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Texas Instruments TPS62162QDSGRQ1
- Part No.:
- TPS62162QDSGRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
TPS62162QDSGRQ1.pdf
- Description:
- IC REG BUCK 3.3V 1A 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:4,282
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Product details
Overview
TPS62162QDSGRQ1 from Texas Instruments is an automotive-grade synchronous step-down DC-DC converter with fixed 3.3 V output, 1-A continuous current capability, 3 V to 17 V input range, DCS-Control™ topology, and integrated power-good (PG) signal. It delivers high efficiency across load conditions in ADAS camera and infotainment power rails.
For engineers reviewing the TPS62162QDSGRQ1 datasheet, TPS62162QDSGRQ1 pinout, TPS62162QDSGRQ1 application, or TPS62162QDSGRQ1 equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification (–40°C to 125°C), 2.25 MHz nominal switching frequency, seamless PWM-to-Power Save Mode transition, and WSON-8 package thermal performance.
Technical Context
The TPS62162QDSGRQ1 implements DCS-Control™ - a hybrid regulation architecture combining fast comparator-based transient response with voltage feedback loop stability. It maintains constant 2.25 MHz switching in PWM mode and linearly scales frequency downward in Power Save Mode for light-load efficiency.
Its functional safety-capable design includes undervoltage lockout (2.7 V threshold, 180 mV hysteresis), thermal shutdown (160°C, 20°C hysteresis), short-circuit protection, and open-drain PG output with 92–98% rising threshold. The fixed 3.3 V version eliminates external FB resistors and internally connects FB to AGND for optimized thermal resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3 V to 17 V - supports Li-ion battery and 12-V automotive rail operation without external pre-regulation. |
| Output Voltage | Fixed 3.3 V - eliminates external feedback divider, reduces BOM count, improves thermal reliability via internal FB-to-AGND connection. |
| Max Output Current | 1 A continuous - sustains full load at 125°C junction temperature with proper PCB thermal design (RθJB = 35.5°C/W). |
| Switching Frequency | Typ. 2.25 MHz - enables use of compact 2.2 µH inductors and low-ESR ceramic capacitors (e.g., 10 µF + 22 µF output filter). |
| Quiescent Current | 17 µA typical - maintains high light-load efficiency in always-on vehicle subsystems such as telematics wake-up circuits. |
| Power-Good Threshold | Rising: 92–98% of VOUT - provides precise rail sequencing control for multi-rail systems like body control modules. |
| Thermal Shutdown | 160°C with 20°C hysteresis - protects against sustained overload or poor heatsinking while enabling automatic recovery after cooldown. |
Pinout & Package
TPS62162QDSGRQ1 is housed in a thermally enhanced 2.0 mm × 2.0 mm WSON-8 package (DSG) with exposed thermal pad soldered to AGND for optimal power dissipation and mechanical reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PGND (Pin 1) | Power Ground | Low-impedance return path for high-current switch node; must be connected to local ground plane under IC. |
| VIN (Pin 2) | Input Supply | Primary input rail (3–17 V); requires local 10 µF ceramic decoupling capacitor placed adjacent to pin. |
| EN (Pin 3) | Enable Input | Active-high logic control (VEN_H ≥ 0.9 V); internal 400 kΩ pulldown ensures safe shutdown if left floating. |
| AGND (Pin 4) | Analog Ground | Reference for FB/VOS/PG; must be tied to PGND at single point near IC; thermal pad also connects here. |
| FB (Pin 5) | Feedback Sense | Internally connected to AGND in TPS62162-Q1; leave unconnected or tie to AGND for improved thermal performance. |
| VOS (Pin 6) | Voltage Sense | Direct output voltage sensing point for control loop; connects to output capacitor anode for accurate regulation. |
| SW (Pin 7) | Switch Node | Drives external 2.2 µH inductor; high dv/dt node requiring tight layout, minimal trace length, and guard ring. |
