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Texas Instruments TPS7A6301QPWPRQ1
- Part No.:
- TPS7A6301QPWPRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 14-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TPS7A6301QPWPRQ1.pdf
- Description:
- IC REG LIN POS ADJ 14HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,994
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Product details
Overview
TPS7A6301QPWPRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-grade adjustable-output LDO regulator with integrated watchdog timer, power-on reset, and fault protection. It delivers up to 300 mA at 2.5–7 V output (programmable via FB pin), supports 7–40 V input, features 35 µA typical quiescent current, and operates from –40°C to 150°C junction temperature - used in automotive head units and center displays for stable low-power MCU supply.
For engineers reviewing the TPS7A6301QPWPRQ1 datasheet, TPS7A6301QPWPRQ1 pinout, TPS7A6301QPWPRQ1 application, or TPS7A6301QPWPRQ1 equivalent, this page provides verified technical context, validated pin functions, confirmed automotive-grade specifications, and real-world design implications - including watchdog window programmability via ROSC, reset delay tuning via CDLY, and fault-flag behavior specific to the TPS7A63-Q1 family variant.
Technical Context
The TPS7A6301QPWPRQ1 implements a monolithic PMOS pass transistor architecture with internal charge pump enabling operation down to 7 V input while maintaining regulation during cold-crank transients. Its integrated watchdog uses an external resistor on ROSC to set window duration (10 ms to 254 ms), and its open-drain nRST output is programmable via CDLY capacitor (100 pF–100 nF) with deglitch filtering (5.5 µs).
It integrates UVLO (3.16 V turn-off, 3.45 V turn-on), thermal shutdown (165°C trip, 10°C hysteresis), short-circuit/overcurrent protection (350–1000 mA limit), and low-ESR ceramic capacitor stability. The FB pin enables precise output voltage setting using R1/R2 resistive divider referenced to 1.23 V internal bandgap.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 300 mA max continuous - sufficient for powering automotive MCUs, CAN transceivers, and display controllers without external boost stages. |
| Input Voltage Range | 7 V to 40 V - supports 12 V/24 V automotive systems and withstands 45 V load-dump transients per ISO 7637-2. |
| Quiescent Current | 35 µA typical at light load - enables always-on subsystems (e.g., body control modules) to meet <100 µA sleep budget. |
| Dropout Voltage | 300 mV at 150 mA - allows operation with minimal VIN–VOUT margin, reducing heat dissipation in high-temperature under-hood environments. |
| Watchdog Window | Programmable 10 ms to 254 ms via ROSC resistor - configurable for microcontroller firmware execution timing without requiring external timer ICs. |
| Reset Delay | Programmable 300 µs to 300 ms via CDLY capacitor - ensures reliable power sequencing for processors before release of nRST signal. |
| Operating Junction Temp | –40°C to 150°C - qualified per AEC-Q100 Grade 1 for engine bay and infotainment applications. |
Pinout & Package
TPS7A6301QPWPRQ1 is packaged in a thermally enhanced 14-pin HTSSOP (PWP) with PowerPAD, measuring 5.00 mm × 4.40 mm, optimized for automotive PCB layouts requiring high thermal reliability and compact footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Unregulated input supply | Accepts 7–40 V; includes 45 V transient tolerance and internal UVLO (3.16 V off / 3.45 V on). |
| VOUT | Regulated output | Adjustable 2.5–7 V via FB pin; stable with low-ESR ceramic capacitors ≥1 µF. |
| EN | Enable control input | High-voltage-tolerant (up to 40 V); internal pulldown keeps device disabled if floating. |
| nRST | Open-drain reset output | Asserts low when VOUT falls below 93% of target; requires external pull-up to VOUT. |
| FB | Feedback input | Connects to R1/R2 divider to set output; references 1.23 V internal bandgap for precision adjustment. |
| RDELAY | Reset delay timer output | Sinks 0.75–1.25 µA to charge CDLY; sets POR delay time (tPOR = CDLY × 1.1 × 10⁶ s/F). |
| ROSC | Oscillator frequency control | Connects to ground via resistor to program watchdog window (tWD ≈ 10 ms × ROSC/10 kΩ). |
