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Texas Instruments TPS62065QDSGRQ1
- Part No.:
- TPS62065QDSGRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
TPS62065QDSGRQ1.pdf
- Description:
- IC REG BUCK ADJ 2A 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:4,543
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Product details
Overview
TPS62065QDSGRQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified, synchronous step-down DC/DC converter delivering up to 2-A output current with 3-MHz fixed-frequency PWM or power-save PFM operation. It operates from 2.9 V to 6 V input, achieves ±1.5% output voltage accuracy in PWM mode, and integrates output capacitor discharge, 100% duty-cycle low-dropout capability, and clock dithering for automotive ADAS and infotainment power rails.
For engineers reviewing the TPS62065QDSGRQ1 datasheet, TPS62065QDSGRQ1 pinout, TPS62065QDSGRQ1 application, or TPS62065QDSGRQ1 equivalent, key selection criteria include its 2 × 2 mm WSON-8 package, MODE pin-controlled PFM/PWM transition, 18-µA quiescent current, integrated 0.6-V reference, and functional safety documentation support for ISO 26262-compliant systems.
Technical Context
The TPS62065QDSGRQ1 implements a voltage-mode PWM controller with input-voltage feedforward for fast line/load regulation and supports automatic PFM entry at light loads when MODE is pulled low. Its dual MOSFET switch stage features typ. 120 mΩ high-side and 90 mΩ low-side RDS(on) at 3.6 V, enabling high efficiency across 0–2 A load range.
It integrates undervoltage lockout (1.78 V falling, 1.95 V rising), thermal shutdown (150°C), foldback short-circuit protection, soft-start (500 µs to 95% VOUT), and dynamic voltage positioning (1% above nominal in PFM) - all optimized for compact 1-µH inductor + 10-µF ceramic capacitor designs in space-constrained automotive modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.9 V to 6 V - supports direct regulation from 3.3-V or 5-V system rails without pre-regulation |
| Output Current | Up to 2 A - sufficient for powering SoCs, image sensors, and display controllers in ADAS cameras |
| Switching Frequency | 3 MHz (typical) - enables use of ultra-small 1-µH inductors and reduces EMI filter size |
| Quiescent Current | 18 µA in PFM mode - extends battery runtime in always-on vehicle subsystems |
| Output Accuracy | ±1.5% in PWM mode - ensures stable core voltage for microcontrollers and FPGAs |
| Efficiency | Up to 97% - minimizes thermal load in sealed automotive enclosures |
| Shutdown Current | 5 µA max - enables deep-sleep power states in telematics modules |
Pinout & Package
TPS62065QDSGRQ1 uses an 8-pin 2.0 mm × 2.0 mm × 0.75 mm WSON package (DSG) with exposed thermal pad soldered to PCB ground for thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 PGND | Power Ground (Output Stage) | Return path for high-current inductor current; must be low-impedance connection to thermal pad |
| 2 SW | Switch Node | Connection point between internal high-side/low-side MOSFETs and external inductor |
| 3 AGND | Analog Ground | Reference for feedback, oscillator, and control circuitry; separate from PGND to reduce noise coupling |
| 4 FB | Feedback Input | Senses output voltage via resistor divider; internal 0.6-V reference sets regulation point |
| 5 EN | Enable Input | Active-high logic control; pulling low disables converter and activates output discharge |
| 6 MODE/PG | Mode Selection (TPS62065QDSGRQ1) | Pulling high forces fixed-frequency PWM; pulling low enables automatic PFM/PWM transition |
| 7 AVIN | Analog Supply Input | Bias supply for control circuitry; must be connected to PVIN and decoupled with 10-µF capacitor |
| 8 PVIN | Power Supply Input | Main input rail connection for high-current switching stage; requires local 10-µF ceramic decoupling |
Key Features
| Feature | Design Value |
|---|---|
| Dynamic Voltage Positioning | Maintains output 1% above nominal in PFM mode to suppress load-step undershoot in camera ISPs |
| Output Capacitor Discharge | Internal 75–1450 Ω discharge path activated during shutdown prevents floating VOUT in hot-plug scenarios |
| 100% Duty-Cycle Operation | Enables regulation down to VIN ≈ VOUT + IOUT×(RDS(on)+RL) - maximizes battery utilization in 12-V automotive systems with buck-boost front-end |
| Clock Dithering | 6 ns typical frequency modulation spreads EMI energy across 2.6–3.4 MHz band - simplifies CISPR 25 Class 5 compliance |
| Functional Safety Support | Documentation available for FMEDA, failure modes, and diagnostic coverage analysis per ISO 26262 ASIL-B requirements |
Applications
| ADAS Camera Module | Automotive Infotainment Processor |
|---|---|
Use Scenario: Powering 1.8-V image signal processor and CMOS sensor in forward-facing collision avoidance camera. IC Role / Device Role / Timing Role: Primary 2-A buck regulator with fast transient response and low-noise PWM mode for pixel clock stability. Use Value: 3-MHz switching avoids interference with sensor readout timing; 18-µA quiescent current enables always-on wake-on-motion functionality. | Use Scenario: Generating 1.2-V core voltage for ARM-based infotainment SoC with dynamic DVFS scaling. IC Role / Device Role / Timing Role: High-efficiency synchronous buck converter supporting rapid load transients during GPU burst activity. Use Value: Voltage positioning and 97% peak efficiency minimize thermal throttling during navigation rendering. |
| Digital Cluster Display Backlight | Telematics Control Unit (TCU) |
Use Scenario: Supplying 3.3-V bias for LED driver ICs in TFT-LCD instrument cluster backlighting. IC Role / Device Role / Timing Role: Compact, low-profile DC/DC source with minimal board area footprint in constrained dashboard space. Use Value: 2 × 2 mm WSON package and 1-µH inductor enable <100 mm² total solution size; AEC-Q100 Grade 1 ensures reliability at 125°C junction temperature. | Use Scenario: Providing 1.8-V I/O rail for cellular modem and GNSS receiver in LTE/V2X telematics gateway. IC Role / Device Role / Timing Role: Low-noise, EMI-optimized regulator meeting automotive RF coexistence requirements. Use Value: Clock dithering and integrated output discharge simplify EMC testing and prevent bus contention during cold boot. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62067QDSGRQ1 | Includes open-drain PG output; no MODE pin - defaults to auto PFM/PWM | Required where power-rail sequencing or fault reporting is needed | Select when system-level monitoring of output regulation status is mandatory |
| TPS628502QWNRQ1 | 6-V input, SOT583 package, higher efficiency (98%), integrated compensation | Better suited for new designs targeting lower BOM cost and smaller footprint | Prefer for next-generation platforms requiring reduced solution size and improved light-load efficiency |
Compared with TPS62065QDSGRQ1, TPS62067QDSGRQ1 adds power-good signaling but removes MODE flexibility, while TPS628502QWNRQ1 offers higher integration and efficiency at the cost of different package and pinout - making it unsuitable as a drop-in replacement but valuable for greenfield designs.
