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Texas Instruments TPS61041QDBVRQ1
- Part No.:
- TPS61041QDBVRQ1
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TPS61041QDBVRQ1.pdf
- Description:
- IC LED DRVR RGLTR 250MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:5,367
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Product details
Overview
TPS61041QDBVRQ1 from Texas Instruments is an automotive-grade, high-frequency DC-DC boost converter in a 5-pin SOT-23 package. It operates from 1.8 V to 6 V input, delivers up to 28 V output, features 250 mA internal switch current limit, 28 µA typical quiescent current, and supports pulse-frequency modulation (PFM) control for LCD bias and white-LED backlight supplies in ADAS and infotainment systems.
For engineers reviewing the TPS61041QDBVRQ1 datasheet, TPS61041QDBVRQ1 pinout, TPS61041QDBVRQ1 application, or TPS61041QDBVRQ1 equivalent, key selection considerations include its AEC-Q100 qualification, adjustable output voltage range, low-noise PFM operation, thermal shutdown protection, and compatibility with small ceramic output capacitors in space-constrained automotive modules.
Technical Context
The TPS61041QDBVRQ1 implements constant peak-current control with pulse-frequency modulation (PFM), enabling stable discontinuous conduction mode (DCM) operation across load currents. Its internal N-channel MOSFET has 750–1300 mΩ RDS(on) at 2.4 V input and 200 mA, and it enforces a 6 µs maximum ON-time and 400 ns minimum OFF-time for timing safety.
It integrates undervoltage lockout (1.5 V threshold), internal soft-start (two-step current limit ramp over 512 cycles), and thermal shutdown (168°C trip with 25°C hysteresis). Feedback regulation uses a precise 1.233 V reference with ±27 mV tolerance over –40°C to 125°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.8 V to 6 V - supports single-cell Li-ion, dual-cell NiMH/NiCd, and pre-regulated automotive rails |
| Output Voltage Range | Adjustable up to 28 V - set via external resistor divider on FB pin; enables LCD bias and LED string drive |
| Switch Current Limit | 250 mA typical - lower than TPS61040-Q1, reducing output ripple and allowing smaller inductors for low-power applications |
| Quiescent Current | 28 µA typical - enables high efficiency at light loads, critical for always-on telematics modules |
| Shutdown Current | 1 µA typical - minimizes battery drain during system sleep modes |
| Switching Frequency | Up to 1 MHz - permits use of compact 2.2–47 µH inductors and 1 µF ceramic output capacitors |
| Feedback Reference | 1.233 V ±27 mV - tight tolerance ensures accurate output voltage setting across temperature |
Pinout & Package
TPS61041QDBVRQ1 is housed in a 5-pin SOT-23 (DBV) package measuring 2.90 mm × 1.60 mm, optimized for high-density automotive PCB layouts with minimal thermal resistance (RθJA = 153.5°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW (Pin 1) | Switch node | Drain of internal N-MOSFET; connects to inductor and Schottky diode; switches up to 30 V |
| GND (Pin 2) | Power ground | Reference for all internal circuitry and return path for inductor current and feedback network |
| FB (Pin 3) | Feedback input | Monitors output voltage via resistor divider; triggers switching when voltage falls below 1.233 V |
| EN (Pin 4) | Enable control | Active-high logic input; pulling low disables device and reduces supply current to ≤1 µA |
| VIN (Pin 5) | Input supply | Accepts 1.8–6 V; powers internal bias circuitry and MOSFET gate driver |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Qualified | Rated for automotive applications (Grade 1: –40°C to +125°C ambient), including eCall, ADAS, and clusters |
| Internal Soft Start | Two-stage current limit ramp (256 cycles each) prevents input rail sag and system brownout during power-up |
| Pulse-Frequency Modulation | PFM control maintains >70% efficiency from 0.1 mA to 30 mA load, eliminating need for external compensation |
