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Texas Instruments TPS57140QDRCRQ1
- Part No.:
- TPS57140QDRCRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS57140QDRCRQ1.pdf
- Description:
- IC REG BUCK ADJ 1.5A 10VSON
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TPS57140QDRCRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-qualified 42-V, 1.5-A synchronous step-down DC-DC converter with integrated 200-mΩ high-side MOSFET, Eco-mode™ pulse-skipping control, and 116-μA no-load quiescent current - designed for infotainment power rails in 12-V/24-V vehicle systems.
For engineers reviewing the TPS57140QDRCRQ1 datasheet, TPS57140QDRCRQ1 pinout, TPS57140QDRCRQ1 application, or TPS57140QDRCRQ1 equivalent, key selection criteria include input voltage range (3.5–42 V), adjustable switching frequency (100 kHz–2.5 MHz), power-good monitoring (92–109% VSENSE window), thermal shutdown (182°C), and VSON-10 package compatibility with automotive PCB layout constraints.
Technical Context
The TPS57140QDRCRQ1 implements constant-frequency peak-current-mode control with internal slope compensation to prevent subharmonic oscillation across full duty-cycle range. Its Eco-mode™ enables pulse-skipping at light loads while maintaining regulation via a 0.8-V internal reference and transconductance error amplifier (97 μ℧ typical).
It integrates boot UVLO protection (2.1 V BOOT–PH threshold), frequency foldback during overload, and programmable undervoltage lockout via EN pin resistive divider. The open-drain PWRGD output asserts low when VSENSE falls below 92% or exceeds 109% of nominal, supporting system-level power sequencing and fault detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.5 V to 42 V - supports direct connection to automotive battery rails including cold-crank (≥4.5 V) and load-dump (≤42 V) conditions. |
| Output Current | 1.5 A continuous - sufficient for powering DSPs, FPGAs, and display controllers in ADAS and infotainment modules. |
| Switching Frequency | 100 kHz to 2.5 MHz - enables optimization of inductor size and efficiency; RT/CLK pin supports external clock synchronization. |
| Quiescent Current | 116 μA (operating, no load) - extends battery life in always-on automotive subsystems such as telematics and camera modules. |
| Reference Voltage | 0.792 V to 0.808 V (±1%) - ensures precise output regulation accuracy for sensitive analog and digital loads. |
| High-Side RDS(on) | 200 mΩ @ VIN = 12 V, BOOT–PH = 6 V - reduces conduction loss and thermal stress in compact VSON-10 footprint. |
| Power-Good Threshold | 92% to 109% of VSENSE - provides robust startup validation and overvoltage fault detection without external comparators. |
| Thermal Shutdown | 182°C junction temperature - protects against sustained overload or poor heatsinking in sealed automotive enclosures. |
Pinout & Package
The TPS57140QDRCRQ1 is housed in a thermally enhanced 10-pin VSON package (3.0 mm × 3.0 mm) with exposed thermal pad connected to GND. This package delivers RθJB = 20.6°C/W and supports high-power-density automotive layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BOOT | Bootstrap supply node | Connects to external 0.1-μF ceramic capacitor between BOOT and PH; supplies gate drive for integrated high-side MOSFET. |
| VIN | Main input supply | Accepts 3.5–42 V; powers internal circuitry and high-side driver; requires ≥3 μF local input capacitance. |
| GND | Power and signal ground | Common return path; must be electrically tied to exposed thermal pad for thermal and electrical performance. |
| PH | Switch node | Source of internal high-side MOSFET; connects to inductor and bootstrap capacitor; carries high di/dt switching current. |
| VSENSE | Feedback input | Inverting input of transconductance error amplifier; used with external resistor divider to set output voltage (min 0.8 V). |
| COMP | Error amplifier output | Drives current-mode PWM comparator; connects to RC compensation network for loop stability. |
| EN | Enable / UVLO control | Pull ≤1.2 V to disable; internal pullup allows resistor-divider adjustment of input UVLO threshold and hysteresis. |
| RT/CLK | Frequency setting / sync input | Resistor-to-ground sets fSW; external clock edges above 1.9 V trigger PLL sync mode for EMI reduction. |
