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Texas Instruments TPS57140QDGQRQ1
- Part No.:
- TPS57140QDGQRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 10-PowerTFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS57140QDGQRQ1.pdf
- Description:
- IC REG BUCK ADJ 1.5A 10HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:9,955
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Product details
Overview
TPS57140QDGQRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-qualified 42-V input, 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. It delivers regulated 3.3-V output at 1.5-A continuous load with 90% peak efficiency at 12-V input and 1.2-MHz switching frequency, targeting infotainment power rails and ADAS camera modules.
For engineers reviewing the TPS57140QDGQRQ1 datasheet, TPS57140QDGQRQ1 pinout, TPS57140QDGQRQ1 application, or TPS57140QDGQRQ1 equivalent, key selection criteria include its 3.5–42-V wide input range, adjustable UVLO via EN pin, open-drain PWRGD with ±2% hysteresis, RT/CLK synchronization capability, and thermally enhanced MSOP-PowerPAD™ package for automotive under-hood environments.
Technical Context
The TPS57140QDGQRQ1 implements constant-frequency peak-current-mode control with internal slope compensation to prevent subharmonic oscillation across 0–100% duty cycle. Its error amplifier features 97-μ℧ transconductance and 2.7-MHz bandwidth, driving COMP for external Type II/III compensation.
It integrates a boot UVLO circuit that disables the high-side MOSFET when BOOT–PH falls below 2.1 V, enabling >99% effective duty cycle in dropout while ensuring reliable gate drive refresh. The PWRGD comparator asserts low when VSENSE drops below 92% or rises above 109% of nominal, with deassertion hysteresis between 94% and 107%.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.5 V to 42 V - supports 12-V and 24-V automotive battery systems including cold-crank (4.5 V) and load-dump (40 V) transients. |
| Output Current | 1.5 A continuous - sufficient for powering DSPs, image sensors, and microcontrollers in ADAS and infotainment subsystems. |
| Quiescent Current | 116 μA at no load - enables always-on functionality in body electronics without excessive battery drain. |
| Switching Frequency | 100 kHz to 2.5 MHz - adjustable via RT resistor or external clock on RT/CLK pin for EMI optimization and compact magnetics selection. |
| Reference Voltage | 0.8 V ±1% - sets minimum output voltage; used with external resistor divider for precise 3.3-V, 5-V, or custom rail generation. |
| Power-Good Threshold | 92% to 109% of VREF - provides robust undervoltage/overvoltage detection with 2% hysteresis for system sequencing and fault reporting. |
| Shutdown Current | 1.5 μA at 25°C - ensures ultra-low leakage during vehicle sleep mode to meet ISO 16750-2 quiescent current requirements. |
| Thermal Protection | Thermal shutdown at 182°C - latches off until junction cools, preventing permanent damage during sustained overload or poor heatsinking. |
Pinout & Package
The TPS57140QDGQRQ1 is housed in a 10-pin MSOP-PowerPAD™ (DGQ) package measuring 3.0 mm × 3.0 mm with exposed thermal pad soldered to PCB ground for enhanced thermal performance (RθJB = 38.4°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BOOT | Bootstrap supply node | Connects to 0.1-μF ceramic capacitor between BOOT and PH; supplies gate drive voltage for integrated high-side MOSFET. |
| VIN | Main input supply | Accepts 3.5–42 V; requires ≥3-μF input capacitance near pin for stability and transient response. |
| GND | Power and signal reference | Must be connected to PCB ground plane; thermal pad must be electrically tied to GND for thermal and electrical integrity. |
| PH | Power switch source node | Drives external inductor; connects to BOOT capacitor; voltage swings between VIN and GND during switching. |
| VSENSE | Feedback input | Inverting input of transconductance error amplifier; monitors output via resistor divider to regulate against 0.8-V internal reference. |
| COMP | Compensation node | Error amplifier output; connects to Type II/III RC network for loop stability and transient response tuning. |
| EN | Enable / UVLO control | Pulled up internally; float to enable; pull below 1.25 V to disable; configure UVLO threshold and hysteresis with two resistors. |
| RT/CLK | Frequency setting / sync input | Set switching frequency with resistor to GND; accept external clock (300–2200 kHz) by pulling above 2.2 V to enter PLL sync mode. |
| SS/TR | Slow-start / tracking | Controls output ramp time via capacitor; supports power sequencing by connecting to another regulator's output or reference. |
