TPS60400QDBVRQ1

TPS60400QDBVRQ1 – Texas Instruments Automotive 60 mA Charge Pump Inverter (SOT‑23‑5)

The Texas Instruments TPS60400QDBVRQ1 is an automotive‑grade, AEC‑Q100 qualified charge pump inverter designed to generate a small negative rail without an inductor. Part of the TPS60400‑Q1 series, this unregulated device delivers up to 60 mA in a compact SOT‑23‑5 (DBV) package, making it an excellent fit for sensor biasing, op‑amp negative supplies, and other low‑power inverting needs in harsh automotive environments from −40°C to +125°C.

Engineers and sourcing teams appreciate the combination of simplicity, reliability, and availability from Texas Instruments. With a 5‑pin surface‑mount footprint and tape‑and‑reel packaging, the TPS60400QDBVRQ1 streamlines both design and manufacturing for applications that require a modest negative voltage rail.

At a Glance: Key Benefits

• Automotive‑grade and AEC‑Q100 qualified (Grade 1) for ambient operation from −40°C to +125°C
• Unregulated charge pump inverter architecture—no inductor required
• Up to 60 mA output capability for low‑power negative rails
• Space‑saving SOT‑23‑5 (DBV) package simplifies layout in tight spaces
• Surface‑mount, tape‑and‑reel (DBVR) packaging for automated assembly
• Backed by Texas Instruments’ TPS60400‑Q1 family pedigree

Why Choose TPS60400QDBVRQ1 for Automotive Negative Rails?

Automotive systems often need a small, reliable negative voltage for analog front‑ends or active device biasing. Inductor‑based converters can add height, EMI concerns, and cost. The TPS60400QDBVRQ1’s charge pump inverter topology:

• Eliminates the inductor, reducing height and potential EMI compared with many switching regulators
• Keeps the bill of materials simple, making it easier to qualify and procure parts
• Offers a compact 5‑pin footprint that’s easy to place close to the load

For loads up to 60 mA, the TPS60400QDBVRQ1 delivers a practical balance of performance and simplicity, especially when tight regulation is not required.

Specifications

• Brand / Manufacturer: Texas Instruments
• Series: TPS60400‑Q1
• MPN: TPS60400QDBVRQ1
• Category: Power Management ICs (PMIC) – Charge Pump (Inverting)
• Function: Charge pump voltage inverter (unregulated)
• Max output current: 60 mA
• Package: SOT‑23‑5 (DBV)
• Package code: DBV (SOT‑23‑5)
• Packaging: Tape & Reel (DBVR)
• Mounting type: Surface mount
• Pin count: 5
• Automotive qualification: AEC‑Q100, Grade 1
• Operating temperature range: −40°C to +125°C
• Lifecycle status: Active
• RoHS / Environmental: RoHS compliant (lead‑free/green)

Notes on unlisted parameters: Input voltage range, efficiency, oscillator frequency, and exact external component values are not specified here—refer to the Texas Instruments datasheet for design‑critical details.

How the Unregulated Inverter Behaves

As an unregulated charge pump, the TPS60400QDBVRQ1 inverts the input, producing an output that is approximately −VIN. The actual output depends on load current and conduction losses (e.g., switch resistance and diode characteristics in the charge pump path). As load current increases towards the 60 mA envelope, the magnitude of the negative output will decrease from the ideal −VIN target.

Implications for designers:

• If your application requires a tightly controlled negative voltage, consider post‑regulation or selection of precision references downstream.
• If your circuitry can tolerate some variation (common for bias rails), the TPS60400QDBVRQ1 offers a simple, space‑efficient solution.

Application Examples

• Automotive systems requiring a small negative rail
• Sensor biasing (e.g., bridge sensors, photodiodes) where a modest negative rail improves linear range
• Op‑amp and instrumentation amplifier negative supply rails in body, infotainment, or ADAS sub‑systems
• General‑purpose low‑power inverting converter use cases in embedded designs

These examples highlight common needs for a small negative rail. Always verify voltage and current requirements against your worst‑case system conditions.

Design‑In Considerations

• Output headroom: Because the output is unregulated, reserve margin for droop under load. Validate at minimum and maximum ambient temperatures.
• Filtering: For sensitive analog loads, local decoupling and RC filtering can reduce ripple and noise. Place capacitors close to the device pins and the load.
• PCB layout: Keep the charge pump loop compact. Short, wide traces to the flying and reservoir capacitors help minimize losses and improve performance.
• Thermal: Grade 1 AEC‑Q100 qualification supports −40°C to +125°C ambient. Check your thermal design and derating at peak load.
• System safety: In automotive contexts, consider fault detection and system‑level protection per your safety goals. Incorporate appropriate input protection and layout isolation as required by your design standards.

