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Texas Instruments TPS61170QDRVRQ1
- Part No.:
- TPS61170QDRVRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
TPS61170QDRVRQ1.pdf
- Description:
- IC REG BUCK BST ADJ 960MA 6WSON
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TPS61170QDRVRQ1 from Texas Instruments is an automotive-grade, monolithic high-voltage boost converter with integrated 1.2-A/40-V N-channel MOSFET, 1.2-MHz fixed-frequency PWM control, 3-V to 18-V input range, and programmable 1.229-V feedback reference. It delivers 12 V at 300 mA from a 5-V input in HEV/EV charger systems.
For engineers reviewing the TPS61170QDRVRQ1 datasheet, TPS61170QDRVRQ1 pinout, TPS61170QDRVRQ1 application, or TPS61170QDRVRQ1 equivalent, key selection considerations include its AEC-Q100 qualification, on-the-fly output voltage reprogramming via CTRL pin (PWM or EasyScale™), 6-pin 2-mm × 2-mm SON package with exposed thermal pad, and built-in soft start, cycle-by-cycle overcurrent protection, and thermal shutdown.
Technical Context
The TPS61170QDRVRQ1 employs current-mode PWM control with slope compensation to prevent subharmonic oscillation above 50% duty cycle. Its error amplifier (240–400 μmho transconductance, 6 MΩ output resistance) drives the COMP pin, requiring external RC compensation for loop stability and transient response optimization.
It supports three functional modes: default regulation (FB = 1.229 V), PWM-based reference scaling (duty-cycle proportional reduction), and 1-wire EasyScale™ programming (32-step FB voltage from 0 mV to 1.229 V). The CTRL pin serves as enable, PWM input, and digital interface - with internal 800-kΩ pulldown and 2.5-ms UVLO detection delay.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3 V to 18 V - supports multicell batteries and regulated 5-V/12-V rails without external pre-regulation. |
| Output Voltage Range | Up to 38 V - enables high-side LED drivers, sensor biasing, and HV auxiliary supplies in ADAS modules. |
| Switch Current Limit | 0.96 A to 1.44 A - cycle-by-cycle overcurrent protection ensures safe operation under short-circuit or overload. |
| Switching Frequency | 1.2 MHz (typical) - allows use of low-profile 10–22 μH inductors and small ceramic capacitors (≥1 μF input, ≥1 μF output). |
| Feedback Reference | 1.229 V (adjustable down to 0 V via CTRL) - enables precise output programming and dynamic reconfiguration without resistor network changes. |
| Quiescent Current | 2.3 mA - maintains efficiency in always-on automotive subsystems while supporting low-power sleep states. |
| Thermal Shutdown | 160°C threshold with 15°C hysteresis - protects against sustained overload or poor PCB thermal design in under-hood environments. |
Pinout & Package
TPS61170QDRVRQ1 uses a 6-pin 2-mm × 2-mm SON package with exposed thermal pad soldered to analog ground for thermal management. Pin functions are validated per TI SLVSAX2B Rev B (June 2020).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FB (Pin 1) | Feedback input | Connects to resistor divider midpoint; regulates output by comparing against 1.229-V internal reference. |
| COMP (Pin 2) | Error amplifier output | Drives external RC compensation network to stabilize control loop and optimize transient response. |
| GND (Pin 3) | Power and signal ground | Reference node for all internal circuits; must be low-impedance connection to thermal pad and system ground plane. |
| SW (Pin 4) | Switching node | Connects to inductor switch node and Schottky diode anode; carries high di/dt switching current. |
| CTRL (Pin 5) | Multi-function control | Enables device, accepts PWM for reference scaling, or hosts EasyScale™ 1-wire programming (72h address). |
| VIN (Pin 6) | Input supply | Accepts 3–18 V; powers internal circuitry and high-side gate driver; requires local 4.7-μF ceramic decoupling. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Rated for –40°C to +125°C ambient operation - meets automotive reliability and lifetime requirements for front-end electronics. |
| Integrated 1.2-A/40-V power MOSFET | Eliminates external high-voltage switch - reduces BOM count, layout area, and parasitic losses in compact 2-mm × 2-mm footprint. |