| PWRGD | Open-drain power-good | Asserts low if output deviates >8% from nominal; requires external pullup resistor to system rail for logic-level signaling. |
Key Features
| Feature | Design Value |
|---|---|
| Eco-mode™ Pulse-Skipping | Reduces light-load quiescent current to 116 μA by skipping switching cycles while maintaining regulation-critical for automotive standby power budgets. |
| Integrated Boot Diode | Eliminates need for external bootstrap diode, reducing BOM count and PCB area while improving reliability in high-vibration automotive environments. |
| Adjustable UVLO with Hysteresis | EN pin allows user-defined input undervoltage lockout using two resistors, enabling customized start/stop behavior for battery voltage monitoring and system wake-up logic. |
| Frequency Synchronization | RT/CLK pin accepts external clock signals (300–2200 kHz), allowing EMI reduction through spread-spectrum alignment with master system clock in multi-rail power architectures. |
| Overvoltage Fault Recovery | When PWRGD detects overvoltage (>109%), high-side MOSFET is masked until output falls below 107%, preventing latch-up and enabling automatic recovery without reset. |
| Thermal Foldback Protection | Reduces switching frequency during overtemperature events to limit power dissipation, extending safe operating time before thermal shutdown activates at 182°C. |
Applications
| Automotive Infotainment Power | ADAS Camera Module Supply |
|---|---|
Use Scenario: Powers audio DSP, display controller, and touch interface in head-unit systems with 12-V battery input and strict EMC requirements. IC Role / Device Role / Timing Role: Primary buck regulator delivering stable 3.3-V/1.5-A rail; synchronizes switching frequency to system clock via RT/CLK to minimize conducted EMI. Use Value: Eco-mode™ maintains <120-μA quiescent current during display-off state, meeting OEM requirements for <100-μA system sleep current. | Use Scenario: Supplies image sensor and ISP in rear-view camera module exposed to under-hood temperature extremes (–40°C to +125°C). IC Role / Device Role / Timing Role: High-reliability step-down converter with AEC-Q100 Grade 1 qualification; uses PWRGD to signal sensor initialization readiness to host MCU. Use Value: 42-V max input withstands load-dump transients; thermal shutdown and foldback protect against prolonged exposure to ambient >105°C. |
| Body Control Unit (BCU) Rail | HVAC Blower Motor Driver Bias |
Use Scenario: Generates 5-V auxiliary rail for CAN transceivers, LIN nodes, and door module microcontrollers in body electronics networks. IC Role / Device Role / Timing Role: Secondary regulated supply derived from main 12-V bus; configured with SS/TR for controlled power-up sequencing relative to main MCU. Use Value: Adjustable UVLO prevents brownout resets during cranking (input dips to 6 V); 1.5-A rating supports simultaneous activation of multiple solenoids and LEDs. | Use Scenario: Provides isolated 12-V bias supply for half-bridge gate drivers controlling HVAC blower motor in electric vehicles. IC Role / Device Role / Timing Role: Pre-regulator stepping down 400-V traction battery-derived 48-V intermediate rail to clean 12-V driver supply. Use Value: Wide 3.5–42-V input accommodates variable intermediate bus; high-side MOSFET RDS(on) of 200 mΩ minimizes conduction loss at 1.5-A bias current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM61480QRTWRQ1 | Higher 3.5-A output current, 2.2-MHz max fSW, lower 15-μA IQ, but larger 16-pin WQFN package and no Eco-mode™ pulse-skipping. | Better suited for higher-current ADAS radar modules; less optimal for ultra-low-IQ infotainment standby due to different light-load control scheme. | Select LM61480QRTWRQ1 when >2-A output or tighter EMI control via spread-spectrum is required; retain TPS57140QDGQRQ1 for cost-sensitive, space-constrained 1.5-A designs with strict quiescent current limits. |
| MPQ4420AGQB-Z | 2-A rating, 3.5–36-V input, 17-μA IQ, but not AEC-Q100 qualified; uses valley-current mode instead of peak-current mode. | Applicable in industrial or commercial 24-V systems where automotive qualification is unnecessary; lacks PWRGD and UVLO adjustability. | Choose MPQ4420AGQB-Z for non-automotive 24-V applications needing higher current and lower IQ; use TPS57140QDGQRQ1 where AEC-Q100 Grade 1, PWRGD signaling, and EN-based UVLO are mandatory. |
Compared with LM61480QRTWRQ1 and MPQ4420AGQB-Z, the TPS57140QDGQRQ1 uniquely balances AEC-Q100 compliance, 116-μA Eco-mode™ quiescent current, and full-feature set (PWRGD, SS/TR, RT/CLK sync) in a compact 3-mm MSOP-PowerPAD™ package-making it optimal for cost- and space-constrained automotive subsystems requiring robust, low-IQ regulation.