| SS/TR | Slow-start / tracking | Capacitor sets soft-start time; voltage override enables power sequencing or voltage tracking with other rails. |
| PWRGD | Open-drain power-good | Asserts low if output deviates >8% below or >9% above nominal; requires external pullup for system reset signaling. |
Key Features
| Feature | Design Value |
|---|---|
| Eco-mode™ pulse-skipping | Reduces no-load current to 116 μA while maintaining regulation - critical for low-power standby modes in automotive ECUs. |
| Integrated boot recharge diode | Eliminates external diode; simplifies layout and improves reliability in space-constrained VSON-10 automotive modules. |
| Adjustable UVLO with hysteresis | EN pin supports resistor-divider configuration to tailor start/stop behavior for specific battery profiles (e.g., 12-V vs 24-V systems). |
| Overvoltage fault recovery | OV comparator disables high-side switch until output drops below 107%; prevents latch-up during transient overvoltage events. |
| Frequency foldback | Reduces fSW during overload or startup to limit peak inductor current and improve fault tolerance. |
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C operation with HBM ±2 kV and CDM ±500 V ESD robustness - meets automotive functional safety requirements. |
Applications
| Infotainment Power Supply | ADAS Camera Module |
|---|---|
|
Use Scenario: Powers SoC, display interface, and audio codec in automotive head units with variable battery input (9–16 V). IC Role / Device Role / Timing Role: Primary buck regulator delivering stable 3.3 V or 5 V from unregulated 12-V rail; manages inrush via SS/TR pin. Use Value: Eco-mode™ maintains <120 μA quiescent current during display-off states, extending ignition-off runtime by >20% versus standard PWM converters. |
Use Scenario: Supplies image sensor and ISP in rear-view or surround-view camera modules operating in engine-bay environments. IC Role / Device Role / Timing Role: Step-down regulator with thermal shutdown (182°C) and wide VIN range (3.5–42 V) for hot/cold crank resilience. Use Value: VSON-10 package with 20.6°C/W RθJB enables direct PCB copper pour cooling - sustains 1.5 A output at 105°C ambient without derating. |
| Body Control Unit (BCU) | Wireless Charging Transmitter |
|
Use Scenario: Generates 5 V for HVAC control MCU and CAN transceiver in body electronics modules exposed to vibration and temperature cycling. IC Role / Device Role / Timing Role: Automotive-grade DC-DC with AEC-Q100 qualification and open-drain PWRGD for system-level power sequencing. Use Value: PWRGD window (92–109% VSENSE) validates rail integrity before enabling downstream CAN bus - eliminates false wakeups during brownouts. |
Use Scenario: Provides regulated 12 V input to Qi-compliant wireless charging transmitter ICs in center console applications. IC Role / Device Role / Timing Role: High-efficiency buck stage preceding resonant inverter; supports dynamic load steps up to 1.5 A during coil activation. Use Value: Current-mode control with slope compensation ensures stable operation under rapid load transients (0→1.5 A in <10 μs), preventing output droop. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5140QQRGERQ1 | 42-V, 2-A dual-channel controller with external MOSFETs; higher current capability but requires more external components. | Used where >1.5 A output or dual-rail generation is required; not suitable for space-constrained single-rail designs. | Select LM5140QQRGERQ1 only when higher output current or channel redundancy is needed; TPS57140QDRCRQ1 offers lower BOM count and smaller footprint. |
| TPS54160AQDGQRQ1 | 60-V, 1.5-A buck converter with 110-μA IQ; wider VIN range but slower max fSW (1.2 MHz) and no PWRGD output. | Suitable for 48-V industrial systems; lacks power-good signaling and automotive-grade PWRGD timing specs. | Choose TPS54160AQDGQRQ1 for 48-V input compatibility; TPS57140QDRCRQ1 is preferred for automotive infotainment due to integrated PWRGD and AEC-Q100 PWRGD timing validation. |
Compared with LM5140QQRGERQ1 and TPS54160AQDGQRQ1, the TPS57140QDRCRQ1 uniquely combines AEC-Q100 Grade 1 qualification, integrated PWRGD with defined 92–109% threshold window, and VSON-10 thermal performance (RθJB = 20.6°C/W) - making it optimal for cost-sensitive, space-limited automotive buck applications requiring verified power sequencing.
