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Texas Instruments TPS62162QDSGTQ1
- Part No.:
- TPS62162QDSGTQ1
- Manufacturer:
- Texas Instruments
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
TPS62162QDSGTQ1.pdf
- Description:
- IC REG BUCK 3.3V 1A 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:611
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Product details
Overview
TPS62162QDSGTQ1 from Texas Instruments is an automotive-grade synchronous step-down DC-DC converter delivering a fixed 3.3 V output at up to 1 A, operating from 3 V to 17 V input, featuring DCS-Control™ topology, power-good (PG) output, and 100% duty-cycle capability for battery-critical applications such as ADAS camera power rails.
For engineers reviewing the TPS62162QDSGTQ1 datasheet, TPS62162QDSGTQ1 pinout, TPS62162QDSGTQ1 application, or TPS62162QDSGTQ1 equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification (–40°C to 125°C), 2.25 MHz switching frequency, seamless PWM-to-Power Save Mode transition, and WSON-8 package thermal performance with RθJB = 35.5°C/W.
Technical Context
The TPS62162QDSGTQ1 implements DCS-Control™-a hybrid regulation architecture combining voltage-mode feedback with direct output-voltage sensing via the VOS pin and fast comparator-based transient response. It maintains constant 2.25 MHz nominal switching frequency 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 signaling with 92–98% rising threshold. The fixed 3.3 V output eliminates external feedback resistors, simplifying layout versus adjustable variants like TPS62160-Q1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3 V to 17 V - supports Li-ion batteries and 12-V automotive rails without pre-regulation |
| Output Voltage | Fixed 3.3 V - eliminates FB resistor network, improves thermal reliability vs. adjustable versions |
| Max Output Current | 1 A continuous - sufficient for SoC core logic, image sensors, and CAN transceivers |
| Switching Frequency | Typ. 2.25 MHz - enables use of compact 2.2 µH inductors and low-ESR ceramic capacitors |
| Quiescent Current | 17 µA - sustains >90% efficiency down to ~1 mA load in Power Save Mode |
| Thermal Resistance | RθJB = 35.5°C/W - enables 1 A operation with minimal board copper area in WSON-8 package |
| Power-Good Threshold | 92–98% of 3.3 V (3.04–3.23 V) - provides robust rail sequencing margin for downstream logic |
Pinout & Package
The TPS62162QDSGTQ1 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 directly to input capacitor ground |
| VIN (Pin 2) | Input Supply | Primary power input (3–17 V); requires local 10 µF ceramic decoupling per datasheet layout guidelines |
| EN (Pin 3) | Enable Control | Active-high logic input; internal 400 kΩ pulldown ensures safe default-off state if left floating |
| AGND (Pin 4) | Analog Ground | Reference for feedback and control circuitry; tied to exposed thermal pad and system AGND plane |
| FB (Pin 5) | Feedback Input | Internally pulled to AGND for fixed 3.3 V operation; recommended to connect externally to AGND for improved thermal resistance |
| VOS (Pin 6) | Voltage Sense | Direct output voltage sensing node for DCS-Control™ loop; critical for fast transient response and accuracy |
| SW (Pin 7) | Switch Node | Connection point for external inductor; carries high di/dt switching current; requires tight layout to minimize EMI |
| PG (Pin 8) | Power-Good Output | Open-drain status signal requiring external pullup; asserts high when VOUT ≥ 3.04 V, high-impedance during shutdown/UVLO |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ Topology | Combines fast comparator-based transient response with voltage-mode stability-enables <10 µs recovery from 50% load step without external compensation |
| AEC-Q100 Grade 1 | Qualified for –40°C to +125°C junction temperature-validates reliability in engine bay and ADAS sensor modules |
| Seamless Power Save Mode | Automatic transition between PWM and PSM preserves ±1% output regulation while maintaining >85% efficiency at 100 µA load |
| 100% Duty-Cycle Operation | Enables regulation down to VIN ≈ VOUT + (IOUT × RDS(ON))-extends runtime in single-cell Li-ion systems dropping below 3.6 V |
| Integrated Protection | Includes UVLO (2.7 V), thermal shutdown (160°C), and hiccup-mode short-circuit response-reduces need for external fault management circuitry |
Applications
| ADAS Camera Module | Infotainment Telematics |
|---|---|
Use Scenario: Powers 5-MP CMOS image sensor and ISP in rear-view or surround-view camera units mounted in vehicle exterior zones. IC Role / Device Role / Timing Role: Primary 3.3 V power supply for sensor interface, MIPI CSI-2 serializer, and flash memory I/O. Use Value: DCS-Control™ ensures <50 mV output deviation during LED flash pulses; 2.25 MHz switching avoids interference with image sensor sampling clocks. | Use Scenario: Supplies 3.3 V rail to LTE/5G modem, GPS receiver, and audio codec in head-unit or telematics control unit (TCU). IC Role / Device Role / Timing Role: Secondary regulated rail derived from 12-V battery; sequenced after main SoC core voltage via PG signal. Use Value: 17 µA quiescent current minimizes battery drain during parked-state GNSS tracking; AEC-Q100 qualification ensures 15-year field life. |
| Body Control Gateway | Powertrain Sensor Interface |
Use Scenario: Provides stable 3.3 V for LIN transceivers, door module MCUs, and ambient light sensors across wide temperature swings. IC Role / Device Role / Timing Role: Centralized low-noise power source for mixed-signal peripherals in distributed body electronics. Use Value: RθJB = 35.5°C/W allows full 1 A output without heatsink on 2-layer PCB; PG output enables firmware-controlled power-up sequence. | Use Scenario: Powers crankshaft/camshaft position sensors and knock detection amplifiers in engine control modules (ECM). IC Role / Device Role / Timing Role: Isolated 3.3 V supply referenced to chassis ground, immune to high-voltage ignition noise. Use Value: 100% duty-cycle mode sustains regulation during cranking events where battery dips to 6 V; thermal shutdown prevents latch-up under hood temperatures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62160QDSGTQ1 | Adjustable output (0.9–6 V) via external FB divider; same DCS-Control™, package, and specs otherwise | Requires two external resistors; used where multiple output voltages share same BOM or dynamic voltage scaling is needed | Select when flexibility in output voltage outweighs component count and thermal derating penalty of FB routing |
| LM61480QRTWRQ1 | Higher 3.5-A rating, 2.1-MHz fixed frequency, different control loop; larger 3-mm × 3-mm VQFN package | Targets higher-power domains (e.g., radar SoCs); lacks seamless PSM and 100% duty cycle | Choose only if >1 A output or lower thermal resistance (RθJA = 36.5°C/W) is mandatory; not drop-in compatible |
Compared with TPS62162QDSGTQ1, TPS62160QDSGTQ1 offers voltage programmability at the cost of added components and slightly reduced thermal performance, while LM61480QRTWRQ1 trades seamless light-load efficiency and compact size for higher current capacity and different loop dynamics-neither is pin-compatible.
