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Texas Instruments TPS61041AQDBVRQ1
- Part No.:
- TPS61041AQDBVRQ1
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TPS61041AQDBVRQ1.pdf
- Description:
- 1.8-V TO 6-V INPUT RANGE, 250-MA
- Quantity:
- Payment:
- Shipping:
Inventory:2,252
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Product details
Overview
TPS61041AQDBVRQ1 from Texas Instruments is an automotive-grade DC-DC boost converter IC in SOT-23-5 package, designed to generate up to 28 V output from 1.8–6 V input with 250 mA internal switch current limit, 28 µA typical quiescent current, and pulse-frequency-modulation (PFM) control for high efficiency in LCD bias and white-LED backlight applications.
For engineers reviewing the TPS61041AQDBVRQ1 datasheet, TPS61041AQDBVRQ1 pinout, TPS61041AQDBVRQ1 application, or TPS61041AQDBVRQ1 equivalent, key selection considerations include its AEC-Q100 qualification, adjustable output voltage range, 250 mA peak switch current limit, 1 MHz max switching frequency, and thermal shutdown protection at 168°C junction temperature.
Technical Context
The TPS61041AQDBVRQ1 implements constant peak-current PFM control with a typical 250 mA internal MOSFET current limit and 1.233 V internal reference, enabling stable discontinuous conduction mode (DCM) operation across wide load ranges. Its 6 µs maximum ON-time and 400 ns minimum OFF-time ensure robust timing control under transient conditions.
It integrates undervoltage lockout (1.5 V threshold), internal soft-start (two-step current ramp over 512 cycles), and thermal shutdown with 25°C hysteresis. The device operates without external compensation and supports feed-forward capacitor optimization for feedback stability in high-impedance voltage dividers.
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 rails |
| Output Voltage Range | Up to 28 V - adjustable via external resistor divider; enables LCD bias and LED string drive |
| Switch Current Limit | 250 mA (typ) - lower than TPS61040-Q1, reducing output ripple and enabling smaller inductors |
| Quiescent Current | 28 µA (typ) - minimizes battery drain in always-on automotive subsystems |
| Shutdown Current | 1 µA (typ) - ensures ultra-low power-off leakage in safety-critical modules |
| Switching Frequency | Up to 1 MHz - allows use of compact ceramic or tantalum output capacitors |
| Feedback Reference | 1.233 V (typ) - sets output voltage accuracy and line/load regulation performance |
Pinout & Package
TPS61041AQDBVRQ1 is housed in a 5-pin SOT-23 package (2.90 mm × 1.60 mm body size) with exposed pad for thermal enhancement. Pin numbering follows standard top-view orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW (Pin 1) | Switch node | Connects to inductor and Schottky diode anode; carries pulsed high-side switch current |
| GND (Pin 2) | Power ground | Primary return path for switch current and IC bias; must be low-impedance PCB plane |
| FB (Pin 3) | Feedback input | Monitors output voltage via resistor divider; regulates output by comparing to 1.233 V reference |
| EN (Pin 4) | Enable control | Active-high logic input; pulling to GND disables switching and reduces supply current to 1 µA |
| VIN (Pin 5) | Input supply | Accepts 1.8–6 V input; powers internal bias circuitry and MOSFET gate driver |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Rated for –40°C to +125°C ambient operation - validated for automotive telematics and ADAS systems |
| Internal soft-start | Two-stage current limit ramp over 512 cycles - prevents input rail sag during startup |
| Thermal shutdown with hysteresis | Triggers at ~168°C junction temperature with 25°C recovery margin - protects against sustained overload |
| Undervoltage lockout (UVLO) | Disables operation below ~1.5 V input - avoids erratic behavior during brownout or battery depletion |
| Low-noise PFM control | Operates in DCM with variable frequency - maintains >70% efficiency from 0.1 mA to 30 mA load |
Applications
| Automotive Telematics Power Supply | LCD Bias Generation |
|---|---|
Use Scenario: Powers GPS module, cellular modem, and eCall circuitry from 12 V battery via pre-regulated 3.3 V rail. IC Role / Device Role / Timing Role: Boost converter generating stable 5 V or 12 V from 3.3 V input with minimal quiescent current. Use Value: 28 µA quiescent current extends battery backup runtime; AEC-Q100 qualification ensures reliability in vibration-prone vehicle environments. | Use Scenario: Supplies 18 V bias for TFT-LCD source/drain drivers in instrument clusters. IC Role / Device Role / Timing Role: Adjustable-output boost regulator with precise feedback control and low output ripple. Use Value: 250 mA current limit enables use of 10 µH inductor (e.g., Murata LQH3C100K24), minimizing board area while maintaining <1% output voltage drift over temperature. |
| White-LED Backlight Driver | Li-Ion Battery-Powered Sensor Node |
Use Scenario: Drives 4–6 series-connected white LEDs (VF ≈ 3.2 V each) in infotainment display backlight. IC Role / Device Role / Timing Role: Constant-voltage boost source with feed-forward capacitor stabilization for low ripple. Use Value: Feed-forward capacitor (e.g., 22 pF) suppresses double-pulsing on SW pin, reducing LED current ripple to <5% and eliminating visible flicker. | Use Scenario: Powers ultra-low-power environmental sensor (I²C interface, 10 µA sleep current) from single-cell Li-Ion (3.0–4.2 V). IC Role / Device Role / Timing Role: Efficient step-up converter delivering regulated 3.3 V with minimal standby loss. Use Value: 1 µA shutdown current preserves battery capacity during multi-week sleep intervals; UVLO prevents malfunction during deep discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61040AQDBVRQ1 | 400 mA switch current limit vs. 250 mA; higher RDS(on) (600–1100 mΩ vs. 750–1300 mΩ) | Supports higher output power (e.g., 12 V @ 50 mA); less suitable for low-ripple, space-constrained designs | Select when higher load current capability is required and inductor size is not constrained. |
| MAX17222ETA+T | 200 mA switch current, 1.8–5.5 V input, 2.5–5.5 V fixed output options; no adjustable feedback | Targeted at low-voltage microcontroller supply rails; lacks 28 V capability and automotive qualification | Choose only for non-automotive, fixed-output, sub-200 mA applications where footprint and cost outweigh flexibility. |
Compared with TPS61041AQDBVRQ1, the TPS61040AQDBVRQ1 delivers higher output current but increases ripple and requires larger magnetics, while the MAX17222ETA+T sacrifices adjustability and automotive compliance for lower BOM count in consumer-grade portable devices.
