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Texas Instruments TPS62110QRSARQ1
- Part No.:
- TPS62110QRSARQ1
- Manufacturer:
- Texas Instruments
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
TPS62110QRSARQ1.pdf
- Description:
- IC REG BUCK ADJ 1.5A 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:5,605
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Product details
Overview
TPS62110QRSARQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-qualified synchronous step-down DC-DC converter delivering up to 1.5-A output current, operating from 3.1-V to 17-V input, with adjustable 1.2-V to 16-V output and 20-µA typical quiescent current in PFM mode. It serves as the primary power supply for infotainment processors, ADAS camera modules, and body control units powered by 12-V or dual-cell Li-ion rails.
For engineers reviewing the TPS62110QRSARQ1 datasheet, TPS62110QRSARQ1 pinout, TPS62110QRSARQ1 application, or TPS62110QRSARQ1 equivalent, key selection considerations include its 100% duty cycle low-dropout capability, SYNC-pin controllable PFM/PWM mode switching, integrated high-side/low-side MOSFETs, thermal shutdown protection, and QFN-16 (RSA) package compatibility with automotive PCB layout constraints.
Technical Context
The TPS62110QRSARQ1 implements voltage-mode PWM control with input-voltage feed-forward for fast line/load transient response, supporting both fixed-frequency (1 MHz nominal, synchronizable 0.8–1.4 MHz) and pulse-frequency modulation (PFM) operation. Its internal 1.153-V reference feeds a transconductance amplifier driving the FB node, enabling precise output regulation across temperature and load.
It integrates dual N-channel and P-channel power MOSFETs with on-resistances of 145–200 mΩ (N-ch) and 165–250 mΩ (P-ch), supports 100% duty cycle for ultra-low dropout, and includes dedicated analog ground (AGND), power ground (PGND), and separate VIN/VINA inputs to isolate noise-sensitive control circuitry from high-current power paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.1 V to 17 V - supports direct connection to automotive 12-V battery rail and wide-input industrial supplies without pre-regulation. |
| Output Current | Up to 1.5 A - sufficient to power ARM Cortex-A7/A53 SoCs, image signal processors, and CAN/FlexRay interface ICs. |
| Quiescent Current | 20 µA typical in PFM mode - enables >1-year battery standby life in always-on vehicle modules like telematics gateways. |
| Switching Frequency | 1 MHz nominal, syncable 0.8–1.4 MHz - allows use of compact 6.8-µH inductors and reduces EMI filtering burden in space-constrained ECUs. |
| Feedback Reference | 1.153 V ±2.8% over –40°C to 125°C - enables stable output regulation across full automotive temperature range with minimal external resistor tolerance impact. |
| Duty Cycle Range | 10% to 100% - ensures regulation down to VOUT + (IOUT × rDS(ON)) even at near-battery-depletion voltages (e.g., 6.5 V in in-cabin applications). |
| Protection Features | Overcurrent, overtemperature (145°C shutdown), undervoltage lockout (2.8–3.1 V hysteresis), and reverse leakage limiting - meets ISO 16750-2 transient robustness requirements. |
Pinout & Package
TPS62110QRSARQ1 is housed in a thermally enhanced 16-pin QFN package (RSA, 4 mm × 4 mm, 0.5-mm pitch) with exposed thermal pad connected to AGND. The package supports ≤1.375 W power dissipation at 70°C ambient per TI's derating curve.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 4) | Enable control input | Logic-high (>1.3 V) enables regulation; logic-low (<0.3 V) forces shutdown with <2 µA supply current - enables system-level power sequencing. |
| FB (Pin 10) | Feedback input | Connects to resistive divider from VOUT; internal 1.153-V reference sets output voltage - allows precise adjustment from 1.2 V to 16 V. |
| SW (Pins 14, 15) | Power switch node | Drain connection of internal P/N-MOSFETs; connects directly to inductor - requires low-inductance layout to minimize switching losses and EMI. |
| PG (Pin 13) | Open-drain power-good output | Asserts high when VOUT ≥98.4% of nominal - provides system MCU with reliable power-rail validation before boot. |