Availability
TPS57140QDRCRQ1 is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, and body control units requiring stable component supply with full AEC-Q100 traceability and long-term production support.
Supply support for TPS57140QDRCRQ1 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 and embedded processing technologies, with deep expertise in automotive power management and functional safety design.
The TPS57140-Q1 belongs to TI's automotive-qualified DC-DC converter product line, engineered specifically for harsh-environment vehicle subsystems demanding high reliability, low quiescent current, and AEC-Q100 compliance.
FAQ
What is the maximum input voltage rating for the TPS57140QDRCRQ1?
The TPS57140QDRCRQ1 has an absolute maximum input voltage rating of 47 V on the VIN pin, with recommended operating range from 3.5 V to 42 V. This allows direct connection to automotive battery systems, including transient conditions like load dump (≤42 V) and cold-crank (≥4.5 V). Operation beyond 42 V is not recommended for sustained use per datasheet specifications.
Does the TPS57140QDRCRQ1 support external clock synchronization?
Yes, the TPS57140QDRCRQ1 supports external clock synchronization via the RT/CLK pin. When driven above 1.9 V with a clean clock signal, the internal PLL engages and synchronizes switching to the external clock edge. This feature reduces EMI in noise-sensitive automotive applications and enables multi-rail phase alignment without additional timing circuitry.
How does the Eco-mode™ function work in the TPS57140QDRCRQ1?
Eco-mode™ in the TPS57140QDRCRQ1 enables pulse-skipping at light loads to maintain regulation while reducing switching losses. It activates automatically when load current drops below ~100 mA, lowering quiescent current to 116 μA. The device resumes fixed-frequency PWM when load increases, ensuring seamless transition without output voltage disturbance or audible noise.
What is the purpose of the SS/TR pin on the TPS57140QDRCRQ1?
The SS/TR pin on the TPS57140QDRCRQ1 serves dual functions: slow-start and tracking. Connecting a capacitor sets output voltage ramp time to limit inrush current; applying an external voltage enables tracking of another power rail during startup. During faults, the pin discharges to ensure repeatable restart behavior - critical for automotive systems requiring deterministic power-up sequences.
Is the TPS57140QDRCRQ1 pin-compatible with other devices in the TPS571xx-Q1 family?
No, the TPS57140QDRCRQ1 is not pin-compatible with other TPS571xx-Q1 variants such as TPS57160QDRCRQ1 or TPS57180QDRCRQ1. While all share the same VSON-10 (DRC) package outline, pin functions differ - notably COMP, SS/TR, and RT/CLK assignments vary across the family. Always verify pin mapping using the specific device's datasheet before board reuse.
TPS57140QDRCRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Eco-Mode™
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3.5V
- Voltage - Input (Max):
- 42V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 39V
- Current - Output:
- 1.5A
- Frequency - Switching:
- 100kHz ~ 2.5MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSON (3x3)
TPS57140QDRCRQ1 FAQ
1.How can I place an order for TPS57140QDRCRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS57140QDRCRQ1 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 TPS57140QDRCRQ1 reliable?
The price and inventory of TPS57140QDRCRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS57140QDRCRQ1 is usually 5 days.
3.What payment methods are accepted for TPS57140QDRCRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS57140QDRCRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS57140QDRCRQ1?
TPS57140QDRCRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS57140QDRCRQ1 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 TPS57140QDRCRQ1?
For technical support, including TPS57140QDRCRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS57140QDRCRQ1 requirements.
6.How does Aetrix verify that TPS57140QDRCRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS57140QDRCRQ1 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 TPS57140QDRCRQ1 meets industry standards.
7.What is the process for return or replacement of TPS57140QDRCRQ1?
All TPS57140QDRCRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS57140QDRCRQ1, 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 TPS57140QDRCRQ1 part is unused and in its original packaging.
Return procedure for TPS57140QDRCRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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