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Texas Instruments TPS629211QDYCRQ1
- Part No.:
- TPS629211QDYCRQ1
- Manufacturer:
- Texas Instruments
- Package:
- SOT-583
- Datasheet:
-
TPS629211QDYCRQ1.pdf
- Description:
- IC REG BUCK ADJ 1A SOT583
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TPS629211QDYCRQ1 from Texas Instruments is an AEC-Q100 Grade 2 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 enabling seamless PWM/PFM transition across 3-V to 10-V input. It serves as a primary power rail regulator in ADAS camera modules requiring low-noise, high-efficiency operation at light loads.
For engineers reviewing the TPS629211QDYCRQ1 datasheet, TPS629211QDYCRQ1 pinout, TPS629211QDYCRQ1 application, or TPS629211QDYCRQ1 equivalent, key selection criteria include its 2.5-MHz/1-MHz configurable switching frequency, internal/external feedback flexibility via FB/VSET pin, precise enable threshold (VIH = 0.97 V), power-good output, and 0.5-mm-pitch SOT-5X3 package compatibility with space-constrained automotive PCB layouts.
Technical Context
The TPS629211QDYCRQ1 implements TI's DCS-Control architecture with direct voltage feedback path and integrated compensation, enabling fast transient response without external loop components. Its control logic interprets MODE/S-CONF pin resistance during startup to configure switching frequency (1 MHz or 2.5 MHz), feedback mode (FB external divider or VSET internal resistor-selectable), and discharge behavior-locking configuration permanently after soft-start.
It integrates high-side (250-mΩ) and low-side (85-mΩ) MOSFETs with cycle-by-cycle current limiting (1.5–2.1 A HS, 1.3–1.9 A LS), thermal shutdown at 170°C, and undervoltage lockout with 200-mV hysteresis. The VOS pin enables remote output voltage sensing for improved regulation accuracy under load, while PG provides open-drain power-good signaling referenced to FB nominal voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3 V to 10 V - supports single-cell/multi-cell Li-ion, 5-V/9-V automotive rails, and cold-crank tolerant operation down to 3 V. |
| Output Current | Up to 1 A - sufficient for powering SoCs, image sensors, and CAN transceivers in ADAS domain controllers. |
| Quiescent Current | 4 µA typical - enables >90% efficiency at 100-µA loads, critical for always-on vehicle subsystems. |
| Output Voltage Accuracy | ±1% at TJ = 0°C to 85°C - ensures stable core voltage for microcontrollers and FPGAs without post-regulation. |
| Switching Frequency | Selectable 1 MHz or 2.5 MHz - allows trade-off between EMI filtering size (higher fSW) and light-load efficiency (lower fSW). |
| RDS(on) | 250 mΩ (HS), 85 mΩ (LS) - minimizes conduction loss and thermal rise in compact SOT-5X3 footprint. |
| Package | SOT-5X3 (DYC), 0.5-mm pitch, 1.6 mm × 2.1 mm - enables high-density layout in safety-critical automotive modules. |
Pinout & Package
SOT-5X3 (DYC) package: 8-pin, 0.5-mm pitch, 1.60 mm × 2.10 mm body size including pins; thermally enhanced for automotive junction temperatures up to 150°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FB/VSET | Feedback configuration input | Configurable as voltage feedback node (external divider) or VSET pin (resistor-to-GND selects 1 of 18 fixed outputs from 0.4 V to 5.5 V). |
| PG | Open-drain power-good output | Signals valid output regulation (93–99% of VFB) with 32-µs delay; requires external pull-up for sequencing multi-rail systems. |
| VOS | Remote output voltage sense | Connects directly to positive terminal of output capacitor to compensate for PCB trace IR drop and improve load regulation. |
| SW | Switch node | Internal connection to high-side/low-side MOSFETs; requires low-inductance layout and proper snubbing for EMI control. |
| GND | Power ground | Primary return path for power switches and control circuitry; must be tied to low-impedance thermal pad for thermal performance. |
| VIN | Input power supply | Accepts 3–10 V; requires ≥3-µF ceramic input capacitor placed adjacent to VIN and GND pins per layout guidelines. |
