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Texas Instruments TPS62090QRGTRQ1
- Part No.:
- TPS62090QRGTRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
TPS62090QRGTRQ1.pdf
- Description:
- IC REG BUCK ADJ 3A 16VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:11,465
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Product details
Overview
TPS62090QRGTRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive synchronous step-down DC/DC converter delivering up to 3 A output current, operating from 2.5 V to 6 V input, with adjustable 0.8 V to VIN output voltage, DCS-Control™ topology, and 2.8 MHz / 1.4 MHz selectable switching frequency - used in ADAS camera modules and infotainment power rails.
For engineers reviewing the TPS62090QRGTRQ1 datasheet, TPS62090QRGTRQ1 pinout, TPS62090QRGTRQ1 application, or TPS62090QRGTRQ1 equivalent, key selection criteria include its 20 µA quiescent current in power save mode, hiccup short-circuit protection, output discharge function, 100% duty cycle capability, and QFN-16 (3 mm × 3 mm) package with wettable flanks compatibility.
Technical Context
The TPS62090QRGTRQ1 implements DCS-Control™ - a hybrid regulation architecture combining hysteretic response speed with voltage-mode stability - enabling seamless PWM-to-PFM transition without output voltage disturbance. It integrates dual MOSFET power switches with 50 mΩ high-side and 40 mΩ low-side RDS(on), internal charge pump (CP/CN), and precision 0.8 V feedback reference.
Functional modes include adjustable soft-start (via SS pin constant-current charging at 7.5 µA), voltage tracking (SS pin driven externally), and thermal shutdown at 150°C with 20°C hysteresis. The device supports output voltage accuracy of ±1.4% in PWM mode and ±2.5% in PFM mode (with 22 µF COUT), and achieves 95% peak efficiency at 3 A with 1.8 V output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5 V to 6 V - supports wide automotive battery transients including cold-crank (≥2.5 V) and load-dump (≤6 V). |
| Output Current | Up to 3 A continuous - sufficient for powering SoCs, FPGAs, and multi-core MCUs in automotive ECUs. |
| Switching Frequency | 2.8 MHz (FREQ = GND) or 1.4 MHz (FREQ = VIN) - enables compact 0.47 µH inductor use at high frequency or higher efficiency at low frequency. |
| Quiescent Current | 20 µA in power save mode - extends battery runtime in always-on vehicle systems like telematics and gateway modules. |
| Feedback Reference | 0.8 V ±1.4% - sets precise output voltage via external resistor divider; enables 1.8 V, 3.3 V, or custom rail generation. |
| Protection Features | Hiccup short-circuit, thermal shutdown (150°C), UVLO (2.2 V threshold), and output discharge (200 Ω) - ensures robust operation in harsh automotive environments. |
| Package | 16-pin QFN (RGT), 3.0 mm × 3.0 mm, exposed thermal pad soldered to AGND - provides low thermal resistance (RθJB = 19 °C/W) and AEC-Q100-compliant reliability. |
Pinout & Package
TPS62090QRGTRQ1 uses a 3 mm × 3 mm, 16-pin QFN package (RGT) with exposed thermal pad connected to AGND. The package supports reflow soldering and wettable flanks for automated optical inspection (AOI).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW (1,2) | Power switch node | Connects to external inductor; carries high-frequency AC current; requires low-inductance layout to minimize EMI. |
| FREQ (3) | Frequency select input | Logic-level control: GND = 2.8 MHz, VIN = 1.4 MHz; internal 400 kΩ pulldown enables default 2.8 MHz operation if left floating. |
| PG (4) | Open-drain power good output | Signals regulation status (high-Z when VOUT ≥95% nominal); requires external pullup ≤VIN; sinks 1 mA max. |
| FB (5) | Feedback input | Monitors output via resistor divider; internal 0.8 V reference enables precise adjustable output voltage setting. |
| AGND (6) | Analog ground | Reference for FB, SS, and internal error amplifier; must be separated from PGND and tied to thermal pad. |
| CP / CN (7,8) | Charge pump flying capacitor terminals | Require 10 nF ceramic capacitor between pins; enable efficient gate drive for internal MOSFETs without external supply. |
| EN (13) | Enable input | Active-high logic; internal 400 kΩ pulldown allows direct MCU GPIO control; shutdown current <5 µA. |