Availability
TPS61041AQDBVRQ1 is available at Aetrix Electronics and suitable for automotive telematics, LCD bias supplies, white-LED backlighting, and battery-powered sensor nodes requiring stable component supply with full AEC-Q100 traceability and long-term production support.
Supply support for TPS61041AQDBVRQ1 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 IC design and automotive qualification.
The TPS6104x-Q1 product line was developed specifically for high-reliability, low-quiescent-current boost conversion in automotive infotainment, ADAS, and telematics systems operating from 1.8–6 V sources.
FAQ
What is the maximum output voltage supported by the TPS61041AQDBVRQ1?
The TPS61041AQDBVRQ1 supports an adjustable output voltage range up to 28 V, set by an external resistor divider connected to the FB pin. This capability enables use in LCD bias supplies and white-LED backlights requiring voltages beyond standard logic rails. The internal 1.233 V reference and precision feedback path maintain regulation accuracy across temperature and load.
Does the TPS61041AQDBVRQ1 require an external feed-forward capacitor?
Yes, the TPS61041AQDBVRQ1 requires a feed-forward capacitor (e.g., 22 pF) across the upper feedback resistor to prevent double-pulsing on the SW pin and minimize output voltage ripple. Without it, the device may exhibit burst-mode behavior, increasing ripple beyond acceptable limits for sensitive analog circuits like LCD bias generators.
How does the TPS61041AQDBVRQ1 differ from the TPS61040AQDBVRQ1?
The TPS61041AQDBVRQ1 features a 250 mA typical switch current limit versus 400 mA for the TPS61040AQDBVRQ1, resulting in lower output voltage ripple and compatibility with smaller inductors. It also has slightly higher RDS(on) (750–1300 mΩ vs. 600–1100 mΩ), making it optimized for lower-power, space-constrained automotive applications where efficiency at light loads is critical.
Is the TPS61041AQDBVRQ1 qualified for automotive applications?
Yes, the TPS61041AQDBVRQ1 is AEC-Q100 Grade 1 qualified, rated for operation from –40°C to +125°C ambient temperature, and designed for automotive telematics, infotainment, and ADAS systems. Its integrated thermal shutdown, UVLO, and robust ESD protection (±2000 V HBM) meet stringent automotive reliability requirements.
What is the shutdown current specification for the TPS61041AQDBVRQ1?
The TPS61041AQDBVRQ1 draws 1 µA typical shutdown current when the EN pin is pulled low. This ultra-low leakage enables extended battery life in always-on automotive subsystems such as eCall modules or tire pressure monitoring sensors, where standby power consumption directly impacts system longevity.
TPS61041AQDBVRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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
- Frequency:
- 1MHz
- Dimming:
- No
- Applications:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TPS61041AQDBVRQ1 FAQ
1.How can I place an order for TPS61041AQDBVRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61041AQDBVRQ1 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 TPS61041AQDBVRQ1 reliable?
The price and inventory of TPS61041AQDBVRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61041AQDBVRQ1 is usually 5 days.
3.What payment methods are accepted for TPS61041AQDBVRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61041AQDBVRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61041AQDBVRQ1?
TPS61041AQDBVRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61041AQDBVRQ1 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 TPS61041AQDBVRQ1?
For technical support, including TPS61041AQDBVRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61041AQDBVRQ1 requirements.
6.How does Aetrix verify that TPS61041AQDBVRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS61041AQDBVRQ1 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 TPS61041AQDBVRQ1 meets industry standards.
7.What is the process for return or replacement of TPS61041AQDBVRQ1?
All TPS61041AQDBVRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS61041AQDBVRQ1, 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 TPS61041AQDBVRQ1 part is unused and in its original packaging.
Return procedure for TPS61041AQDBVRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS61041AQDBVRQ1 Tags
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BCR402RE6327HTSA1
Infineon Technologies
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BCR420UE6433HTMA1
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Power Integrations
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HV9910CLG-G
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CL2N8-G
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BCR420UW6-7
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BCR421UW6-7
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BCR420UFD-7
Diodes Incorporated
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BCR421UFD-7
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