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Texas Instruments TPS60401QDBVRQ1
- Part No.:
- TPS60401QDBVRQ1
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TPS60401QDBVRQ1.pdf
- Description:
- IC REG CHG PUMP INV 60MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,642
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Product details
Overview
TPS60401QDBVRQ1 from Texas Instruments is an automotive-grade unregulated charge-pump voltage inverter IC that generates a negative output voltage (–VI) from a 1.8 V to 5.25 V input, delivering up to 60 mA output current with fixed 20-kHz switching frequency and requiring only three 1-µF ceramic capacitors. It serves as a compact, low-component-count negative supply generator for LCD bias, sensor analog front-ends, and automotive infotainment audio stages.
For engineers reviewing the TPS60401QDBVRQ1 datasheet, TPS60401QDBVRQ1 pinout, TPS60401QDBVRQ1 application, or TPS60401QDBVRQ1 equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification (–40°C to +125°C), integrated active Schottky-diode startup circuitry, 15 Ω typical output resistance at 25°C, and compatibility with standard 5-pin SOT-23 PCB footprints.
Technical Context
The TPS60401QDBVRQ1 implements a two-phase switched-capacitor inverter topology using internal MOSFET switches (S1–S4) to alternately charge and reverse-connect the flying capacitor (CFLY) between IN and GND/OUT nodes. Its fixed 20-kHz oscillator frequency ensures predictable EMI behavior and simplifies filtering design compared to variable-frequency variants.
Unlike regulated DC-DC converters, it provides unregulated inversion: output voltage VO ≈ –VI, with droop governed by load current and output resistance (RO ≈ 15 Ω). Startup into precharged loads is handled by integrated active Schottky-diode emulation, eliminating external diode requirements and enabling reliable turn-on with capacitive or op-amp-based loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.8 V to 5.25 V - supports single Li-ion, dual/triple alkaline/NiMH cells, or 3.3 V/5 V rail inputs without external regulation. |
| Output Current Max | 60 mA - sufficient for biasing LCD segments, op-amp dual supplies, or low-power analog signal chains. |
| Switching Frequency | 20 kHz (fixed) - enables use of larger, lower-cost ceramic capacitors and reduces high-frequency EMI concerns. |
| Quiescent Current | 65 µA (typical at 5 V) - minimizes standby power loss in always-on automotive modules. |
| Output Resistance | 15 Ω (typical at 25°C, VI = 5 V) - defines load-induced VO droop: ΔVO = IO × RO (e.g., –0.9 V drop at 60 mA). |
| ESD Rating | HBM ±2000 V, CDM ±1000 V - meets AEC-Q100 stress test requirements for automotive electronics robustness. |
| Operating Temp Range | –40°C to +125°C (ambient) - qualified for engine bay, dashboard, and ADAS module environments. |
Pinout & Package
TPS60401QDBVRQ1 is housed in a 5-pin SOT-23 (DBV) package with 2.80 mm × 2.90 mm body size and standard lead pitch. The package supports reflow soldering and fits high-density automotive PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT (Pin 1) | Power Output | Negative output node; delivers VO ≈ –VI; requires CO capacitor (1 µF min) to GND for ripple suppression. |
| IN (Pin 2) | Power Input | Positive input supply connection (1.8–5.25 V); must be bypassed to GND with CI = 1 µF ceramic capacitor. |
| CFLY– (Pin 3) | Flying Cap Terminal | Negative terminal of external flying capacitor CFLY; connects internally to switch network during phase transitions. |
| GND (Pin 4) | Ground Reference | Primary return path for IN, OUT, and internal logic; must be low-impedance and thermally coupled to PCB copper. |
| CFLY+ (Pin 5) | Flying Cap Terminal | Positive terminal of external flying capacitor CFLY; alternately connected to IN and GND via internal switches. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 Qualification | Validated for automotive ambient operation from –40°C to +125°C, including HBM/CDM ESD stress compliance. |
| Integrated Active Schottky-Diode Startup | Eliminates need for external reverse-blocking diode; ensures controlled startup into precharged loads (e.g., op-amp inputs). |
| Three-Capacitor Operation | Only CI, CFLY, and CO required (all 1 µF ceramic); reduces BOM count, board area (<50 mm²), and assembly cost. |
| Fixed 20-kHz Switching | Enables predictable filter design, avoids audible noise, and simplifies EMI mitigation versus variable-frequency alternatives. |
| Low Quiescent Current | 65 µA typical at 5 V input - extends battery life in always-on vehicle systems such as telematics or sensor nodes. |
Applications
| Automotive Infotainment Audio Bias | LCD Display Segment Driver Supply |
|---|---|
|
Use Scenario: Generating negative rail for Class-AB audio amplifier stages in head unit or digital radio modules. IC Role / Device Role / Timing Role: Unregulated voltage inverter providing –3.3 V or –5 V bias to op-amps and DAC output buffers. Use Value: Enables rail-to-rail analog signal swing with single-supply microcontrollers; eliminates need for transformer-based or inductor-based inverters. |
Use Scenario: Supplying negative gate bias voltage for passive-matrix LCD segment drivers in instrument clusters. IC Role / Device Role / Timing Role: Charge-pump inverter generating stable –5 V from 5 V MCU rail to control LCD contrast and drive strength. Use Value: Reduces component count vs discrete diode-capacitor pumps; maintains consistent contrast across temperature due to low RO drift. |
| Automotive Cluster Analog Front-End | Negative Supply for Precision Sensors |
|
Use Scenario: Powering dual-supply op-amps in vehicle speed or position sensor signal conditioning circuits. IC Role / Device Role / Timing Role: Compact negative voltage source for rail-splitting and reference generation in analog acquisition paths. Use Value: Supports >10-bit effective resolution by minimizing PSRR degradation from supply ripple; operates reliably at 125°C junction temp. |
Use Scenario: Providing isolated negative bias for MEMS pressure or inertial sensors requiring symmetric analog supplies. IC Role / Device Role / Timing Role: Low-noise, low-drift inverter delivering –2.5 V from 3.3 V system rail for sensor excitation and ADC reference. Use Value: Achieves <15 mVpp ripple with 1 µF CO; avoids ground-loop coupling issues inherent in inductor-based solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar charge-pump inverter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS60403QDBVRQ1 | Fixed 250-kHz switching frequency; higher quiescent current (425 µA typ); lower output ripple (15 mVpp vs 20 mVpp at 5 mA). | Better suited for space-constrained designs needing smaller CO/CFLY or lower ripple; less optimal for EMI-sensitive zones. | Select when board area is critical and higher IQ is acceptable; not drop-in due to different frequency-dependent capacitor values. |
| MAX680EPA+ | Non-automotive grade; 10-kHz fixed frequency; requires four external capacitors; no AEC-Q100 qualification. | Intended for industrial/commercial instrumentation; lacks automotive thermal and reliability validation. | Consider only for non-automotive prototypes or cost-sensitive non-safety applications; requires layout revision and requalification. |
Compared with TPS60401QDBVRQ1, TPS60403QDBVRQ1 trades higher IQ for reduced capacitor size and ripple, while MAX680EPA+ lacks automotive qualification and adds component count-making TPS60401QDBVRQ1 the optimal balance of AEC-Q100 compliance, simplicity, and performance for production automotive systems.
