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Texas Instruments TPS6209733QWRGTRQ1
- Part No.:
- TPS6209733QWRGTRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
TPS6209733QWRGTRQ1.pdf
- Description:
- IC REG BUCK 3.3V 2A 16VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,555
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Product details
Overview
TPS6209733QWRGTRQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified 2-A synchronous step-down DC/DC converter with fixed 3.3-V output, iDCS-Control topology, ±1% output voltage accuracy, 2.5-V to 6.0-V input range, and wettable-flank QFN-16 (3 mm × 3 mm) packaging - deployed in automotive gateway and instrumentation cluster power rails.
For engineers reviewing the TPS6209733QWRGTRQ1 datasheet, TPS6209733QWRGTRQ1 pinout, TPS6209733QWRGTRQ1 application, or TPS6209733QWRGTRQ1 equivalent, key selection criteria include forced-PWM/PSM mode flexibility, hiccup short-circuit protection, programmable soft-start via SS/TR pin, power-good open-drain output, and thermal shutdown with 160°C trip point.
Technical Context
The TPS6209733QWRGTRQ1 implements iDCS-Control - a predictive on-time architecture enabling seamless PWM-to-PSM transition and selectable switching frequencies (1.5 MHz to 2.5 MHz) via external resistor on MODE pin. It integrates high-side (42 mΩ typ. @ 5 V) and low-side (40 mΩ typ. @ 5 V) MOSFETs with 3.6-A forward current limit and –1.1-A negative current limit in forced PWM mode.
It supports 100% duty cycle operation for ultra-low dropout, output discharge via 165-Ω internal FET, and voltage tracking via SS/TR pin with 7.5-µA constant-current charge. The device uses internal compensation compatible with ≥150 µF output capacitance and features analog ground (AGND) separation from power ground (PGND) for noise-sensitive automotive applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±1% - eliminates external feedback divider, simplifies layout, ensures stable rail for MCU I/O or CAN transceivers. |
| Input Voltage Range | 2.5 V to 6.0 V - supports direct connection to automotive battery (cold-crank down to 2.5 V) and 3.3-V/5-V intermediate rails. |
| Max Output Current | 2.0 A continuous - sufficient for powering dual-core automotive microcontrollers or multi-rail PMIC front-end stages. |
| Switching Frequency | Selectable 1.5–2.5 MHz - enables compact magnetics (e.g., 1-µH inductor), avoids AM band interference, and supports forced-PWM for EMI control. |
| Efficiency Peak | Up to 97% @ 2 A, VIN = 5 V - reduces thermal load in sealed enclosures and extends battery runtime in always-on telematics modules. |
| Quiescent Current | 57 µA typ. - maintains low standby power in sleep-mode vehicle networks without compromising wake-up responsiveness. |
| Power Good Accuracy | 95% VOUT rising threshold, 90% falling - provides precise sequencing margin for downstream logic and memory initialization. |
Pinout & Package
TPS6209733QWRGTRQ1 is housed in a 3.0 mm × 3.0 mm, 16-pin QFN package with wettable flanks (RGT suffix) and exposed thermal pad connected to AGND - optimized for automated optical inspection (AOI) and thermal reliability in automotive under-hood environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOS | Output voltage sense | Direct connection to output capacitor anode - enables accurate remote sensing and minimizes regulation error due to PCB trace resistance. |
| FB | Feedback reference | Internally tied to 0.8-V reference; for fixed-output variant, TI recommends connecting to AGND to improve thermal performance - no external divider required. |
| MODE | Operation mode select | Connect to AGND for automatic PWM/PSM transition; leave open or tie to resistor for forced-PWM-only - sets switching frequency during power-up detection window. |
| SS/TR | Soft-start & tracking | 7.5-µA constant-current source charges external capacitor to control ramp rate; also accepts external voltage for ratiometric or coincident rail tracking. |
| PG | Power good indicator | Open-drain output sinking ≤1 mA - used for system-level power sequencing (e.g., enable next-stage regulator when 3.3-V rail is valid). |
| EN | Enable control | Logic-high active with 1.6-V min threshold; internal 375-kΩ pull-down ensures safe disable at power-up - supports controlled hot-swap and sleep/wake coordination. |
| SW | Switch node | Four parallel pins (13–16) reduce parasitic inductance and thermal resistance - critical for sustaining 2-A peak currents with minimal voltage overshoot. |
