TPS61040AQDBVRQ1 Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
TPS61040AQDBVRQ1 is an AEC-Q100 qualified current-mode boost converter by Texas Instruments with 1.8 V to 6 V input range. Key specs: 400 mA switch current, pulse frequency modulation control, 5-pin SOT-23 package. Available in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- TPS61040AQDBVRQ1 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.1528(MOQ 250)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- AEC-Q100 automotive-qualified boost converter rated for -40°C to +125°C junction temperature, ensuring reliable operation in harsh in-vehicle environments
- Pulse frequency modulation (PFM) control maintains high efficiency at light loads, extending battery life in automotive key-fob and sensor node applications
- Wide 1.8 V to 6 V input range with 400 mA peak switch current supports single-cell Li-ion and alkaline battery boost designs in a compact 5-pin SOT-23 package
Applications
TPS61040AQDBVRQ1 is designed for automotive body electronics applications such as key fobs, tire-pressure monitoring sensors, and interior ambient lighting drivers where a compact AEC-Q100 qualified boost converter is required. Its 1.8 V minimum input allows operation from a deeply discharged single-cell alkaline or Li-ion battery, maximizing usable battery capacity. The device also fits portable consumer electronics and wearable sensors requiring a small-footprint 5 V or higher output boost regulator with low quiescent current.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE FREQUENCY MODULATION |
| Input Voltage-Max | 6V |
| Input Voltage-Min | 1.8V |
| Input Voltage-Nom | 2.4V |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 0.5A |
| Output Voltage-Max | 28V |
| Output Voltage-Min | 1.8V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP5,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Screening Level | AEC-Q100 |
| Surface Mount | YES |
| Switcher Configuration | BOOST |
| Switching Frequency-Max | 1000kHz |
| Technology | CMOS |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range and peak switch current does TPS61040AQDBVRQ1 support in boost mode?
TPS61040AQDBVRQ1 supports a 1.8 V to 6 V input voltage range with a 400 mA peak inductor switch current, allowing it to boost a single alkaline cell at 0.9 V minimum discharge (effectively down to 1.8 V with two cells in series) up to output voltages exceeding 12 V depending on duty cycle. This combination covers the full discharge curve of 1S and 2S battery packs without undervoltage shutdown interrupting automotive sensor operation.
Why is PFM control in TPS61040AQDBVRQ1 advantageous for automotive key-fob or TPMS sensor designs?
Pulse frequency modulation reduces switching activity to only the pulses needed to maintain output regulation, resulting in quiescent currents in the single-digit microamp range at light loads — critical for TPMS sensors and key fobs that must survive years on a coin cell with average currents below 10 µA. Fixed-frequency PWM converters maintain continuous switching regardless of load, wasting 50–200 µA even when the load draws only a few microamps, which would cut battery life by 30–50% in duty-cycle-limited automotive wake-up devices.
How does AEC-Q100 qualification of TPS61040AQDBVRQ1 differ from standard commercial-grade boost converters?
AEC-Q100 qualification requires TPS61040AQDBVRQ1 to pass accelerated life tests including temperature cycling from -40°C to +125°C for 1000 hours, humidity bias testing at 85°C/85% RH, electrostatic discharge testing per AEC-Q100-002, and latch-up immunity beyond 100 mA at 125°C junction temperature. Commercial-grade equivalents typically only guarantee operation to 85°C junction and skip several reliability stress screens, making TPS61040AQDBVRQ1 the mandatory choice for Tier-1 automotive ECU designs that must pass PPAP and meet ISO 26262 functional safety supply chain requirements.
What external components are required around TPS61040AQDBVRQ1 and how compact can the total solution be?
A complete TPS61040AQDBVRQ1 boost converter requires 3–4 external components: one inductor (typically 4.7 µH to 10 µH), one Schottky diode (40 V, 500 mA), one output capacitor (10 µF ceramic), and optionally a feedback resistor divider for adjustable output. Including the 5-pin SOT-23 IC, the total solution fits within a 5 mm x 5 mm PCB area, making it one of the smallest automotive-grade boost converter solutions available for coin-cell-powered modules.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 250+ | $1.2342 | $308.55 |
| 500+ | $1.1896 | $594.79 |
| 1000+ | $1.1528 | $1152.84 |
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