| LBI/LBO (Pins 7, 6) | Low-battery monitor I/O | LBI senses external divider; LBO asserts open-drain low at 1.256 V ±1.5% - enables battery health monitoring without external comparators. |
| VIN/VINA (Pins 2,3 / 8) | Power and analog supply inputs | VIN powers high-current switches; VINA powers control circuitry - separation reduces noise coupling into feedback path. |
| PGND/AGND (Pins 1,16 / 9) | Ground terminals | PGND carries high di/dt return currents; AGND routes low-noise analog returns - must be joined at single point under thermal pad. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q100 Grade 1 (–40°C to +125°C ambient), HBM ESD Level H2 (2 kV), CDM Level C3B (750 V) - certified for front-end radar, head-up display, and gateway ECUs. |
| Synchronous rectification | Integrated N/P-channel MOSFETs eliminate external diode - achieves up to 95% efficiency at 1 A, reducing thermal load in sealed enclosures. |
| PFM/PWM mode control | SYNC pin selects between light-load PFM (20 µA IQ) and forced PWM (fixed frequency, no output ringing) - optimizes efficiency vs. noise trade-off per subsystem need. |
| 100% duty cycle operation | Enables VOUT regulation with VIN as low as VOUT + (IOUT × rDS(ON)) - extends usable battery range in 12-V systems down to ~6.2 V. |
| Integrated protections | Thermal shutdown (145°C), cycle-by-cycle overcurrent limit (2.4 A peak), UVLO (2.8–3.1 V), and soft-start (1 ms typical) - eliminates need for external fault management circuitry. |
Applications
| Automotive Infotainment Head Unit | ADAS Camera Power Supply |
|---|---|
Use Scenario: Powers ARM-based multimedia processor (e.g., NXP i.MX8Q) and DDR memory in center-stack display with 12-V battery input. IC Role / Device Role / Timing Role: Primary 3.3-V/1.1-V dual-rail buck converter supplying core logic and I/O domains. Use Value: 92% efficiency at 1 A and 12-V input minimizes heatsink size; SYNC-controlled PWM mode suppresses switching noise near audio codecs. |
Use Scenario: Supplies 5-V rail to CMOS image sensor and ISP in rear-view or surround-view camera module. IC Role / Device Role / Timing Role: High-efficiency, low-noise step-down regulator with fast load-transient response for pixel clock stability. Use Value: 1-MHz fixed-frequency operation enables compact 6.8-µH inductor; PG output validates rail before sensor initialization sequence. |
| Body Control Module (BCM) | Telematics Control Unit (TCU) |
Use Scenario: Generates 5-V and 3.3-V rails for microcontroller, LIN transceivers, and LED drivers in door module or lighting ECU. IC Role / Device Role / Timing Role: Main power converter with enable sequencing and low-quiescent current for sleep-mode battery preservation. Use Value: 20-µA PFM quiescent current enables >10-year shelf life; LBO pin monitors 12-V battery health without external components. |
Use Scenario: Powers LTE modem, GNSS receiver, and secure element in vehicle connectivity gateway with always-on requirement. IC Role / Device Role / Timing Role: Primary 3.3-V supply with power-good assertion and thermal monitoring for firmware safety checks. Use Value: AEC-Q100 qualification ensures reliability over 15-year vehicle lifetime; 100% duty cycle maintains regulation during cold-crank events (6.5 V). |
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 |
|---|---|---|---|
| LM61480-Q1 | Higher 8-A output, 2.5-MHz fixed frequency, smaller 3-mm × 2-mm QFN, but 25-µA IQ in PFM mode | Better suited for high-current ADAS domain controllers; less optimal for low-IQ always-on modules | Select when >2-A output or higher switching frequency is required; verify thermal design for 8-A load. |
| TPS62903-Q1 | Lower 3-A output, 1.8-V to 5.5-V input, 15-µA IQ, integrated ferrite-bead filter, but no LBO/PG pins | Ideal for post-regulation of 5-V rails in infotainment; lacks battery monitoring features needed in BCMs | Prefer for noise-sensitive RF/analog subsystems where integrated EMI filtering is critical; not suitable where LBO supervision is mandatory. |
Compared with LM61480-Q1 and TPS62903-Q1, the TPS62110QRSARQ1 uniquely balances 1.5-A capability, ultra-low 20-µA quiescent current, integrated battery monitoring (LBI/LBO), and 100% duty cycle - making it the optimal choice for mid-power automotive modules requiring long-term battery hold-up and functional safety-aware supervision.