Availability
TPS60401QDBVRQ1 is available at Aetrix Electronics and suitable for automotive infotainment, instrument cluster, and LCD display applications requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for TPS60401QDBVRQ1 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 expertise in power management innovation.
TPS60401QDBVRQ1 belongs to TI's automotive-qualified charge-pump inverter product line, designed specifically to replace bulky inductor-based negative supplies in space- and reliability-critical vehicle subsystems.
FAQ
What is the maximum output current capability of the TPS60401QDBVRQ1?
The TPS60401QDBVRQ1 delivers up to 60 mA of continuous output current at the OUT pin under recommended operating conditions (VI = 1.8 V to 5.25 V, TJ ≤ 125°C). This rating assumes proper thermal management and use of 1-µF ceramic capacitors for CI, CFLY, and CO. Peak current capability may vary with input voltage and temperature, but sustained operation above 60 mA risks thermal shutdown or output voltage collapse due to its unregulated architecture.
Does the TPS60401QDBVRQ1 require an external Schottky diode for startup?
No, the TPS60401QDBVRQ1 integrates active Schottky-diode functionality to manage startup into precharged loads-eliminating the need for an external diode. This internal circuit prevents the output from rising above GND during initial power-up, ensuring safe turn-on for op-amp inputs, LCD drivers, and other capacitive loads. External diodes are neither required nor recommended.
Can the TPS60401QDBVRQ1 generate regulated output voltage?
No, the TPS60401QDBVRQ1 is an unregulated charge-pump inverter: its output voltage VO closely follows –VI but droops linearly with load current due to internal output resistance (~15 Ω). For regulated negative output, a post-regulator (e.g., low-dropout linear regulator) must be added downstream. The device itself provides no feedback, error amplifier, or voltage reference circuitry.
What capacitor values are required for stable operation of the TPS60401QDBVRQ1?
The TPS60401QDBVRQ1 requires three 1-µF X7R or X5R ceramic capacitors: CI (input bypass), CFLY (flying), and CO (output filter). All must be placed close to the DBV package pins with short, low-inductance traces. Lower-ESR capacitors improve efficiency and reduce ripple; values below 1 µF degrade output current capability and increase output resistance.
Is the TPS60401QDBVRQ1 pin-compatible with other devices in the TPS6040x-Q1 family?
Yes, all TPS6040x-Q1 variants-including TPS60400QDBVRQ1, TPS60401QDBVRQ1, TPS60402QDBVRQ1, and TPS60403QDBVRQ1-share identical 5-pin SOT-23 (DBV) pinout and footprint. However, they differ in switching frequency, quiescent current, and recommended capacitor values; direct substitution requires verification of ripple, efficiency, and thermal performance in the target application.
TPS60401QDBVRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Ratiometric
- Output Configuration:
- Positive or Negative
- Topology:
- Charge Pump
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.8V
- Voltage - Input (Max):
- 5.25V
- Voltage - Output (Min/Fixed):
- -Vin, 2Vin, Vin/2
- Voltage - Output (Max):
- -
- Current - Output:
- 60mA
- Frequency - Switching:
- 20kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TPS60401QDBVRQ1 FAQ
1.How can I place an order for TPS60401QDBVRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS60401QDBVRQ1 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 TPS60401QDBVRQ1 reliable?
The price and inventory of TPS60401QDBVRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS60401QDBVRQ1 is usually 5 days.
3.What payment methods are accepted for TPS60401QDBVRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS60401QDBVRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS60401QDBVRQ1?
TPS60401QDBVRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS60401QDBVRQ1 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 TPS60401QDBVRQ1?
For technical support, including TPS60401QDBVRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS60401QDBVRQ1 requirements.
6.How does Aetrix verify that TPS60401QDBVRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS60401QDBVRQ1 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 TPS60401QDBVRQ1 meets industry standards.
7.What is the process for return or replacement of TPS60401QDBVRQ1?
All TPS60401QDBVRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS60401QDBVRQ1, 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 TPS60401QDBVRQ1 part is unused and in its original packaging.
Return procedure for TPS60401QDBVRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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