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Texas Instruments TPS61087QWDRCRQ1
- Part No.:
- TPS61087QWDRCRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS61087QWDRCRQ1.pdf
- Description:
- IC REG BOOST ADJ 3.2A 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:1,772
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Product details
Overview
TPS61087QWDRCRQ1 from Texas Instruments is an AEC-Q100 qualified automotive-grade boost DC-DC converter with integrated 3.2-A/0.13-Ω N-channel MOSFET, 2.5–6-V input range, 18.5-V maximum output, and selectable 650-kHz or 1.2-MHz switching frequency-used in instrument clusters and ADAS power rails.
For engineers reviewing the TPS61087QWDRCRQ1 datasheet, TPS61087QWDRCRQ1 pinout, TPS61087QWDRCRQ1 application, or TPS61087QWDRCRQ1 equivalent, key selection criteria include functional safety support, thermal shutdown at 150°C, adjustable soft-start via external capacitor, UVLO threshold of 2.4 V, and external compensation for stability optimization.
Technical Context
The TPS61087QWDRCRQ1 employs current-mode control with quasi-constant frequency and adaptive OFF-time topology to deliver superior line and load transient response across automotive temperature ranges (–40°C to +125°C). Its externally compensated error amplifier (gm = 107 µA/V) enables precise loop tuning for varying output capacitance and inductor values.
Switching frequency is selected by FREQ pin logic level: GND sets 650 kHz (optimized for efficiency), while IN sets 1.2 MHz (optimized for smaller magnetics and faster transients). The device operates in CCM, DCM, or pulse-skip mode depending on load, with peak switch current limited to 3.2 A minimum and 4.8 A maximum.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5 V to 6 V - supports direct connection to automotive battery (cold-crank down to 2.5 V) without pre-regulation |
| Max Output Voltage | 18.5 V - powers 12-V and 15-V subsystems (e.g., LCD bias, audio amplifiers) from low-voltage rails |
| Switch Current Limit | 3.2 A min / 4.8 A max - enables ≥500 mA output at 15 V with >90% efficiency using 3.3-µH inductor |
| Switching Frequency | Selectable 650 kHz or 1.2 MHz - allows trade-off between EMI filtering size (1.2 MHz) and conduction loss (650 kHz) |
| Feedback Reference | 1.238 V ±1.4% - sets output voltage accuracy via resistor divider (e.g., R1 = 200 kΩ, R2 = 18 kΩ for 15 V) |
| Quiescent Current | 100 µA typical - minimizes standby power draw in always-on automotive modules |
| Thermal Shutdown | 150°C activation with 14°C hysteresis - protects against sustained overload or poor PCB thermal design |
Pinout & Package
TPS61087QWDRCRQ1 uses a 10-pin VSON (VQFN) package with wettable flanks, 3.00 mm × 3.00 mm body size and exposed thermal pad for enhanced thermal performance in automotive environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 COMP | Compensation node | Output of transconductance error amplifier; connects to RC network (e.g., 100 kΩ + 820 pF) for loop stability |
| 2 FB | Feedback input | Senses output voltage via resistor divider; regulates output to 1.238 V reference |
| 3 EN | Enable control | Active-high logic input; pulls low to disable converter and reduce IN supply current to 4 µA |
| 4 AGND | Analog ground | Reference for internal analog circuitry; must be separated from PGND and tied at single point |
| 5 PGND | Power ground | High-current return path for switch and inductor; connects to thermal pad for heat dissipation |
| 6,7 SW | Switch node | Drives external inductor and Schottky diode (e.g., SL22); handles peak currents up to 4.8 A |
| 8 IN | Input supply | Accepts 2.5–6 V; requires local 1-µF ceramic bypass and bulk 2×10-µF input capacitors |
| 9 FREQ | Frequency select | Logic-level input: GND → 650 kHz, IN → 1.2 MHz; determines inductor size and ripple trade-offs |