| On-the-fly output reprogramming | CTRL pin supports real-time FB voltage adjustment via PWM or EasyScale™ - enables adaptive output tuning without hardware change. |
| Built-in soft start | 32-step FB reference ramp (213 μs/step) limits inrush current - prevents input rail sag and avoids false triggering of system brownout detectors. |
| Skip-cycle light-load mode | Reduces switching frequency at light loads - improves efficiency below ~10 mA while maintaining regulation and low output ripple. |
Applications
| Automotive HEV/EV Onboard Charger Auxiliary Supply | ADAS Camera Module High-Voltage Bias Rail |
|---|---|
Use Scenario: Powers isolated gate drivers and level-shifters in bidirectional AC/DC converter control stages. IC Role / Device Role / Timing Role: Boost converter generating stable 24 V @ 150 mA from 12-V battery rail during charging cycles. Use Value: Enables direct integration of high-side IGBT/SiC gate drivers without discrete DC/DC isolation, reducing solution size by >40% vs. flyback alternatives. | Use Scenario: Supplies 30-V bias to CMOS image sensor analog front-end and lens actuator drivers. IC Role / Device Role / Timing Role: High-efficiency, low-noise boost regulator delivering 30 V @ 50 mA with <10 mVpp ripple at 1.2 MHz. Use Value: Eliminates need for external LDO post-regulation - preserves PSRR and avoids thermal derating in sealed camera housings. |
| Automotive Infotainment Display Backlight Driver | Vehicle Telematics LTE Modem Power Sequencing |
Use Scenario: Drives series-connected white LED strings in center-stack displays requiring 36-V compliance. IC Role / Device Role / Timing Role: Constant-current-capable boost controller (via external sense resistor) delivering up to 38 V with adjustable dimming interface. Use Value: Supports analog/PWM dimming via CTRL pin - simplifies MCU interface and removes need for separate LED driver IC. | Use Scenario: Generates 5-V auxiliary rail for LTE modem RF section during cold-cranking (battery dips to 6 V). IC Role / Device Role / Timing Role: Wide-input boost converter maintaining 5 V ±2% output across 6–16 V input transients. Use Value: Ensures uninterrupted modem operation during engine start - avoids call drop or GPS loss due to undervoltage reset. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM3478QMMX/NOPB | External MOSFET required; 1.25-V reference; no digital programming; 1-MHz max frequency. | Lacks integrated switch and CTRL-based reprogramming - requires additional FET, gate driver, and compensation components. | Choose when higher peak current (>1.5 A) or custom MOSFET selection (e.g., SiC) is needed; not drop-in. |
| MAX20074ATP/V+T | Integrated 2.2-A switch; 2.2-MHz switching; AEC-Q100 Grade 0; 2.5-V to 42-V input; no EasyScale™. | Higher switching frequency enables smaller magnetics but lacks 1-wire interface - requires external DAC or resistor network for output adjustment. | Prefer for space-constrained designs needing >2-MHz operation; avoid if firmware-controlled dynamic voltage scaling is required. |
Compared with LM3478QMMX/NOPB and MAX20074ATP/V+T, the TPS61170QDRVRQ1 uniquely combines AEC-Q100 Grade 1 qualification, integrated 1.2-A switch, 1.2-MHz fixed frequency, and dual-mode (PWM/EasyScale™) output reprogramming - making it optimal for automotive subsystems requiring both robustness and runtime configurability.
Availability
TPS61170QDRVRQ1 is available at Aetrix Electronics and suitable for HEV/EV charger systems, ADAS camera modules, infotainment display backlighting, and telematics power sequencing requiring stable component supply across automotive production lifecycles.
Supply support for TPS61170QDRVRQ1 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 electronics, with decades of automotive qualification expertise and broad power management portfolio.
The TPS61170QDRVRQ1 belongs to TI's automotive-qualified high-voltage DC/DC converter product line, designed specifically for safety-critical, high-reliability applications in electrified vehicles and advanced driver assistance systems.