Availability
TPS62065QDSGRQ1 is available at Aetrix Electronics and suitable for advanced driver assistance systems, automotive infotainment and cluster, and telematics control units requiring stable component supply across extended temperature and lifecycle demands.
Supply support for TPS62065QDSGRQ1 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 company specializing in analog and embedded processing technologies, with leadership in automotive-grade power management ICs.
The TPS6206x-Q1 product line delivers high-frequency, high-efficiency synchronous buck converters optimized for space-constrained, thermally demanding automotive applications including ADAS, infotainment, and body electronics.
FAQ
What is the maximum output current supported by the TPS62065QDSGRQ1?
The TPS62065QDSGRQ1 supports up to 2 A of continuous output current under recommended operating conditions (TJ ≤ 125°C, 2.9 V ≤ VIN ≤ 6 V). Peak current capability is limited by internal 2.3–3.3 A current limit with foldback protection during overload or short-circuit events. Derating is required above 85°C ambient due to thermal constraints in the 2 × 2 mm WSON package.
How does the MODE pin function on the TPS62065QDSGRQ1?
On the TPS62065QDSGRQ1, the MODE pin selects between two operational modes: pulling MODE low enables automatic PFM/PWM transition for highest light-load efficiency, while pulling MODE high forces fixed-frequency 3-MHz PWM operation to minimize output voltage ripple and simplify EMI filtering. This pin must be terminated - floating is not allowed - and its state can be changed dynamically during operation.
Does the TPS62065QDSGRQ1 provide power-good indication?
No, the TPS62065QDSGRQ1 does not include a power-good (PG) output. That function is implemented only on the TPS62067QDSGRQ1 and TPS62067AQDSGRQ1 variants. The TPS62065QDSGRQ1 uses the same pin (Pin 6) as MODE for mode selection, whereas TPS62067QDSGRQ1 repurposes it as an open-drain PG output with 5-µs internal delay and 93–98% regulation threshold.
What package type and dimensions does the TPS62065QDSGRQ1 use?
The TPS62065QDSGRQ1 is packaged in an 8-pin WSON (DSG) variant measuring 2.0 mm × 2.0 mm × 0.75 mm with an exposed thermal pad. This RoHS-compliant, lead-free package requires soldering the thermal pad to a PCB copper pour tied to PGND for optimal thermal performance and electrical stability.
Is the TPS62065QDSGRQ1 qualified for automotive applications?
Yes, the TPS62065QDSGRQ1 is AEC-Q100 qualified for Grade 1 operation (–40°C to +125°C junction temperature), with HBM ESD rating of ±2500 V and CDM rating of ±750 V (corner pins). It also supports functional safety development with documented failure modes, FIT rates, and diagnostic coverage data aligned with ISO 26262 ASIL-B requirements.
TPS62065QDSGRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-WFDFN 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):
- 2.9V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 6V
- Current - Output:
- 2A
- Frequency - Switching:
- 3MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WSON (2x2)
TPS62065QDSGRQ1 FAQ
1.How can I place an order for TPS62065QDSGRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62065QDSGRQ1 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 TPS62065QDSGRQ1 reliable?
The price and inventory of TPS62065QDSGRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62065QDSGRQ1 is usually 5 days.
3.What payment methods are accepted for TPS62065QDSGRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62065QDSGRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62065QDSGRQ1?
TPS62065QDSGRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62065QDSGRQ1 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 TPS62065QDSGRQ1?
For technical support, including TPS62065QDSGRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62065QDSGRQ1 requirements.
6.How does Aetrix verify that TPS62065QDSGRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS62065QDSGRQ1 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 TPS62065QDSGRQ1 meets industry standards.
7.What is the process for return or replacement of TPS62065QDSGRQ1?
All TPS62065QDSGRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62065QDSGRQ1, 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 TPS62065QDSGRQ1 part is unused and in its original packaging.
Return procedure for TPS62065QDSGRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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