Design parameters such as input voltage limits, recommended capacitor values and types, and switching behavior must be taken from the official TI datasheet.

Ordering Information and Part Number Breakdown

• Full orderable part number: TPS60400QDBVRQ1
• Series: TPS60400‑Q1
• Package code: DBV = SOT‑23‑5
• Packaging suffix: R = Tape & Reel (DBVR)
• Q1 suffix: Automotive grade (AEC‑Q100 qualified)

This breakdown helps procurement teams quickly confirm the correct form factor and automotive qualification. If you require a different package or non‑automotive variant, consult the TPS60400 family on the TI product page.

Lifecycle, Availability, and Sourcing

• Lifecycle status: Active (per provided data)
• Inventory quantity: 0 in the provided snapshot
• Origin/OCM: Texas Instruments

Sourcing guidance:

• For automotive builds, prioritize franchised, authorized distributors to ensure traceability and access to current date codes.
• When inventory is constrained, check the TI product page and authorized channels for lead‑time updates and potential allocation requirements.
• Maintain a second‑source plan at the design level where possible, even if a direct drop‑in replacement is not defined.

Compliance and Quality

• AEC‑Q100: Qualified, Grade 1
• RoHS: Compliant (lead‑free/green)

These attributes make the TPS60400QDBVRQ1 suitable for automotive environments and global markets with RoHS restrictions. If your quality flow requires additional documentation (e.g., PPAP or IMDS entries), consult TI’s quality and compliance resources via the product page.

Use Cases that Benefit from a Charge Pump Inverter

• Space‑constrained modules: The SOT‑23‑5 footprint and inductor‑less architecture keep z‑height low and layout compact.
• EMI‑sensitive designs: Fewer magnetic components can simplify EMI containment strategies compared with many inductor‑based alternatives.
• Low‑to‑moderate current rails: Up to 60 mA output current aligns well with bias rails and small analog sub‑systems.

If your system needs higher current or tighter regulation, evaluate whether post‑regulation or a different topology is more appropriate.

Alternatives and Replacements

• Direct drop‑in replacements: Not specified in the provided data
• Family/series options: See the Texas Instruments TPS60400‑Q1 product page for related devices if your requirements differ

When selecting alternatives, ensure the same automotive qualification level and environmental ratings if your application demands them.

Frequently Asked Questions (FAQs)

Q: What output voltage does the TPS60400‑Q1 provide?
A: It inverts the input to generate an approximately −VIN output (unregulated), with some drop due to switch resistance and diode losses.

Q: What is the maximum output current?
A: Up to 60 mA (load‑dependent, with increased voltage drop at higher current).

Q: Is the device automotive qualified?
A: Yes. TPS60400‑Q1 is AEC‑Q100 qualified (Grade 1) for −40°C to +125°C ambient operation.

Practical Tips for Faster Sourcing

• Confirm the full orderable code: TPS60400QDBVRQ1 indicates Q1 automotive grade, DBV SOT‑23‑5 package, and R tape‑and‑reel.
• Cross‑check compliance: Ensure AEC‑Q100 Grade 1 and RoHS compliance are noted on your purchase records.
• Align logistics: Tape‑and‑reel (DBVR) supports automated pick‑and‑place; verify reel sizes and packing preferences with your EMS.
• Plan for demand peaks: Automotive programs can tighten supply; monitor lead times through TI’s authorized channels.

Resources

• Datasheet: https://www.ti.com/lit/ds/symlink/tps60400-q1.pdf
• Product page: https://www.ti.com/product/TPS60400-Q1

Summary

The Texas Instruments TPS60400QDBVRQ1 is an AEC‑Q100 qualified, automotive‑grade charge pump inverter in a compact SOT‑23‑5 (DBV) package. It delivers up to 60 mA for modest, unregulated negative rails—ideal for sensor biasing, analog stages, and other low‑power subsystems. With simple external components, a tiny footprint, and RoHS compliance, it helps teams meet performance goals while keeping BOMs and layouts straightforward. For complete electrical limits and design guidance, consult the official TI datasheet and product page.