| Thermal Shutdown | Auto-recovery protection at 168°C junction temperature with 25°C hysteresis, safeguarding against sustained overload |
| Low-Noise Feedback Architecture | Supports feed-forward capacitor (CFF) on FB divider to suppress double-pulsing and reduce output ripple |
Applications
| Automotive Telematics Power Supply | ADAS Camera Bias Generation |
|---|---|
Use Scenario: Powers GPS/GSM modules in vehicle emergency call (eCall) systems requiring stable 18 V from 3.6 V battery rail. IC Role / Device Role / Timing Role: Boost converter providing regulated high-voltage bias for RF front-end and sensor interface ICs. Use Value: 28 µA quiescent current extends battery life during standby; AEC-Q100 qualification ensures reliability under vibration and thermal cycling. | Use Scenario: Generates 24 V bias for image sensor analog front-end in forward-facing ADAS cameras. IC Role / Device Role / Timing Role: High-efficiency DC-DC stage converting 5 V domain to precise, low-ripple 24 V for CCD/CMOS sensor bias rails. Use Value: 250 mA current limit enables compact 10 µH inductor selection; PFM operation avoids EMI-sensitive frequency bands. |
| Infotainment LCD Panel Driver | White-LED Backlight for Cluster Display |
Use Scenario: Supplies 18 V to TFT-LCD source/gate drivers in digital instrument clusters operating from 12 V battery via 5 V LDO. IC Role / Device Role / Timing Role: Adjustable-output boost regulator delivering stable high-voltage rail for display panel timing and pixel charging. Use Value: Adjustable output via FB divider allows one BOM for multiple panel voltages; SOT-23 footprint saves board space in tight cluster assemblies. | Use Scenario: Drives 4-series white-LED strings (12–16 V forward) in automotive dashboard backlighting using 3.3 V MCU rail. IC Role / Device Role / Timing Role: Constant-voltage boost source with fast transient response to PWM dimming signals. Use Value: 1 MHz max switching frequency enables use of 1 µF ceramic output capacitor; low RDS(on) minimizes thermal rise in sealed housing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61040QDBVRQ1 | 400 mA switch current limit vs. 250 mA; higher RDS(on) (600–1100 mΩ); same package and pinout | Supports higher output power (e.g., 50 mA LED strings); less suitable for ultra-low-ripple, low-power bias rails | Select when higher load current or higher output voltage stability under dynamic load is required |
| MAX17222ATA+T | 200 mA switch limit; 1.8–5.5 V input; 2.5 µA quiescent current; 12-bit EN-controlled output adjustment | Lower IQ ideal for battery-critical wearables; lacks AEC-Q100 rating and automotive temp range | Choose only for non-automotive, ultra-low-power portable designs where qualification is not required |
Compared with TPS61041QDBVRQ1, the TPS61040QDBVRQ1 offers higher output current capability at the cost of increased ripple and larger inductor requirements, while the MAX17222ATA+T provides superior quiescent performance but cannot replace TPS61041QDBVRQ1 in AEC-Q100-compliant automotive systems due to missing qualification and reduced temperature range.
Availability
TPS61041QDBVRQ1 is available at Aetrix Electronics and suitable for automotive telematics, ADAS camera modules, infotainment LCD bias, and white-LED backlighting requiring stable component supply with full AEC-Q100 traceability and long-term production support.
Supply support for TPS61041QDBVRQ1 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 experience in power management innovation.
The TPS6104x-Q1 product line was designed specifically for high-reliability automotive power conversion tasks-including LCD bias, LED backlighting, and sensor bias-where AEC-Q100 compliance, wide input range, and compact solution size are mandatory.
FAQ
What is the maximum output voltage supported by the TPS61041QDBVRQ1?