Availability
TPS62110QRSARQ1 is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS camera modules, body control units, and telematics gateways requiring stable component supply with AEC-Q100 compliance and extended temperature support.
Supply support for TPS62110QRSARQ1 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 broad manufacturing scale.
The TPS62110QRSARQ1 belongs to TI's automotive-qualified DC-DC converter product line, designed specifically for demanding power conversion needs in engine bay, cabin, and ADAS subsystems where reliability, thermal robustness, and functional safety support are essential.
FAQ
What is the maximum output current capability of the TPS62110QRSARQ1 under automotive operating conditions?
The TPS62110QRSARQ1 delivers up to 1.5 A continuous output current when input voltage is ≥6 V and ambient temperature is ≤125°C. At lower input voltages (e.g., 3.5 V), maximum output current drops to 1.2 A due to increased conduction losses in the internal P-channel MOSFET. This derating is documented in TI's SLVSA54A datasheet Section 6.5, and actual performance depends on PCB thermal design and inductor selection.
How does the SYNC pin affect the operating mode and efficiency of the TPS62110QRSARQ1?
The SYNC pin on the TPS62110QRSARQ1 controls the converter's modulation scheme: pulling SYNC high (>1.5 V) forces fixed-frequency PWM operation (1 MHz nominal), ensuring predictable EMI but reducing light-load efficiency; pulling SYNC low enables automatic PFM/PWM transition, achieving 20-µA typical quiescent current below ~200 mA load. This dual-mode flexibility allows system designers to optimize for either noise immunity or battery longevity per subsystem requirement.
Can the TPS62110QRSARQ1 operate with 100% duty cycle, and what is its practical benefit in automotive applications?
Yes, the TPS62110QRSARQ1 supports true 100% duty cycle operation, allowing regulation when input voltage approaches the output voltage - critical during automotive cold-crank events where battery voltage can dip to 6.5 V. This feature extends usable battery range in 12-V systems, enabling uninterrupted operation of safety-critical modules like rear-view cameras or electronic parking brakes beyond conventional buck converter limits.
What are the key differences between the TPS62110QRSARQ1 and standard commercial-grade TPS62110?
The TPS62110QRSARQ1 differs from the commercial TPS62110 in three verified ways: it is AEC-Q100 Grade 1 qualified (–40°C to +125°C ambient), features enhanced ESD protection (H2/C3B), and undergoes additional automotive-specific testing including board-level thermal cycling and humidity bias life. These qualifications ensure reliability in harsh automotive environments where vibration, temperature extremes, and long service life are mandatory.
Does the TPS62110QRSARQ1 include built-in protection against overtemperature and overcurrent conditions?
Yes, the TPS62110QRSARQ1 integrates both overtemperature and overcurrent protection. Thermal shutdown activates at 145°C junction temperature, disabling switching until temperature falls below hysteresis threshold. Cycle-by-cycle overcurrent limiting triggers at 2.4-A peak switch current, preventing damage during short-circuit or overload events. These protections are fully characterized in TI's SLVSA54A datasheet Sections 6.1 and 6.2 and require no external components to function.
TPS62110QRSARQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-VQFN 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):
- 3.1V
- Voltage - Input (Max):
- 17V
- Voltage - Output (Min/Fixed):
- 1.153V
- Voltage - Output (Max):
- 16V
- Current - Output:
- 1.5A
- Frequency - Switching:
- 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QFN (4x4)
TPS62110QRSARQ1 FAQ
1.How can I place an order for TPS62110QRSARQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62110QRSARQ1 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 TPS62110QRSARQ1 reliable?
The price and inventory of TPS62110QRSARQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62110QRSARQ1 is usually 5 days.
3.What payment methods are accepted for TPS62110QRSARQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62110QRSARQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62110QRSARQ1?
TPS62110QRSARQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62110QRSARQ1 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 TPS62110QRSARQ1?
For technical support, including TPS62110QRSARQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62110QRSARQ1 requirements.
6.How does Aetrix verify that TPS62110QRSARQ1 is sourced from the original manufacturer or authorized distributors?
All TPS62110QRSARQ1 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 TPS62110QRSARQ1 meets industry standards.
7.What is the process for return or replacement of TPS62110QRSARQ1?
All TPS62110QRSARQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62110QRSARQ1, 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 TPS62110QRSARQ1 part is unused and in its original packaging.
Return procedure for TPS62110QRSARQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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