| PG (Pin 8) | Power-Good Output | Open-drain status signal; requires external pullup (to ≤7 V); sinks 2 mA when active; high-impedance during shutdown/UVLO. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ Topology | Combines fast comparator-based transient response with stable voltage-loop regulation - achieves <10 µs load-step recovery and ±3% output accuracy in PWM mode. |
| AEC-Q100 Grade 1 Qualification | Validated for –40°C to +125°C junction operation, HBM ±2 kV, CDM ±500 V - meets automotive electronics reliability requirements for body and infotainment systems. |
| Seamless Power Save Mode | Automatically transitions from 2.25 MHz PWM to variable-frequency PSM below ~200 mA load - maintains >85% efficiency down to 1 mA output current. |
| 100% Duty-Cycle Operation | Enables regulation when VIN approaches VOUT (e.g., 3.6 V → 3.3 V) - extends battery runtime in low-voltage brownout conditions without dropout. |
| Integrated Protection Functions | Includes UVLO (2.7 V), thermal shutdown (160°C), overcurrent limiting (1.45–2.45 A), and short-circuit foldback - eliminates need for external fault management circuitry. |
Applications
| ADAS Camera Power Supply | Infotainment Telematics Rail |
|---|---|
Use Scenario: Powers image sensor, ISP, and MIPI interface in rear-view or surround-view camera modules. IC Role / Device Role / Timing Role: Primary 3.3 V buck regulator delivering clean, low-noise power with fast transient response to handle burst-mode sensor readouts. Use Value: DCS-Control™ ensures <15 mV output deviation during 500 mA load steps; 2.25 MHz switching avoids interference with video clock harmonics. | Use Scenario: Supplies 3.3 V to cellular modem, GPS receiver, and audio codec in head-unit telematics systems. IC Role / Device Role / Timing Role: Always-on power rail with ultra-low quiescent current and precise power-good signaling for system boot sequencing. Use Value: 17 µA IQ enables >1-year battery backup in disconnected state; PG output coordinates safe startup of modem and MCU subsystems. |
| Body Control Module (BCM) | Powertrain Gateway Interface |
Use Scenario: Provides regulated 3.3 V for microcontroller, CAN transceiver, and LIN interface in door module or lighting controller. IC Role / Device Role / Timing Role: Robust, AEC-Q100-compliant DC-DC stage supporting wide-input automotive battery variations (cold-crank to load-dump). Use Value: 3–17 V input range handles 4.5 V cold-crank and 16 V load-dump transients; thermal shutdown prevents latch-up during prolonged overtemperature events. | Use Scenario: Powers communication interface between engine ECU and vehicle network gateway in hybrid powertrain architectures. IC Role / Device Role / Timing Role: Safety-relevant power supply with functional safety documentation support and deterministic fault response. Use Value: Functional safety-capable design enables ASIL-B decomposition; PG signal validates rail integrity before CAN message transmission. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62160QDSGRQ1 | Adjustable output (0.9–6 V) via external resistor divider; FB pin active; same DCS-Control™, package, and specs otherwise. | Used where multiple output voltages are needed on same PCB or future voltage flexibility is required. | Select TPS62160QDSGRQ1 when adjustable VOUT or design reuse across variants is prioritized over BOM simplification. |
| TPS62172QDSGRQ1 | Higher 2.25 MHz fixed frequency, lower 12 µA IQ, but only 0.6-A output; pin-compatible WSON-8 package. | Suitable for lower-current infotainment peripherals where size and IQ outweigh current needs. | Choose TPS62172QDSGRQ1 only if 0.6-A max load suffices and sub-15 µA quiescent current is critical. |
Compared with TPS62160QDSGRQ1, the fixed-output TPS62162QDSGRQ1 reduces component count and improves thermal reliability, while TPS62172QDSGRQ1 trades current capability for ultra-low IQ - making TPS62162QDSGRQ1 optimal for 1-A, 3.3 V automotive rails demanding robustness and simplicity.