| EN | Enable input with precision threshold | Starts conversion when VIH ≥ 0.97 V; shutdown at VIL ≤ 0.9 V; internal pulldown prevents floating; supports RC-delayed power-up. |
| MODE/S-CONF | Startup configuration pin | Resistor value (7.5 kΩ–249 kΩ) sets switching frequency, feedback mode, discharge enable, and PFM/PWM behavior-locked at startup. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control topology with internal compensation | Eliminates need for external compensation network; achieves <10-µs load transient response with small 2.2-µH inductor and low-ESR capacitors. |
| Configurable MODE/S-CONF pin | Single resistor selects 1 of 16 Smart-CONFIG options-enabling deterministic startup behavior without runtime reconfiguration. |
| 100% duty cycle capability | Supports dropout operation down to VOUT + 0.3 V, allowing regulation near input rail for battery-powered systems during brownout. |
| Output discharge function | Active discharge via internal 7.5–20-Ω resistor on VOS pin ensures controlled VOUT ramp-down during disable, preventing back-powering of downstream circuits. |
| AEC-Q100 Grade 2 qualification | Validated for −40°C to +150°C junction temperature, HBM ESD Level 2 (±2 kV), CDM Level C4B (±750 V)-suitable for under-hood applications. |
Applications
| ADAS Camera Module Power | Infotainment System Core Rail |
|---|---|
Use Scenario: Powers 1.2-V image sensor and ISP in front-facing ADAS camera operating continuously in parking mode. IC Role / Device Role / Timing Role: Primary buck regulator providing tightly regulated, low-noise 1.2-V rail with ultra-low IQ to minimize battery drain during extended idle periods. Use Value: 4-µA quiescent current enables >14-day battery hold-up time; ±1% accuracy maintains sensor ADC linearity across temperature. |
Use Scenario: Supplies 3.3-V core voltage to infotainment head unit MCU and display interface ICs. IC Role / Device Role / Timing Role: High-efficiency point-of-load converter supporting dynamic load steps from 10 mA (standby) to 800 mA (video decode). Use Value: Seamless PWM/PFM transition maintains >85% efficiency across full load range; PG signal sequences 3.3-V rail before 1.8-V I/O rail. |
| Vehicle Body Control Unit | Electric Powertrain Gateway |
Use Scenario: Regulates 5.0-V supply for LIN transceivers and LED drivers in door module ECU. IC Role / Device Role / Timing Role: Fixed-output buck converter configured via VSET pin for factory-set 5.0-V output with no external resistors. Use Value: 18 internal VSET options eliminate BOM cost and placement error risk; 250-mΩ/85-mΩ RDS(on) limits thermal rise at 500-mA continuous load. |
Use Scenario: Generates isolated 1.8-V auxiliary rail for CAN FD controller in 48-V mild-hybrid gateway. IC Role / Device Role / Timing Role: Input-capable buck stage accepting wide 3–10-V range from pre-regulated 12-V bus derived from 48-V DC/DC. Use Value: 3-V minimum input supports cold-crank down to 6.5-V battery; 150°C junction rating ensures reliability near power electronics heat sources. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS629210QDYCRQ1 | Identical pinout and features but rated for 0–1-A output; lacks VSET internal divider option-requires external FB resistor network. | Suitable where design flexibility demands adjustable output voltage across multiple variants using same PCB layout. | Choose when external feedback is preferred for fine-tuning or when VSET configurability is unnecessary. |
| TPS629206QDYCRQ1 | Lower 0.6-A output current rating; identical DCS-Control, package, and AEC-Q100 qualification; shares MODE/S-CONF resistor table. | Applicable in lower-power domains like mirror control or seat memory modules where 1-A headroom is excessive. | Choose to reduce cost and thermal margin where peak load remains below 600 mA. |
Compared with TPS629210QDYCRQ1 and TPS629206QDYCRQ1, the TPS629211QDYCRQ1 uniquely combines 1-A capability with factory-programmable VSET output selection-reducing BOM count and eliminating trimming resistors in high-volume automotive production.