| VOS (16) | Output voltage sense | Direct connection to VOUT; enables accurate remote sensing and activates output discharge during disable. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ topology | Enables <10 µs load transient response with <1% undershoot/overshoot while maintaining stable PFM/PWM transition - critical for processor core rail stability. |
| Adjustable soft-start | SS pin accepts external capacitor (e.g., 100 nF → ~13 ms start-up); prevents inrush current into large output caps in ADAS camera power supplies. |
| Output voltage tracking | SS pin accepts external ramp signal to synchronize TPS62090QRGTRQ1 output with other rails - enables controlled sequencing in multi-rail infotainment SoC designs. |
| 100% duty cycle operation | Extends usable battery range down to VOUT + IOUT×(RDS(on)+RL) - delivers full 3.3 V output even at 3.6 V battery voltage in start-stop systems. |
| 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
| ADAS Camera Power Supply | Infotainment Processor Core Rail |
|---|---|
|
Use Scenario: Powers image sensor and ISP in rear-view or surround-view camera modules requiring clean, low-noise 1.8 V at 2 A with fast transient response. IC Role / Device Role / Timing Role: Primary synchronous buck regulator with DCS-Control™ ensuring sub-10 µs load step recovery and <15 mV ripple under dynamic imaging loads. Use Value: Eliminates need for post-regulation LDOs by delivering ±1.4% output accuracy and 95% efficiency - reducing board area and thermal load in sealed camera housings. |
Use Scenario: Supplies configurable core voltage (0.8–1.2 V) to automotive-grade application processors in head-unit systems with dynamic DVFS scaling. IC Role / Device Role / Timing Role: Adjustable-output buck converter supporting voltage tracking via SS pin to coordinate with DDR memory and GPU rails during boot and sleep transitions. Use Value: Enables precise power sequencing and 20 µA quiescent current in standby - extending battery life in parked vehicle monitoring modes. |
| Telematics Gateway Module | Automotive Body Control Unit (BCU) |
|
Use Scenario: Generates 3.3 V system rail for LTE modem, GNSS receiver, and CAN transceivers in cellular-connected vehicle gateways. IC Role / Device Role / Timing Role: High-efficiency step-down regulator with hiccup protection and output discharge - maintains reliable operation during battery voltage dips and hot-swap events. Use Value: Withstands 2.5–6 V input range and delivers 3 A peak current during LTE transmission bursts - avoiding brownouts in 12 V automotive electrical systems. |
Use Scenario: Provides 5 V or 3.3 V auxiliary power to microcontrollers, LIN transceivers, and LED drivers in door modules and lighting controllers. IC Role / Device Role / Timing Role: Compact, AEC-Q100-qualified buck converter with 100% duty cycle support - sustains regulated output during engine cranking (down to 6 V battery). Use Value: 3 mm × 3 mm QFN footprint and integrated power switches reduce BOM count by 4+ components versus discrete solutions - lowering assembly cost in high-volume BCU production. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62813-Q1 | Higher 6 V input rating, 2 mm × 3 mm QFN with wettable flanks, 4 A output, but fixed 1.8 V/3.3 V options only - no adjustable VOUT. | Better suited for space-constrained new designs needing fixed outputs; lacks VOUT adjustability and VOS pin for remote sensing. | Select TPS62813-Q1 when board area is critical and output voltage is fixed; retain TPS62090QRGTRQ1 for designs requiring programmable VOUT or output discharge control. |
| LM61480-Q1 | 42 V input, 8 A output, spread-spectrum switching, but larger HTSSOP-16 package and 25 µA IQ - optimized for high-voltage, high-current applications. | Targets 24 V/48 V commercial vehicle systems; not suitable for low-input, high-density passenger car applications. | Choose LM61480-Q1 for 12–48 V battery architectures; TPS62090QRGTRQ1 remains optimal for 2.5–6 V, 3 A, space-sensitive automotive modules. |
Compared with TPS62813-Q1 and LM61480-Q1, the TPS62090QRGTRQ1 uniquely balances ultra-compact size, adjustable output, ultra-low IQ, and automotive qualification - making it the preferred choice for 3 A, low-input-voltage, high-density power rails where flexibility and efficiency are jointly critical.