| PGND / AGND | Ground returns | Separate power (pins 5,6) and analog (pin 4) grounds - prevents switching noise from modulating feedback loop and degrading PSRR. |
Key Features
| Feature | Design Value |
|---|---|
| iDCS-Control topology | Enables seamless PWM-to-PSM transition without output voltage glitch - maintains regulation stability across 0–2 A load while optimizing efficiency at light loads. |
| Hiccup short-circuit protection | Triggers after 32 overcurrent events, discharges output, then auto-restarts after 100 µs - limits fault energy and prevents thermal runaway during sustained shorts. |
| 100% duty cycle mode | Activates when VIN approaches VOUT (e.g., 3.6 V → 3.3 V), holding high-side FET fully on - sustains regulation during cold-crank or brownout conditions. |
| Output discharge function | 165-Ω internal FET actively pulls VOUT to GND when EN = low or fault occurs - prevents floating rails that could cause latch-up in downstream logic. |
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C junction temperature, HBM ±2500 V, CDM ±1500 V - meets functional safety requirements for ASIL-B automotive subsystems. |
Applications
| Automotive Gateway | Instrumentation Cluster |
|---|---|
Use Scenario: Powering ARM Cortex-M7-based gateway SoC with dual CAN FD, Ethernet, and LIN interfaces. IC Role / Device Role / Timing Role: Primary 3.3-V supply for communication peripherals and interface buffers. Use Value: Forced-PWM mode suppresses switching noise near sensitive CAN transceivers; PG signal sequences secondary 1.2-V core rail. |
Use Scenario: Supplying TFT-LCD controller, touch controller, and backlight driver in digital instrument panel. IC Role / Device Role / Timing Role: Main 3.3-V rail for display interface logic and SPI peripherals. Use Value: Soft-start via SS/TR pin prevents inrush-induced voltage sag on shared 5-V bus; wettable flanks ensure solder joint reliability during thermal cycling. |
| Telematics Control Unit | Head Unit Audio Subsystem |
Use Scenario: Providing clean 3.3-V bias to GNSS receiver, cellular modem, and secure boot ROM in connected car module. IC Role / Device Role / Timing Role: Noise-isolated auxiliary supply decoupled from main processor rail. Use Value: Separate AGND/PVIN routing and internal compensation support >150 µF ceramic output capacitance - lowers output ripple below 10 mVpp for RF-sensitive receivers. |
Use Scenario: Powering DSP, audio codec, and Class-D amplifier control logic in infotainment head unit. IC Role / Device Role / Timing Role: Stable 3.3-V domain for digital audio interfaces (I²S, SPDIF) and memory buffers. Use Value: ±1% output accuracy ensures consistent ADC reference and DAC full-scale compliance; thermal shutdown protects against enclosure overheating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62130AQRTWRQ1 | Adjustable output (0.8–6.0 V), 3-A rating, same 2.5–6.0-V input, but no SS/TR pin or voltage tracking. | Requires external feedback resistors; better suited for multi-voltage systems needing 1.8-V or 2.5-V rails alongside 3.3-V. | Select when design requires flexible output voltage and higher current headroom, accepting added BOM cost and layout complexity. |
| LM61480QQRGRQ1 | 3.5-A rating, 3.0–36-V input, fixed 3.3-V option (LM61480QQ33RGERQ1), but larger 4-mm × 4-mm QFN and no wettable flanks. | Supports wider input range for 12-V battery systems; lacks AOI-friendly wettable flanks and integrated output discharge. | Choose for high-input-voltage automotive applications where footprint and optical inspection are secondary to input range robustness. |
Compared with TPS6209733QWRGTRQ1, TPS62130AQRTWRQ1 offers higher current and adjustability at the cost of tracking capability and fixed-output simplicity, while LM61480QQRGRQ1 trades wettable-flank reliability and compact size for extended input voltage range - making TPS6209733QWRGTRQ1 optimal for space-constrained, noise-sensitive 3.3-V automotive sub-systems.
Availability
TPS6209733QWRGTRQ1 is available at Aetrix Electronics and suitable for automotive gateway, instrumentation cluster, and telematics applications requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for TPS6209733QWRGTRQ1 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 ICs - with decades of automotive qualification expertise and ISO/TS 16949-certified manufacturing.
