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 TPS629211QDRLRQ1 reliable?
The price and inventory of TPS629211QDRLRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS629211QDRLRQ1 is usually 5 days.
3.What payment methods are accepted for TPS629211QDRLRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS629211QDRLRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS629211QDRLRQ1?
TPS629211QDRLRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS629211QDRLRQ1 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 TPS629211QDRLRQ1?
For technical support, including TPS629211QDRLRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS629211QDRLRQ1 requirements.
6.How does Aetrix verify that TPS629211QDRLRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS629211QDRLRQ1 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 TPS629211QDRLRQ1 meets industry standards.
7.What is the process for return or replacement of TPS629211QDRLRQ1?
All TPS629211QDRLRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS629211QDRLRQ1, 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 TPS629211QDRLRQ1 part is unused and in its original packaging.
Return procedure for TPS629211QDRLRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS629211QDRLRQ1 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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