Availability
TPS62162QDSGRQ1 is available at Aetrix Electronics and suitable for ADAS camera modules, infotainment telematics systems, and body control modules requiring stable component supply across automotive production lifecycles.
Supply support for TPS62162QDSGRQ1 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, embedded processing, and automotive electronics with decades of power management leadership.
The TPS6216x-Q1 product line delivers high-density, AEC-Q100-qualified DC-DC converters for automotive subsystems demanding high efficiency, small footprint, and functional safety readiness - especially in vision, connectivity, and control domains.
FAQ
What is the output voltage of the TPS62162QDSGRQ1?
The TPS62162QDSGRQ1 has a factory-programmed fixed output voltage of 3.3 V. Unlike the adjustable TPS62160QDSGRQ1, it does not require external feedback resistors. The FB pin is internally connected to AGND, and connecting it externally to AGND further improves thermal resistance per TI's recommendation.
Does the TPS62162QDSGRQ1 support power sequencing in multi-rail automotive systems?
Yes, the TPS62162QDSGRQ1 supports precise power sequencing via its enable (EN) and open-drain power-good (PG) pins. EN accepts standard logic-level signals for controlled startup, while PG asserts high-impedance during startup and pulls low (with external pullup) once VOUT reaches 92–98% of 3.3 V - enabling reliable coordination with other rails in BCM or gateway designs.
What package type and thermal characteristics does the TPS62162QDSGRQ1 use?
The TPS62162QDSGRQ1 uses a 2.0 mm × 2.0 mm WSON-8 (DSG) package with an exposed thermal pad. Its thermal metrics include RθJB = 35.5°C/W and RθJC(bot) = 8.4°C/W, requiring the thermal pad to be soldered to AGND for effective heat transfer. This construction supports 1-A operation up to 125°C junction temperature under proper PCB layout.
How does the DCS-Control™ topology in the TPS62162QDSGRQ1 improve transient response?
The DCS-Control™ topology in the TPS62162QDSGRQ1 combines a fast comparator monitoring VOS directly with a stable voltage feedback loop. This dual-path architecture achieves typical load-step response times under 10 µs and output voltage deviations less than 15 mV for 500 mA transients - critical for powering burst-mode image sensors in ADAS cameras without external compensation.
Is the TPS62162QDSGRQ1 qualified for functional safety applications?
Yes, the TPS62162QDSGRQ1 is functional safety-capable with documentation available to aid ISO 26262 system-level design. It includes diagnostic features such as power-good signaling, thermal shutdown with hysteresis, and undervoltage lockout - enabling its use in ASIL-B decomposed subsystems like telematics gateways and body domain controllers.
TPS62162QDSGRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- DCS-Control™
- Package/Case:
- 8-WFDFN 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):
- 3V
- Voltage - Input (Max):
- 17V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 1A
- Frequency - Switching:
- 2.25MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WSON (2x2)
TPS62162QDSGRQ1 FAQ
1.How can I place an order for TPS62162QDSGRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62162QDSGRQ1 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 TPS62162QDSGRQ1 reliable?
The price and inventory of TPS62162QDSGRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62162QDSGRQ1 is usually 5 days.
3.What payment methods are accepted for TPS62162QDSGRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62162QDSGRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62162QDSGRQ1?
TPS62162QDSGRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62162QDSGRQ1 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 TPS62162QDSGRQ1?
For technical support, including TPS62162QDSGRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62162QDSGRQ1 requirements.
6.How does Aetrix verify that TPS62162QDSGRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS62162QDSGRQ1 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 TPS62162QDSGRQ1 meets industry standards.
7.What is the process for return or replacement of TPS62162QDSGRQ1?
All TPS62162QDSGRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62162QDSGRQ1, 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 TPS62162QDSGRQ1 part is unused and in its original packaging.
Return procedure for TPS62162QDSGRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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