| WD | Watchdog service input | Active-high pulse (>1.65 µs wide) resets watchdog timer; must be serviced within programmed window. |
| nWD_EN | Watchdog enable/disable | Active-low; pulling high disables watchdog; internal pulldown enables it by default. |
| WD_FLT | Watchdog fault output | Active-low open-drain flag indicating un-serviced watchdog timeout; requires external pull-up. |
| GND | Signal ground reference | Common return path for all analog and digital circuitry; connects to exposed PowerPAD for thermal conduction. |
| CIN / COUT / CDLY | External capacitor connections | Not pins - require external 1 µF+ CIN, 10 µF+ COUT (low-ESR ceramic), and 100 pF–100 nF CDLY. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated watchdog with programmable window | Enables fail-safe MCU supervision without external timing components - ROSC resistor directly sets timeout duration. |
| Programmable power-on reset delay | CDLY capacitor selects tPOR from 300 µs to 300 ms, ensuring deterministic boot timing for automotive processors. |
| AEC-Q100 Grade 1 qualification | Validated for –40°C to 125°C ambient (–40°C to 150°C junction), meeting stringent automotive reliability and lifetime requirements. |
| Low-ESR ceramic capacitor stability | Eliminates need for costly tantalum or aluminum electrolytic output caps - reduces BOM cost and improves long-term reliability. |
| Thermal shutdown with hysteresis | Shuts down at 165°C and re-enables only after cooling to 155°C, preventing thermal cycling damage in enclosed enclosures. |
Applications
| Automotive Head Unit Power Supply | ADAS Camera Module Bias Rail |
|---|---|
Use Scenario: Supplies regulated 3.3 V or 5 V to SoC, DSP, and image sensor in infotainment head units exposed to wide temperature and load transients. IC Role / Device Role / Timing Role: Primary LDO with integrated watchdog and reset - replaces discrete supervisor + LDO + timer solution. Use Value: Reduces component count by 3–4 devices while meeting ASIL-B functional safety readiness through fault signaling (WD_FLT, nRST). |
Use Scenario: Powers image sensor and ISP in rear-view or surround-view cameras mounted near vehicle exterior. IC Role / Device Role / Timing Role: Adjustable-output LDO with cold-crank tracking - maintains regulation during 4–7 V cranking dips without external boost. Use Value: Enables uninterrupted camera operation during engine start; 35 µA IQ extends battery life in parking-mode vision systems. |
| Body Control Module (BCM) Subsystem | Automotive Gateway ECU Core Rail |
Use Scenario: Provides always-on 5 V rail for CAN transceivers, LIN nodes, and wake-up logic in BCMs. IC Role / Device Role / Timing Role: Low-IQ LDO with programmable reset - ensures clean power-up sequence for microcontrollers after ignition cycle. Use Value: Meets OEM <100 µA sleep current targets; WD_FLT alerts host MCU of software hang before system-level failure. |
Use Scenario: Generates core 3.3 V supply for multi-core gateway MCUs managing CAN FD, Ethernet, and wireless interfaces. IC Role / Device Role / Timing Role: High-reliability LDO with thermal and overcurrent protection - prevents single-point failure in centralized vehicle networks. Use Value: Integrated fault protection eliminates need for external current-sense amplifiers or discrete thermal sensors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7B6750QDDARQ1 | Fixed 5 V output; no FB pin; lower IQ (25 µA); no watchdog; 450 mA output | Lacks programmability and supervision - suitable only where fixed output and basic reset suffice | Select when watchdog and adjustable output are unnecessary and higher output current is required |
| TLV73333PDBVR | Non-automotive; 3.3 V fixed; 300 mA; 65 µA IQ; no watchdog/reset; SOT-23-5 package | Not AEC-Q100 qualified; lacks fault signaling and thermal robustness for under-hood use | Consider only for non-safety-critical, cost-sensitive consumer-grade designs outside automotive |
Compared with TPS7A6301QPWPRQ1, TPS7B6750QDDARQ1 offers higher current but omits programmability and supervision, while TLV73333PDBVR lacks automotive qualification and fault features - making TPS7A6301QPWPRQ1 uniquely suited for safety-aware, adjustable-rail automotive subsystems requiring integrated monitoring.