Availability
TPS62162QDSGTQ1 is available at Aetrix Electronics and suitable for ADAS camera modules, infotainment telematics units, and body control gateways requiring stable component supply with automotive-grade traceability and long-term lifecycle support.
Supply support for TPS62162QDSGTQ1 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 power management ICs, with decades of automotive qualification expertise and broad AEC-Q100 portfolio coverage.
The TPS6216x-Q1 product line delivers high-efficiency, small-footprint DC-DC conversion for safety-critical automotive subsystems-including vision, radar, and domain controllers-where reliability, thermal performance, and functional safety documentation are mandatory.
FAQ
What is the output voltage setting of the TPS62162QDSGTQ1?
The TPS62162QDSGTQ1 is factory-programmed to deliver a fixed 3.3 V output. Unlike the adjustable TPS62160-Q1 variant, it does not require external feedback resistors-FB is internally connected to AGND. This configuration improves thermal resistance and reduces component count in space-constrained automotive modules.
Does the TPS62162QDSGTQ1 support power sequencing with other rails?
Yes, the TPS62162QDSGTQ1 supports precise power sequencing via its EN (enable) and PG (power-good) pins. EN accepts standard logic-level signals for controlled startup timing, while the open-drain PG output-requiring an external pullup-asserts high once VOUT reaches 92% of 3.3 V (≥3.04 V), enabling coordination with downstream processors or FPGAs.
How does the TPS62162QDSGTQ1 handle low-input-voltage conditions during cold-cranking?
The TPS62162QDSGTQ1 features undervoltage lockout (UVLO) with a 2.7 V threshold and 180 mV hysteresis. During cold-cranking, it remains operational down to ~2.52 V input and resumes regulation seamlessly once VIN exceeds 2.7 V. Its 100% duty-cycle mode further extends functionality when VIN approaches 3.3 V, sustaining output until VIN drops below ~3.45 V at full load.
What thermal performance can be expected from the TPS62162QDSGTQ1 in a typical 2-layer PCB layout?
In a standard 2-layer board with 1 oz copper and the exposed thermal pad soldered to a 200 mm² AGND pour, the TPS62162QDSGTQ1 achieves RθJB = 35.5°C/W. At 1 A output and 12 V input, junction temperature rise is ~35°C above board temperature-well within the –40°C to 125°C operating range even at 85°C ambient, assuming no additional airflow.
Is the TPS62162QDSGTQ1 pin-compatible with other devices in the TPS6216x-Q1 family?
The TPS62162QDSGTQ1 shares identical pinout, package (WSON-8 DSG), and footprint with TPS62160QDSGTQ1 and TPS62161QDSGTQ1. However, functional differences exist: TPS62160-Q1 is adjustable, TPS62161-Q1 is 1.8 V fixed, and TPS62162-Q1 is 3.3 V fixed. Swapping requires verifying FB connection and output capacitor stability per each variant's datasheet.
TPS62162QDSGTQ1 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)
TPS62162QDSGTQ1 FAQ
1.How can I place an order for TPS62162QDSGTQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62162QDSGTQ1 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 TPS62162QDSGTQ1 reliable?
The price and inventory of TPS62162QDSGTQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62162QDSGTQ1 is usually 5 days.
3.What payment methods are accepted for TPS62162QDSGTQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62162QDSGTQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62162QDSGTQ1?
TPS62162QDSGTQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62162QDSGTQ1 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 TPS62162QDSGTQ1?
For technical support, including TPS62162QDSGTQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62162QDSGTQ1 requirements.
6.How does Aetrix verify that TPS62162QDSGTQ1 is sourced from the original manufacturer or authorized distributors?
All TPS62162QDSGTQ1 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 TPS62162QDSGTQ1 meets industry standards.
7.What is the process for return or replacement of TPS62162QDSGTQ1?
All TPS62162QDSGTQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62162QDSGTQ1, 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 TPS62162QDSGTQ1 part is unused and in its original packaging.
Return procedure for TPS62162QDSGTQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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