The TPS61041QDBVRQ1 supports an adjustable output voltage range up to 28 V, set externally via a resistor divider connected to the FB pin. This capability enables its use in LCD bias supplies and multi-LED string drivers. The internal 1.233 V reference and precision feedback architecture ensure stable regulation across temperature and load conditions. Output voltage must remain within absolute maximum ratings: SW pin voltage ≤30 V, and output capacitor voltage rating must exceed the programmed VOUT.
Does the TPS61041QDBVRQ1 require an external feed-forward capacitor?
Yes, the TPS61041QDBVRQ1 requires a feed-forward capacitor (CFF) across the upper feedback resistor to prevent double-pulsing and excessive output voltage ripple. A typical starting value is 10 pF, though optimal value depends on inductor selection and switching frequency-calculated as CFF ≈ 1/(2π·fS·20·R1). Omitting CFF degrades line regulation and increases ripple, especially at low switching frequencies. The TPS61041QDBVRQ1 datasheet provides design equations and layout guidance for proper CFF implementation.
How does the TPS61041QDBVRQ1 achieve high efficiency at light loads?
The TPS61041QDBVRQ1 achieves high efficiency at light loads through pulse-frequency modulation (PFM) control and ultra-low 28 µA typical quiescent current. In PFM mode, the device skips switching cycles when output demand is low, minimizing switching losses. Combined with constant peak-current control and optimized gate drive, this architecture sustains >70% efficiency down to 0.1 mA output current. The 1 µA shutdown current further extends battery life in always-on automotive subsystems powered by the TPS61041QDBVRQ1.
Is the TPS61041QDBVRQ1 pin-compatible with the TPS61040QDBVRQ1?
Yes, the TPS61041QDBVRQ1 is pin-compatible with the TPS61040QDBVRQ1-both use identical 5-pin SOT-23 (DBV) packaging and share identical pin configuration (SW, GND, FB, EN, VIN). This allows direct substitution in existing layouts when lower output current (250 mA vs. 400 mA) and reduced output ripple are acceptable. However, due to differing RDS(on) and current-limit thresholds, system-level validation of efficiency, thermal performance, and transient response is recommended after replacement.
What thermal protection features does the TPS61041QDBVRQ1 include?
The TPS61041QDBVRQ1 includes internal thermal shutdown that disables the power MOSFET when junction temperature exceeds approximately 168°C, with ~25°C hysteresis for auto-recovery. This protection is independent of ambient temperature and activates under sustained overload, poor PCB thermal design, or high ambient conditions. The device's SOT-23 package has documented thermal metrics: RθJA = 153.5°C/W and RθJB = 33.5°C/W, enabling accurate board-level thermal modeling. No external components are needed to enable this feature-it operates automatically within the TPS61041QDBVRQ1 silicon.
TPS61041QDBVRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Regulator
- Topology:
- Step-Up (Boost)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 1.8V
- Voltage - Supply (Max):
- 6V
- Voltage - Output:
- 28V
- Current - Output / Channel:
- 250mA (Switch)
- Frequency:
- 1MHz
- Dimming:
- -
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TPS61041QDBVRQ1 FAQ
1.How can I place an order for TPS61041QDBVRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61041QDBVRQ1 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 TPS61041QDBVRQ1 reliable?
The price and inventory of TPS61041QDBVRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61041QDBVRQ1 is usually 5 days.
3.What payment methods are accepted for TPS61041QDBVRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61041QDBVRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61041QDBVRQ1?
TPS61041QDBVRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61041QDBVRQ1 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 TPS61041QDBVRQ1?
For technical support, including TPS61041QDBVRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61041QDBVRQ1 requirements.
6.How does Aetrix verify that TPS61041QDBVRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS61041QDBVRQ1 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 TPS61041QDBVRQ1 meets industry standards.
7.What is the process for return or replacement of TPS61041QDBVRQ1?
All TPS61041QDBVRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS61041QDBVRQ1, 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 TPS61041QDBVRQ1 part is unused and in its original packaging.
Return procedure for TPS61041QDBVRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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