Availability
TPS57140QDGQRQ1 is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, and body control unit power supplies requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPS57140QDGQRQ1 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 power management ICs, with deep expertise in automotive-grade reliability and functional safety.
The TPS57140-Q1 belongs to TI's automotive-qualified DC-DC buck converter product line, designed specifically for demanding automotive power rails-including infotainment, ADAS, and body electronics-where AEC-Q100 Grade 1 operation, low quiescent current, and robust fault protection are essential.
FAQ
What is the maximum input voltage rating for the TPS57140QDGQRQ1?
The TPS57140QDGQRQ1 has an absolute maximum input voltage rating of 47 V, with recommended operating range from 3.5 V to 42 V. This allows it to safely handle automotive load-dump transients up to 40 V while maintaining regulation, and supports both 12-V and 24-V battery architectures. Operation beyond 42 V is not recommended for continuous use per datasheet specifications.
Does the TPS57140QDGQRQ1 require an external bootstrap diode?
No, the TPS57140QDGQRQ1 does not require an external bootstrap diode. It integrates an internal boot recharge circuit that eliminates the need for an external diode, reducing component count and improving reliability in vibration-prone automotive applications. A 0.1-μF ceramic capacitor between BOOT and PH pins is still required for proper gate drive operation.
How is power-good signaling implemented on the TPS57140QDGQRQ1?
The TPS57140QDGQRQ1 implements power-good signaling via the open-drain PWRGD pin, which asserts low when VSENSE falls below 92% or rises above 109% of the nominal output voltage. It deasserts (goes high-impedance) when VSENSE is between 94% and 107%, requiring an external pullup resistor. This provides precise undervoltage and overvoltage detection with built-in hysteresis for stable system sequencing.
Can the TPS57140QDGQRQ1 synchronize to an external clock?
Yes, the TPS57140QDGQRQ1 can synchronize to an external clock via the RT/CLK pin. When pulled above 2.2 V, the internal timing amplifier disables and the pin becomes a high-impedance PLL input accepting clock edges from 300 kHz to 2.2 MHz. This enables EMI reduction through frequency alignment in multi-converter systems, and automatic reversion to resistor-set mode if the external clock stops.
What thermal package options are available for the TPS57140QDGQRQ1?
TPS57140QDGQRQ1 is offered in two thermally enhanced packages: the 10-pin MSOP-PowerPAD™ (DGQ) and the 10-pin VSON (DRC), both 3.0 mm × 3.0 mm. The DGQ variant used in TPS57140QDGQRQ1 features an exposed thermal pad soldered to PCB ground, achieving RθJB = 38.4°C/W-critical for automotive under-hood operation where ambient temperatures reach 125°C.
TPS57140QDGQRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Eco-Mode™
- Package/Case:
- 10-PowerTFSOP, 10-MSOP (0.118", 3.00mm Width)
- 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-HVSSOP
TPS57140QDGQRQ1 FAQ
1.How can I place an order for TPS57140QDGQRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS57140QDGQRQ1 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 TPS57140QDGQRQ1 reliable?
The price and inventory of TPS57140QDGQRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS57140QDGQRQ1 is usually 5 days.
3.What payment methods are accepted for TPS57140QDGQRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS57140QDGQRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS57140QDGQRQ1?
TPS57140QDGQRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS57140QDGQRQ1 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 TPS57140QDGQRQ1?
For technical support, including TPS57140QDGQRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS57140QDGQRQ1 requirements.
6.How does Aetrix verify that TPS57140QDGQRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS57140QDGQRQ1 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 TPS57140QDGQRQ1 meets industry standards.
7.What is the process for return or replacement of TPS57140QDGQRQ1?
All TPS57140QDGQRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS57140QDGQRQ1, 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 TPS57140QDGQRQ1 part is unused and in its original packaging.
Return procedure for TPS57140QDGQRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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