Availability
TPS62090QRGTRQ1 is available at Aetrix Electronics and suitable for automotive ADAS, infotainment, and telematics applications requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant traceability.
Supply support for TPS62090QRGTRQ1 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 ICs, with over 50 years of innovation in power management and automotive electronics.
The TPS62090QRGTRQ1 belongs to TI's automotive-qualified DC/DC converter portfolio, designed specifically for high-efficiency, small-footprint power delivery in safety-critical vehicle subsystems operating from 2.5 V to 6 V inputs.
FAQ
What is the maximum output current capability of the TPS62090QRGTRQ1?
The TPS62090QRGTRQ1 delivers up to 3 A continuous output current under recommended operating conditions (TJ ≤ 125°C, proper PCB thermal design). Its high-side and low-side MOSFETs feature 50 mΩ and 40 mΩ RDS(on), respectively, enabling this current level with minimal conduction loss and 95% peak efficiency at 1.8 V/3 A output.
Does the TPS62090QRGTRQ1 support output voltage adjustment, and how is it configured?
Yes, the TPS62090QRGTRQ1 supports adjustable output voltage from 0.8 V to VIN using an external resistor divider on the FB pin. The internal 0.8 V reference sets VOUT = 0.8 V × (1 + R1/R2), enabling precise generation of common rails like 1.2 V, 1.8 V, or 3.3 V - confirmed in Section 5.5 of the TPS62090QRGTRQ1 datasheet.
How does the TPS62090QRGTRQ1 achieve low quiescent current, and what is its value in power save mode?
The TPS62090QRGTRQ1 achieves 20 µA typical quiescent current in power save mode (PFM) by dynamically reducing switching frequency and disabling non-essential circuitry while maintaining regulation. This value is measured at light load (e.g., 1 mA) with VIN = 3.6 V and TJ = 25°C, as specified in Section 5.5 Electrical Characteristics of the TPS62090QRGTRQ1 datasheet.
What protection features are integrated into the TPS62090QRGTRQ1?
The TPS62090QRGTRQ1 integrates hiccup-mode short-circuit protection, thermal shutdown (150°C trip, 20°C hysteresis), undervoltage lockout (2.2 V threshold), and output discharge (200 Ω via VOS pin). These features ensure robust operation in automotive environments subject to load dumps, cranking, and fault conditions - all verified per AEC-Q100 Grade 1 requirements.
Is the TPS62090QRGTRQ1 pin-compatible with other devices in the same family, such as the TPS62091 or TPS62092?
No, the TPS62090QRGTRQ1 is not pin-compatible with TPS62091 or TPS62092. While sharing the same RGT QFN-16 package, pin functions differ - notably TPS62091 lacks the VOS pin and uses different FB configuration, and TPS62092 omits the FREQ pin. Direct replacement requires schematic and layout revision; refer to individual datasheets for exact pin mappings of each TPS62090QRGTRQ1 variant.
TPS62090QRGTRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- DCS-Control™
- Package/Case:
- 16-VFQFN Exposed Pad
- 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):
- 2.5V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 6V
- Current - Output:
- 3A
- Frequency - Switching:
- 2.8MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-VQFN (3x3)
TPS62090QRGTRQ1 FAQ
1.How can I place an order for TPS62090QRGTRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62090QRGTRQ1 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 TPS62090QRGTRQ1 reliable?
The price and inventory of TPS62090QRGTRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62090QRGTRQ1 is usually 5 days.
3.What payment methods are accepted for TPS62090QRGTRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62090QRGTRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62090QRGTRQ1?
TPS62090QRGTRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62090QRGTRQ1 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 TPS62090QRGTRQ1?
For technical support, including TPS62090QRGTRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62090QRGTRQ1 requirements.
6.How does Aetrix verify that TPS62090QRGTRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS62090QRGTRQ1 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 TPS62090QRGTRQ1 meets industry standards.
7.What is the process for return or replacement of TPS62090QRGTRQ1?
All TPS62090QRGTRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62090QRGTRQ1, 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 TPS62090QRGTRQ1 part is unused and in its original packaging.
Return procedure for TPS62090QRGTRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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