| 10 SS | Soft-start control | Charged with 10 µA current; 100-nF capacitor yields ~10-ms ramp time to limit inrush current |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q100 Grade 1 (–40°C to +125°C TJ) - certified for under-hood and cabin applications |
| Functional safety support | Documentation available for ISO 26262 ASIL-B system integration - enables safety analysis without hardware modification |
| Adjustable soft start | Capacitor-controlled ramp (e.g., 100 nF → ~10 ms) prevents input rail collapse during cold-start sequencing |
| External compensation | COMP pin allows full loop gain/phase tuning - accommodates wide range of output caps (e.g., 4×10 µF ceramic) and inductors (3.3–6.8 µH) |
| UVLO with hysteresis | 2.4 V turn-off / 2.5 V turn-on - avoids oscillation near battery brownout thresholds in stop-start systems |
| Wettable flank package | VSON-10 (DRC) with solderable side walls - enables automated optical inspection (AOI) for high-reliability automotive assembly |
Applications
| Instrument Clusters | ADAS Camera Power |
|---|---|
Use Scenario: Driving digital TFT-LCD displays and backlight drivers in vehicle dashboards requiring stable 12–15 V from 5-V MCU rail. IC Role / Device Role / Timing Role: Primary boost regulator supplying regulated 15 V/500 mA to display timing controller and LED driver ICs. Use Value: 1.2-MHz operation enables compact 3.3-µH inductor and low-profile layout; soft-start prevents display flicker at ignition-on. |
Use Scenario: Powering 12-V image sensors and ISP processors in forward-facing cameras operating in extreme ambient temperatures. IC Role / Device Role / Timing Role: High-efficiency step-up converter delivering 12 V/300 mA from 3.3-V domain, with thermal shutdown protecting against enclosure overheating. Use Value: AEC-Q100 qualification ensures reliability at 125°C junction; 650-kHz mode improves light-load efficiency during parking mode. |
| Infotainment Head Units | Telematics eCall Modules |
Use Scenario: Generating 9–12 V for audio amplifiers and RF front-ends in head units powered from 5-V USB-C or main battery rail. IC Role / Device Role / Timing Role: Secondary power stage boosting 5 V to 12 V for Class-D amplifier supply, synchronized via FREQ pin to avoid beat frequencies. Use Value: External compensation allows optimization for low-ESR polymer output caps; 3.2-A switch supports burst-mode audio peaks without dropout. |
Use Scenario: Providing 12-V backup power to GSM/LTE modems and GPS receivers during vehicle battery disconnect (e.g., crash event). IC Role / Device Role / Timing Role: Always-on boost converter maintaining modem functionality from supercapacitor or backup battery (2.5–4.5 V). Use Value: 2.5-V minimum input enables operation during deep battery sag; UVLO hysteresis prevents false resets during transient dips. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM3478QMMX/NOPB | External MOSFET required; no integrated switch; 1.25-V feedback reference; wider 2.5–40-V input range | Used where higher output voltage (>18.5 V) or higher power (>10 W) is needed; lacks soft-start pin and automotive qualification | Choose when designing for >20-V outputs or discrete FET control; not drop-in due to different pinout and external FET drive requirements |
| TPS61282DYFFR | Integrated 5-A switch; fixed 1.2-MHz frequency; 2.3–5.5-V input; 1.2-V feedback; no FREQ or SS pins | Targeted at portable consumer devices; lacks AEC-Q100 rating, thermal shutdown hysteresis, and UVLO precision | Consider only for non-automotive cost-sensitive designs needing higher current; incompatible pinout and missing functional safety documentation |
Compared with LM3478QMMX/NOPB and TPS61282DYFFR, the TPS61087QWDRCRQ1 uniquely combines AEC-Q100 qualification, selectable frequency, adjustable soft-start, and functional safety documentation-making it the only validated option for ASIL-B-compliant automotive boost stages requiring 15-V/500-mA output from 5-V rails.
