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Texas Instruments TPS74511PQWDRVRQ1
- Part No.:
- TPS74511PQWDRVRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
TPS74511PQWDRVRQ1.pdf
- Description:
- IC REG LINEAR 1.1V 500MA 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:8,980
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Product details
Overview
TPS74511PQWDRVRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive ultra-low-dropout (LDO) regulator delivering 500 mA with power-good monitoring, fixed 1.1-V output, 2-mm × 2-mm wettable-flank WSON-6 package, ±0.85% output accuracy at 25°C, and 160 mV max dropout at 500 mA - used in automotive cluster displays and telematics control units.
For engineers reviewing the TPS74511PQWDRVRQ1 datasheet, TPS74511PQWDRVRQ1 pinout, TPS74511PQWDRVRQ1 application, or TPS74511PQWDRVRQ1 equivalent, key selection criteria include its wettable-flank WSON-6 footprint for optical solder inspection, automotive-grade thermal performance (–40°C to +125°C ambient), integrated power-good with push-pull/open-drain options, and stable operation with ≥1-µF ceramic output capacitance.
Technical Context
The TPS74511PQWDRVRQ1 implements a precision band-gap reference and error amplifier to achieve ±0.85% output accuracy at 25°C and ±1.5% over full temperature range. Its low-quiescent-current architecture draws only 25 µA typical in active mode and 1.5 µA in shutdown, enabling always-on subsystems.
It features internal foldback current limiting, thermal shutdown at 170°C, undervoltage lockout (UVLO) with 1.34 V rising threshold and 40 mV hysteresis, and fast startup time of 200–650 µs. The power-good output monitors feedback voltage with 92% VOUT high threshold and 90% VOUT low threshold, supporting supply sequencing in multi-rail systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output current | 500 mA maximum - supports power delivery to SoC I/O rails or camera sensor interfaces without external boost. |
| Dropout voltage | 160 mV max at 500 mA (for 3.3-V output) - enables regulation from 1.5-V input down to 1.1-V output with margin. |
| Output accuracy | ±0.85% at 25°C, ±1.5% over –40°C to +150°C junction - ensures reliable logic-level compliance for automotive microcontrollers. |
| PSRR | 45 dB at 100 kHz - suppresses switching noise from upstream DC/DC converters feeding sensitive analog or RF circuitry. |
| Quiescent current | 25 µA typical - minimizes battery drain in ignition-off vehicle modules requiring persistent monitoring. |
| Input voltage range | 1.5 V to 6.0 V - compatible with 3.3-V, 5-V, and battery-backed 12-V (via pre-regulator) supply domains. |
| Power-good output | Push-pull or open-drain option - enables direct interfacing with MCU reset inputs or FPGA configuration sequencers without pull-up resistors (push-pull). |
Pinout & Package
TPS74511PQWDRVRQ1 uses a 6-pin wettable-flank WSON package (2.00 mm × 2.00 mm body, 0.75 mm height), optimized for automated optical inspection (AOI) of solder joints. Thermal pad is internally connected to GND and must be soldered to PCB ground plane for thermal performance (RθJA = 80.3°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Regulated output | Delivers stable 1.1-V supply; requires ≥1-µF ceramic capacitor to ground for stability and transient response. |
| 2 - FB | Feedback input | Not connected in fixed-output variant; tied internally to set 1.1-V output - no external resistor network needed. |
| 3 - GND | Ground reference | Primary return path for load current and internal bias; connects electrically to thermal pad for enhanced heat dissipation. |
| 4 - EN | Enable control | Active-high logic input; >1.0 V enables regulator, <0.3 V disables - supports system-level power sequencing and sleep-mode control. |
| 5 - PG | Power-good indicator | Open-drain or push-pull output signaling VOUT ≥92% nominal; used for reset assertion or downstream enable coordination. |
| 6 - IN | Input supply | Accepts 1.5–6.0 V; requires ≥1-µF ceramic capacitor to ground near pin for input impedance reduction and transient immunity. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation - meets automotive infotainment and ADAS environmental requirements. |
