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Texas Instruments TPS74617PQWDRBRQ1
- Part No.:
- TPS74617PQWDRBRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 8-VDFN Exposed Pad
- Datasheet:
-
TPS74617PQWDRBRQ1.pdf
- Description:
- IC POWER
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
TPS74617PQWDRBRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-qualified 1A ultra-low-dropout linear regulator with power-good (PG) output, fixed 1.7V output voltage, and wettable-flank 3mm × 3mm VSON-8 package. It operates from 1.5V to 6.0V input, delivers ±1.5% output accuracy over –40°C to +150°C, achieves 265mV max dropout at 1A (for 3.3VOUT), and supports fast load transient response in ADAS camera and cluster display power rails.
For engineers reviewing the TPS74617PQWDRBRQ1 datasheet, TPS74617PQWDRBRQ1 pinout, TPS74617PQWDRBRQ1 application, or TPS74617PQWDRBRQ1 equivalent, key selection criteria include automotive-grade thermal robustness (RθJA = 55.5°C/W), open-drain or push-pull PG timing options, low 25μA quiescent current, stability with ≥1µF ceramic output capacitor, and functional safety documentation support.
Technical Context
The TPS74617PQWDRBRQ1 implements a precision band-gap reference and error amplifier for high DC accuracy, integrated foldback current limiting to reduce thermal stress during short-circuit events, and undervoltage lockout (UVLO) with 1.21–1.47V rising threshold and 40mV hysteresis. Its internal architecture enables sequencing control via EN and PG pins across multi-rail automotive systems.
It features dual PG configurations-open-drain (requiring external pull-up) or push-pull (supported for VOUT ≥ 1.0V)-with programmable delay times (e.g., 4.5–5.5ms rising delay for 'B' version), and supports both fixed-output and adjustable-output variants using external feedback resistors on the FB pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 1A continuous - sufficient to power SoC cores or image sensors in automotive cameras without derating at TJ ≤ 125°C. |
| Input Voltage Range | 1.5V to 6.0V - compatible with 3.3V, 5V, and battery-backed pre-regulated rails in head units and radar modules. |
| Output Accuracy | ±1.5% max over –40°C to +150°C - ensures stable voltage delivery to sensitive analog/RF blocks under extreme ambient conditions. |
| Dropout Voltage | 265mV max at 1A (3.3VOUT) - enables efficient regulation from low-headroom sources like buck converter outputs. |
| PSRR | 38dB at 100kHz - suppresses switching noise from upstream DC/DC converters in noise-sensitive camera sensor supplies. |
| Quiescent Current | 25μA typical - minimizes standby power loss in always-on telematics and domain controller applications. |
| Thermal Resistance | RθJA = 55.5°C/W (DRB package) - allows 1A operation up to +125°C ambient with standard PCB copper area. |
Pinout & Package
TPS74617PQWDRBRQ1 uses the DRB (wettable flank VSON-8) package: 3mm × 3mm body with exposed thermal pad electrically connected to GND, enabling optical solder-joint inspection and improved thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT | Regulated output | Delivers stable 1.7V to load; requires ≥1µF ceramic capacitor to ground for stability and transient response. |
| 2: NC | No internal connection | Must be grounded for optimal thermal dissipation; no electrical function. |
| 3: NC | No internal connection | Must be grounded for optimal thermal dissipation; no electrical function. |
| 4: GND | Ground reference | Primary return path for load current and internal circuitry; connects to thermal pad. |
| 5: EN | Enable control input | Active-high logic; >1.0V enables regulator, <0.3V disables it with 1μA shutdown current. |
| 6: PG | Power-good status output | Open-drain or push-pull output indicating VOUT ≥ 92% of nominal; used for supply sequencing and fault detection. |
| 7: NC | No internal connection | Must be grounded for optimal thermal dissipation; no electrical function. |
| 8: IN | Input supply | Accepts 1.5–6.0V input; requires ≥1µF ceramic capacitor to GND near pin for EMI suppression and transient response. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation - meets automotive reliability requirements for front/rear camera modules. |
| Wettable flank VSON-8 package | Enables automated optical inspection (AOI) of solder joints - critical for zero-defect manufacturing in automotive Tier-1 production. |
| Active output discharge | Internally discharges OUT capacitor when disabled - prevents floating voltages and ensures clean power-down sequencing. |
| Functional safety documentation | Includes FIT rate, failure mode analysis, and diagnostic coverage data - accelerates ISO 26262 ASIL-B system-level certification. |
| Stable with small output capacitance | Works with ≥1µF ceramic COUT - reduces BOM count and PCB area vs. legacy LDOs requiring ≥10µF tantalum. |
Applications
| Automotive Head Units | Front/Rear Cameras |
|---|---|
|
Use Scenario: Powering DSP, display interface, and audio codec in infotainment head units with strict EMI and thermal constraints. IC Role / Device Role / Timing Role: Primary post-regulator delivering clean 1.7V to low-voltage logic and memory interfaces. Use Value: 38dB PSRR at 100kHz suppresses buck converter ripple; 25μA IQ extends battery backup runtime during ignition-off states. |
Use Scenario: Supplying image sensor analog front-end and ISP core in ADAS vision systems. IC Role / Device Role / Timing Role: Fixed-output LDO providing tightly regulated 1.7V rail with PG monitoring for sensor initialization sequence. Use Value: ±1.5% accuracy over temperature ensures consistent ADC reference and pixel gain calibration across vehicle life cycle. |
| Cluster Displays | Telematics Control Units |
|
Use Scenario: Regulating power to TFT-LCD driver ICs and touch controller in digital instrument clusters. IC Role / Device Role / Timing Role: Low-noise, high-PSRR LDO supplying 1.7V to display timing controllers with precise startup timing. Use Value: 200–650μs startup time enables synchronized power-up with MCU; wettable flanks ensure AOI-compatible assembly. |
Use Scenario: Providing auxiliary 1.7V rail for cellular modem baseband processors and GNSS receivers in TCUs. IC Role / Device Role / Timing Role: Sequenced enable/disable via EN/PG pins to coordinate with main SoC power domains. Use Value: Foldback current limit protects against short circuits in densely packed TCU modules; RθJA = 55.5°C/W simplifies thermal design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS74618PQWDRBRQ1 | Fixed 1.8V output; identical package, pinout, and specs except VOUT. | Used where system requires 1.8V I/O or core rail instead of 1.7V; no change to layout or sequencing logic. | Select when target SoC or sensor specifies 1.8V nominal supply - same thermal, noise, and PG behavior. |
| NCP1117ST17T3G | Industrial-grade (not AEC-Q100), 1A, 1.7V fixed, SOT-223 package; higher dropout (1.1V typ), no PG output. | Limited to non-safety-critical, non-automotive applications; lacks sequencing capability and automotive temp range. | Only suitable for cost-sensitive industrial prototypes; not qualified for production automotive use due to missing AEC-Q100, PG, and thermal specs. |
Compared with TPS74617PQWDRBRQ1, the TPS74618PQWDRBRQ1 offers identical automotive qualification and functionality at 1.8V, while the NCP1117ST17T3G lacks AEC-Q100 compliance, PG signaling, and low-dropout performance - making it unsuitable for ADAS or cluster applications requiring functional safety and tight regulation.