The TPS62097-Q1 product line delivers high-efficiency, low-noise DC/DC conversion for ASIL-B automotive subsystems - designed specifically for gateway, head unit, and cluster applications demanding AEC-Q100 Grade 1 reliability and advanced power sequencing features.
FAQ
What is the output voltage tolerance of the TPS6209733QWRGTRQ1 under full load and temperature range?
The TPS6209733QWRGTRQ1 guarantees ±1% output voltage accuracy over –40°C to +125°C junction temperature, 2.5–6.0-V input, and 0–2-A load in PWM mode. In Power Save Mode, accuracy degrades to ±2.1% - verified per Section 6.5 Electrical Characteristics in the SLVSDZ7A datasheet. This tight tolerance ensures reliable operation of 3.3-V I/O interfaces without external regulation.
Does the TPS6209733QWRGTRQ1 require an external feedback resistor network?
No, the TPS6209733QWRGTRQ1 is the fixed 3.3-V output variant and does not require external feedback resistors. Its FB pin is internally referenced to 0.8 V and TI recommends connecting FB directly to AGND for improved thermal performance - eliminating layout sensitivity and reducing BOM count versus adjustable versions like TPS62097-Q1.
How is soft-start configured on the TPS6209733QWRGTRQ1, and what is the minimum startup time?
Soft-start on the TPS6209733QWRGTRQ1 is set by an external capacitor on the SS/TR pin, charged by a 7.5-µA internal current source. Startup time follows tSS = (CSS × 0.8 V) / 7.5 µA. Leaving SS/TR floating configures minimum startup time (~100 ns), while a 100-nF capacitor yields ~10.7 ms - enabling controlled inrush limiting for sensitive downstream loads.
Can the TPS6209733QWRGTRQ1 operate with input voltage as low as 2.5 V while delivering 2 A at 3.3 V?
No - the TPS6209733QWRGTRQ1 cannot regulate 3.3 V from 2.5 V input due to dropout limitations. Minimum input for 3.3-V output at 2 A is approximately 3.6 V, calculated as VIN(min) = VOUT + IOUT × RDS(on) ≈ 3.3 V + 2 A × 42 mΩ = 3.384 V. Below this, the device enters 100% duty cycle but cannot sustain regulation - verify minimum input per application conditions in Section 7.3.1.
What is the purpose of the exposed thermal pad on the TPS6209733QWRGTRQ1 package, and how must it be connected?
The exposed thermal pad on the TPS6209733QWRGTRQ1 is electrically connected to AGND and must be soldered to a dedicated AGND copper pour on the PCB - not left floating or tied to PGND. This connection provides primary thermal conduction path (RθJB = 19.3°C/W) and mechanical anchoring; omitting it risks thermal shutdown and solder joint failure during automotive thermal cycling.
TPS6209733QWRGTRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- iDCS-Control
- Package/Case:
- 16-VFQFN Exposed Pad
- 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):
- 2.5V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 2A
- Frequency - Switching:
- 1.5MHz ~ 2.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 16-VQFN (3x3)
TPS6209733QWRGTRQ1 FAQ
1.How can I place an order for TPS6209733QWRGTRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS6209733QWRGTRQ1 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 TPS6209733QWRGTRQ1 reliable?
The price and inventory of TPS6209733QWRGTRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS6209733QWRGTRQ1 is usually 5 days.
3.What payment methods are accepted for TPS6209733QWRGTRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS6209733QWRGTRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS6209733QWRGTRQ1?
TPS6209733QWRGTRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS6209733QWRGTRQ1 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 TPS6209733QWRGTRQ1?
For technical support, including TPS6209733QWRGTRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS6209733QWRGTRQ1 requirements.
6.How does Aetrix verify that TPS6209733QWRGTRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS6209733QWRGTRQ1 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 TPS6209733QWRGTRQ1 meets industry standards.
7.What is the process for return or replacement of TPS6209733QWRGTRQ1?
All TPS6209733QWRGTRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS6209733QWRGTRQ1, 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 TPS6209733QWRGTRQ1 part is unused and in its original packaging.
Return procedure for TPS6209733QWRGTRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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