| Wettable-flank WSON-6 package | Enables AOI-compatible solder joint inspection - reduces field failure risk in high-reliability automotive assembly lines. |
| Ultra-low dropout (160 mV max) | Permits efficient post-regulation from intermediate rails (e.g., 1.8-V or 2.5-V sources) while maintaining 1.1-V output under full load. |
| Active output discharge | Internally discharges OUT capacitor when disabled - prevents floating voltage on powered-down rails and avoids latch-up in downstream logic. |
| Functional safety documentation support | TI provides FIT rate data, failure mode analysis, and diagnostic coverage reports - accelerates ISO 26262 ASIL-B system certification. |
Applications
| Automotive Cluster Displays | Telematics Control Units |
|---|---|
Use Scenario: Powering display driver ICs and touch controller in digital instrument clusters with strict EMI and thermal constraints. IC Role / Device Role / Timing Role: Primary 1.1-V LDO supplying core logic voltage for display SoCs requiring tight regulation and fast load transient response. Use Value: 45 dB PSRR at 100 kHz attenuates noise from adjacent buck converters, preventing visual artifacts; 160-mV dropout enables use of lower-input intermediate rails to reduce system power loss. | Use Scenario: Regulating power to cellular modem baseband processors and GNSS receivers in vehicle connectivity modules. IC Role / Device Role / Timing Role: Fixed 1.1-V supply with power-good signaling for synchronized boot sequencing between modem, MCU, and RF front-end. Use Value: Push-pull PG output directly drives MCU reset pins without external pull-up, reducing BOM count; ±0.85% accuracy ensures reliable I/O voltage compliance across temperature. |
| Front/Rear Cameras | Medium-Range Radar Modules |
Use Scenario: Delivering clean, low-noise 1.1-V supply to image signal processors (ISPs) in ADAS vision systems. IC Role / Device Role / Timing Role: Low-noise post-regulator placed after primary DC/DC to meet ISP analog core voltage tolerance and jitter requirements. Use Value: 53 µVRMS output noise (10 Hz–100 kHz) minimizes clock jitter in pixel sampling circuits; wettable-flank WSON enables AOI for zero-defect camera module manufacturing. | Use Scenario: Providing regulated 1.1-V supply to radar transceiver ASICs operating in engine bay environments with wide temperature swings. IC Role / Device Role / Timing Role: Automotive-grade LDO with thermal shutdown (170°C) and UVLO protecting radar SoC during cold cranking or overheating events. Use Value: RθJA = 80.3°C/W and –40°C to +125°C ambient rating ensure stable operation under hood temperatures; functional safety documentation supports ASIL-B radar system validation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS74611PQWDRVRQ1 | Same 1.1-V fixed output, but adds feed-forward capacitor (CFF) support for improved PSRR above 100 kHz; higher cost and layout complexity. | Better suited for radar or high-speed serial interface power where >100-kHz noise rejection is critical. | Select TPS74611PQWDRVRQ1 only if PSRR >45 dB at 1 MHz is required; otherwise TPS74511PQWDRVRQ1 offers simpler design and lower cost. |
| TLV76711QWDRVRQ1 | Lower IQ (2.5 µA vs 25 µA), but reduced output current (300 mA vs 500 mA) and no power-good output. | Applicable in low-power always-on nodes (e.g., CAN wake-up receivers), not suitable for high-current display or modem loads. | Choose TLV76711QWDRVRQ1 for ultra-low-IQ battery backup scenarios; avoid for 500-mA loads or systems requiring supply sequencing. |
Compared with TPS74611PQWDRVRQ1, the TPS74511PQWDRVRQ1 trades CFF-enhanced high-frequency PSRR for simpler layout and lower cost; versus TLV76711QWDRVRQ1, it delivers 67% more output current and adds power-good functionality essential for automotive boot integrity.
Availability
TPS74511PQWDRVRQ1 is available at Aetrix Electronics and suitable for automotive cluster displays, telematics control units, front/rear cameras, and medium-range radar modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPS74511PQWDRVRQ1 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 company specializing in analog and embedded processing technologies, with leadership in automotive, industrial, and communications markets.