FAQ
What is the maximum output voltage supported by the TPS61170QDRVRQ1?
The TPS61170QDRVRQ1 supports output voltages up to 38 V, limited by its integrated 40-V N-channel MOSFET breakdown rating and internal current-sense architecture. This enables direct generation of bias rails for sensors, LEDs, and gate drivers without external HV components. Operation at 38 V requires careful attention to PCB layout, inductor saturation current, and output capacitor voltage rating - as specified in the SLVSAX2B datasheet Section 8.2.
How does the CTRL pin function in the TPS61170QDRVRQ1?
The CTRL pin in the TPS61170QDRVRQ1 serves three distinct roles: (1) logic-level enable/disable (high = active, low = shutdown), (2) PWM input for proportional FB reference reduction, and (3) 1-wire EasyScale™ interface for 32-step digital programming. Its internal 800-kΩ pulldown ensures safe disable when floating. All modes are mutually exclusive and auto-detected based on signal timing - no configuration register required. Full timing details are in Section 7.4 of the TPS61170QDRVRQ1 datasheet.
Is the TPS61170QDRVRQ1 pin-compatible with any other TI boost converters?
No, the TPS61170QDRVRQ1 is not pin-compatible with other TI boost converters. Its 6-pin SON package pinout (FB-COMP-GND-SW-CTRL-VIN) is unique to this family. Devices like the TPS61088 or TPS61040 use different pin assignments, compensation schemes, and control architectures. Substitution requires full schematic and layout revision - even for functionally similar parts such as the LM3478QMMX/NOPB or MAX20074ATP/V+T.
What thermal management is required for the TPS61170QDRVRQ1 in automotive applications?
The TPS61170QDRVRQ1 requires soldering of its exposed thermal pad to a minimum 100-mm² copper pour connected to the analog ground plane via ≥4 thermal vias (0.3-mm diameter, filled). Per SLVSAX2B Section 6.4, junction-to-board thermal resistance is 65.9°C/W - meaning at 1.2-A load and 85°C ambient, junction temperature rises ~80°C above ambient. For continuous 125°C ambient operation, derate output current to ≤900 mA or add forced airflow. Thermal simulation using TI's PSpice models is recommended before final layout.
Does the TPS61170QDRVRQ1 support functional safety compliance out-of-the-box?
The TPS61170QDRVRQ1 is functional safety-capable per ISO 26262, with documentation (FIT rate, failure modes, diagnostic coverage analysis) available from TI to support ASIL-B system design. However, it does not include built-in diagnostics like window watchdogs or self-test circuits. Safety mechanisms - such as external voltage monitoring, current limiting verification, or thermal supervision - must be implemented at the system level. TI's TPS61170QDRVRQ1 Functional Safety FIT Calculator and FMEA report are accessible via the product folder on ti.com.
TPS61170QDRVRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up, Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Boost, Buck-Boost, Flyback, SEPIC
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 18V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- 38V
- Current - Output:
- 960mA (Switch)
- Frequency - Switching:
- 1.2MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WSON (2x2)
TPS61170QDRVRQ1 FAQ
1.How can I place an order for TPS61170QDRVRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61170QDRVRQ1 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 TPS61170QDRVRQ1 reliable?
The price and inventory of TPS61170QDRVRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61170QDRVRQ1 is usually 5 days.
3.What payment methods are accepted for TPS61170QDRVRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61170QDRVRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61170QDRVRQ1?
TPS61170QDRVRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61170QDRVRQ1 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 TPS61170QDRVRQ1?
For technical support, including TPS61170QDRVRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61170QDRVRQ1 requirements.
6.How does Aetrix verify that TPS61170QDRVRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS61170QDRVRQ1 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 TPS61170QDRVRQ1 meets industry standards.
7.What is the process for return or replacement of TPS61170QDRVRQ1?
All TPS61170QDRVRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS61170QDRVRQ1, 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 TPS61170QDRVRQ1 part is unused and in its original packaging.
Return procedure for TPS61170QDRVRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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