Availability
TPS7A6301QPWPRQ1 is available at Aetrix Electronics and suitable for automotive head units, ADAS camera modules, and body control modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPS7A6301QPWPRQ1 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-grade power management ICs.
The TPS7A63-Q1 product line was designed specifically for automotive power rails demanding ultra-low IQ, integrated functional safety features (watchdog, reset, fault flag), and robust operation across –40°C to 150°C junction temperatures.
FAQ
What output voltage range does the TPS7A6301QPWPRQ1 support?
The TPS7A6301QPWPRQ1 supports an adjustable output voltage range of 2.5 V to 7 V, set externally via resistive divider connected to the FB pin. Its internal 1.23 V reference enables precise programming, and the datasheet confirms ±2% output accuracy over load, line, and temperature for properly designed feedback networks.
Does the TPS7A6301QPWPRQ1 include watchdog functionality, and how is it configured?
Yes, the TPS7A6301QPWPRQ1 includes a programmable window watchdog. It is configured using an external resistor (ROSC) connected between the ROSC pin and GND - values from 10 kΩ to 200 kΩ set the watchdog window from 10 ms to 200 ms. The nWD_EN pin allows active disabling, and WD_FLT provides active-low fault indication upon timeout.
What is the maximum input voltage and transient tolerance for the TPS7A6301QPWPRQ1?
The TPS7A6301QPWPRQ1 has a recommended operating input voltage range of 7 V to 40 V, with absolute maximum rating of 45 V for transients per ISO 7637-2. This makes it suitable for 12 V and 24 V automotive systems, including handling load-dump events without external clamping circuitry.
How is the power-on reset delay programmed on the TPS7A6301QPWPRQ1?
The power-on reset delay (tPOR) is programmed using an external capacitor (CDLY) connected between the RDELAY pin and GND. With CDLY values from 100 pF to 100 nF, tPOR ranges from 300 µs to 300 ms. The internal current source (0.75–1.25 µA) charges CDLY to a threshold, triggering nRST assertion after the delay elapses.
Is the TPS7A6301QPWPRQ1 AEC-Q100 qualified, and what grade does it meet?
Yes, the TPS7A6301QPWPRQ1 is AEC-Q100 qualified and meets Grade 1 requirements: operating ambient temperature from –40°C to 125°C and junction temperature from –40°C to 150°C. This qualification covers stress testing for reliability, ESD, thermal cycling, and lifetime performance in automotive environments.
TPS7A6301QPWPRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-PowerTSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Adjustable
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- 7V
- Voltage Dropout (Max):
- 0.5V @ 250mA
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 35 µA
- Current - Supply (Max):
- -
- PSRR:
- 60dB ~ 30dB (100Hz ~ 150kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-HTSSOP
TPS7A6301QPWPRQ1 FAQ
1.How can I place an order for TPS7A6301QPWPRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS7A6301QPWPRQ1 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 TPS7A6301QPWPRQ1 reliable?
The price and inventory of TPS7A6301QPWPRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS7A6301QPWPRQ1 is usually 5 days.
3.What payment methods are accepted for TPS7A6301QPWPRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS7A6301QPWPRQ1 transactions.
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4.How is shipping managed for TPS7A6301QPWPRQ1?
TPS7A6301QPWPRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS7A6301QPWPRQ1 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 TPS7A6301QPWPRQ1?
For technical support, including TPS7A6301QPWPRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS7A6301QPWPRQ1 requirements.
6.How does Aetrix verify that TPS7A6301QPWPRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS7A6301QPWPRQ1 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 TPS7A6301QPWPRQ1 meets industry standards.
7.What is the process for return or replacement of TPS7A6301QPWPRQ1?
All TPS7A6301QPWPRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS7A6301QPWPRQ1, 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 TPS7A6301QPWPRQ1 part is unused and in its original packaging.
Return procedure for TPS7A6301QPWPRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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