Availability
TPS629211QDYCRQ1 is available at Aetrix Electronics and suitable for advanced driver assistance systems (ADAS), automotive infotainment systems, and vehicle body electronics requiring stable component supply with full AEC-Q100 compliance and long-term automotive lifecycle support.
Supply support for TPS629211QDYCRQ1 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 ICs and functional safety design.
The TPS6292xx-Q1 product line delivers highly integrated, AEC-Q100-qualified DC-DC converters optimized for space-constrained, thermally demanding automotive subsystems-including ADAS, infotainment, and body electronics-where low IQ, high accuracy, and robust protection are mandatory.
FAQ
What is the maximum junction temperature specification for the TPS629211QDYCRQ1?
The TPS629211QDYCRQ1 is qualified for operation up to +150°C junction temperature per AEC-Q100 Grade 2 requirements. Thermal derating begins above this limit, and the device triggers thermal shutdown at 170°C to protect itself. Its SOT-5X3 (DYC) package achieves 55°C/W junction-to-ambient thermal resistance on a standard JEDEC PCB, enabling reliable operation in under-hood environments when properly heatsinked.
Does the TPS629211QDYCRQ1 support both external feedback and internal VSET configuration?
Yes, the TPS629211QDYCRQ1 supports both modes via the FB/VSET pin. When configured as FB, it accepts an external resistor divider for adjustable output (0.6 V to 5.5 V). When configured as VSET, a single resistor to GND selects one of 18 factory-trimmed outputs from 0.4 V to 5.5 V. Configuration is determined by the MODE/S-CONF pin state during startup and cannot be changed dynamically.
How does the MODE/S-CONF pin determine switching frequency and operating mode?
The MODE/S-CONF pin uses resistor-based Smart-CONFIG encoding during startup to set switching frequency (1 MHz or 2.5 MHz), feedback mode (FB or VSET), output discharge enable, and PFM/PWM behavior. For example, a 14.3-kΩ resistor configures 1-MHz forced PWM with discharge enabled, while 34.0-kΩ selects 2.5-MHz forced PWM in VSET mode. No external logic is needed-configuration is fully passive and deterministic.
What is the purpose of the VOS pin on the TPS629211QDYCRQ1?
The VOS pin on the TPS629211QDYCRQ1 provides remote output voltage sensing by connecting directly to the positive terminal of the output capacitor. This compensates for voltage drop across PCB traces and improves load regulation accuracy-especially critical in high-current or long-trace automotive applications. It is required in VSET mode and optional but recommended in FB mode.
Is the TPS629211QDYCRQ1 pin-compatible with other devices in the TPS6292xx-Q1 family?
Yes, the TPS629211QDYCRQ1 is pin-to-pin compatible with TPS629210QDYCRQ1, TPS629206QDYCRQ1, and TPS629203QDYCRQ1 in the same SOT-5X3 (DYC) package. This enables scalable power design-swapping parts based on output current needs (0.3 A to 1 A) without PCB revision-while retaining identical layout, thermal design, and peripheral component values.
TPS629211QDYCRQ1 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
TPS629211QDYCRQ1 FAQ
1.How can I place an order for TPS629211QDYCRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS629211QDYCRQ1 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 TPS629211QDYCRQ1 reliable?
The price and inventory of TPS629211QDYCRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS629211QDYCRQ1 is usually 5 days.
3.What payment methods are accepted for TPS629211QDYCRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS629211QDYCRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS629211QDYCRQ1?
TPS629211QDYCRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS629211QDYCRQ1 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 TPS629211QDYCRQ1?
For technical support, including TPS629211QDYCRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS629211QDYCRQ1 requirements.
6.How does Aetrix verify that TPS629211QDYCRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS629211QDYCRQ1 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 TPS629211QDYCRQ1 meets industry standards.
7.What is the process for return or replacement of TPS629211QDYCRQ1?
All TPS629211QDYCRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS629211QDYCRQ1, 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 TPS629211QDYCRQ1 part is unused and in its original packaging.
Return procedure for TPS629211QDYCRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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