The TPS745-Q1 product line delivers AEC-Q100 qualified LDOs for automotive infotainment, ADAS, and body electronics - designed to replace legacy regulators with enhanced PSRR, accuracy, and wettable-flank packaging for zero-defect manufacturing.
FAQ
What is the output voltage of the TPS74511PQWDRVRQ1?
The TPS74511PQWDRVRQ1 is a fixed-output LDO regulator with a nominal output voltage of 1.1 V. This value is factory-trimmed and does not require external feedback resistors. Output accuracy is ±0.85% at 25°C and ±1.5% over the full operating junction temperature range of –40°C to +150°C, ensuring consistent performance in automotive environments.
Does the TPS74511PQWDRVRQ1 support power-good functionality?
Yes, the TPS74511PQWDRVRQ1 includes a dedicated power-good (PG) output that monitors the regulated output voltage. It asserts high when VOUT reaches ≥92% of nominal (1.012 V) and deasserts low when VOUT falls ≤90% (0.99 V), with 2% hysteresis. The PG pin is configurable as either open-drain or push-pull - the latter eliminates need for external pull-up resistors in MCU reset circuits.
What package type does the TPS74511PQWDRVRQ1 use?
The TPS74511PQWDRVRQ1 uses a 6-pin wettable-flank WSON package measuring 2.00 mm × 2.00 mm with 0.75 mm height. Its exposed thermal pad is electrically connected to GND and must be soldered to the PCB ground plane. This package enables automated optical inspection (AOI) of solder joints - a critical requirement for zero-defect automotive electronics manufacturing.
What is the maximum dropout voltage of the TPS74511PQWDRVRQ1 at full load?
The maximum dropout voltage of the TPS74511PQWDRVRQ1 is 160 mV at 500 mA output current and 3.3-V nominal output. For its fixed 1.1-V output, the datasheet specifies dropout values per output voltage bin; at 1.1 V, typical dropout is ~115 mV and maximum remains within 160 mV under worst-case process/temperature conditions - enabling reliable regulation from as low as 1.26 V input.
Is the TPS74511PQWDRVRQ1 qualified for automotive applications?
Yes, the TPS74511PQWDRVRQ1 is AEC-Q100 qualified for automotive applications, specifically Grade 1 (–40°C to +125°C ambient operating temperature). It also supports junction temperatures up to +150°C and includes automotive-specific protections: undervoltage lockout (UVLO), thermal shutdown at 170°C, and integrated current limiting. Functional safety documentation is available to support ISO 26262 system-level development.
TPS74511PQWDRVRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 1.1V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.42V @ 500mA
- Current - Output:
- 500mA
- Current - Quiescent (Iq):
- 36 µA
- Current - Supply (Max):
- -
- PSRR:
- 57dB ~ 35dB (1kHz ~ 1MHz)
- Control Features:
- Enable, Power Good
- Protection Features:
- Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WSON (2x2)
TPS74511PQWDRVRQ1 FAQ
1.How can I place an order for TPS74511PQWDRVRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS74511PQWDRVRQ1 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 TPS74511PQWDRVRQ1 reliable?
The price and inventory of TPS74511PQWDRVRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS74511PQWDRVRQ1 is usually 5 days.
3.What payment methods are accepted for TPS74511PQWDRVRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS74511PQWDRVRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS74511PQWDRVRQ1?
TPS74511PQWDRVRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS74511PQWDRVRQ1 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 TPS74511PQWDRVRQ1?
For technical support, including TPS74511PQWDRVRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS74511PQWDRVRQ1 requirements.
6.How does Aetrix verify that TPS74511PQWDRVRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS74511PQWDRVRQ1 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 TPS74511PQWDRVRQ1 meets industry standards.
7.What is the process for return or replacement of TPS74511PQWDRVRQ1?
All TPS74511PQWDRVRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS74511PQWDRVRQ1, 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 TPS74511PQWDRVRQ1 part is unused and in its original packaging.
Return procedure for TPS74511PQWDRVRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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