Availability
TPS61087QWDRCRQ1 is available at Aetrix Electronics and suitable for automotive infotainment clusters, ADAS camera modules, and telematics eCall systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for TPS61087QWDRCRQ1 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 and embedded processing technologies, with decades of automotive IC development and AEC-Q100 validation expertise.
The TPS61087-Q1 product line delivers high-efficiency, functionally safe boost converters for automotive power management-designed specifically for instrument clusters, head units, and ADAS subsystems operating under harsh thermal and electrical conditions.
FAQ
What is the maximum output current capability of the TPS61087QWDRCRQ1 at 15 V output?
The TPS61087QWDRCRQ1 delivers up to 500 mA at 15 V output when operating from a 5-V input at 1.2-MHz switching frequency with a 3.3-µH inductor and proper layout. This is derived from its 3.2-A minimum switch current limit, accounting for duty cycle, efficiency (~92%), and thermal limits per the datasheet's Figure 1 and Figure 2 load curves.
How does the FREQ pin affect inductor selection for the TPS61087QWDRCRQ1?
The FREQ pin directly determines optimal inductor value: connecting FREQ to GND selects 650 kHz, requiring 6.8-µH (e.g., Wurth 74454068); connecting FREQ to IN selects 1.2 MHz, requiring 3.3-µH (e.g., Wurth 7447789003). Using mismatched inductors degrades efficiency and transient response, as confirmed in Section 8.2.1.2.1 of the TPS61087QWDRCRQ1 datasheet.
Can the TPS61087QWDRCRQ1 be used without the soft-start capacitor?
Yes-the TPS61087QWDRCRQ1 operates with SS pin left open (no capacitor), disabling soft-start and enabling immediate full-current startup. However, omitting the 100-nF CSS capacitor risks inrush current exceeding 3.2 A during cold-start, potentially causing input rail collapse or triggering upstream protection; TI recommends including it for automotive reliability.
What is the purpose of separate AGND and PGND pins on the TPS61087QWDRCRQ1?
AGND provides a quiet reference for the feedback amplifier and internal analog circuits, while PGND carries high di/dt switch return current. Separating them minimizes noise coupling into the regulation loop. The datasheet specifies routing AGND and PGND traces to a single-point star ground near the thermal pad to maintain <1.238-V feedback accuracy and prevent oscillation.
Does the TPS61087QWDRCRQ1 support output voltages above 15 V?
Yes-the TPS61087QWDRCRQ1 supports output voltages up to 18.5 V, verified across temperature and load in Section 6.5 (Electrical Characteristics). For example, a 18-V output is achievable using R1 = 301 kΩ and R2 = 18 kΩ (per Equation 8), provided external components (diode, capacitor, inductor) are rated for ≥20-V stress and thermal design accommodates reduced efficiency at higher VOUT/VIN ratios.
TPS61087QWDRCRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- 18.5V
- Current - Output:
- 3.2A (Switch)
- Frequency - Switching:
- 650kHz, 1.2MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSON (3x3)
TPS61087QWDRCRQ1 FAQ
1.How can I place an order for TPS61087QWDRCRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61087QWDRCRQ1 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 TPS61087QWDRCRQ1 reliable?
The price and inventory of TPS61087QWDRCRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61087QWDRCRQ1 is usually 5 days.
3.What payment methods are accepted for TPS61087QWDRCRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61087QWDRCRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61087QWDRCRQ1?
TPS61087QWDRCRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61087QWDRCRQ1 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 TPS61087QWDRCRQ1?
For technical support, including TPS61087QWDRCRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61087QWDRCRQ1 requirements.
6.How does Aetrix verify that TPS61087QWDRCRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS61087QWDRCRQ1 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 TPS61087QWDRCRQ1 meets industry standards.
7.What is the process for return or replacement of TPS61087QWDRCRQ1?
All TPS61087QWDRCRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS61087QWDRCRQ1, 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 TPS61087QWDRCRQ1 part is unused and in its original packaging.
Return procedure for TPS61087QWDRCRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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