Availability
TPS74617PQWDRBRQ1 is available at Aetrix Electronics and suitable for automotive head units, front/rear cameras, and cluster displays requiring stable component supply with full AEC-Q100 traceability and extended temperature support.
Supply support for TPS74617PQWDRBRQ1 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 ICs, with decades of automotive qualification expertise and broad power management portfolio.
The TPS746-Q1 product line delivers ultra-low-dropout, AEC-Q100-compliant LDOs optimized for ADAS, infotainment, and domain controller power rails where precision, low noise, and functional safety are mandatory.
FAQ
What is the output voltage of the TPS74617PQWDRBRQ1?
The TPS74617PQWDRBRQ1 is a fixed-output LDO with a nominal output voltage of 1.7V. This value is factory-trimmed and guaranteed within ±1.5% over the full operating temperature range of –40°C to +150°C junction temperature, making it suitable for powering 1.7V I/O domains in automotive SoCs and image sensors.
Does the TPS74617PQWDRBRQ1 support power sequencing with other regulators?
Yes, the TPS74617PQWDRBRQ1 supports precise power sequencing via its active-high EN input and configurable power-good (PG) output. The PG pin can be configured as open-drain or push-pull and asserts when VOUT reaches ≥92% of 1.7V, enabling coordination with upstream/downstream supplies in multi-rail automotive systems such as telematics control units.
What package type does the TPS74617PQWDRBRQ1 use, and why is it important for automotive applications?
The TPS74617PQWDRBRQ1 uses the DRB package: a wettable flank VSON-8 (3mm × 3mm) with exposed thermal pad. This package enables automated optical inspection (AOI) of solder joints - a critical requirement for zero-defect manufacturing in automotive Tier-1 production - while delivering low RθJA = 55.5°C/W for reliable 1A operation at high ambient temperatures.
Is the TPS74617PQWDRBRQ1 qualified for automotive use, and what grade does it meet?
Yes, the TPS74617PQWDRBRQ1 is AEC-Q100 qualified for automotive applications and meets Grade 1 specifications, supporting operation from –40°C to +125°C ambient temperature. Its junction temperature range extends to +150°C, and it includes functional safety documentation to aid ISO 26262 ASIL-B system-level development for ADAS and digital cluster applications.
What is the minimum output capacitor required for stability with the TPS74617PQWDRBRQ1?
The TPS74617PQWDRBRQ1 is stable with a minimum 1µF ceramic output capacitor (X5R or X7R dielectric). This low capacitance requirement reduces solution size and cost compared to legacy LDOs needing ≥10µF tantalum capacitors, while maintaining excellent load transient response and phase margin across temperature and process variations.
TPS74617PQWDRBRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-VDFN 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):
- 1.7V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.48V @ 1A
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 36 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Current Limit, Enable, Power Good
- Protection Features:
- Over Current, Over Temperature, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 8-SON (3x3)
TPS74617PQWDRBRQ1 FAQ
1.How can I place an order for TPS74617PQWDRBRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS74617PQWDRBRQ1 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 TPS74617PQWDRBRQ1 reliable?
The price and inventory of TPS74617PQWDRBRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS74617PQWDRBRQ1 is usually 5 days.
3.What payment methods are accepted for TPS74617PQWDRBRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS74617PQWDRBRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS74617PQWDRBRQ1?
TPS74617PQWDRBRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS74617PQWDRBRQ1 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 TPS74617PQWDRBRQ1?
For technical support, including TPS74617PQWDRBRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS74617PQWDRBRQ1 requirements.
6.How does Aetrix verify that TPS74617PQWDRBRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS74617PQWDRBRQ1 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 TPS74617PQWDRBRQ1 meets industry standards.
7.What is the process for return or replacement of TPS74617PQWDRBRQ1?
All TPS74617PQWDRBRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS74617PQWDRBRQ1, 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 TPS74617PQWDRBRQ1 part is unused and in its original packaging.
Return procedure for TPS74617PQWDRBRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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