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Texas Instruments TL751M12QKVURQ1
- Part No.:
- TL751M12QKVURQ1
- Manufacturer:
- Texas Instruments
- Package:
- TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- Datasheet:
-
TL751M12QKVURQ1.pdf
- Description:
- IC REG LINEAR 12V 750MA TO252-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
TL751M12QKVURQ1 from Texas Instruments is an automotive-grade 12-V low-dropout linear voltage regulator in TO-252-5 (KVU) package, featuring enable control, load-dump protection up to 60 V, dropout voltage ≤0.6 V at 750 mA, and operation from –40°C to 125°C. It delivers stable power to infotainment head units, body control modules, and ADAS camera power rails.
For engineers reviewing the TL751M12QKVURQ1 datasheet, TL751M12QKVURQ1 pinout, TL751M12QKVURQ1 application, or TL751M12QKVURQ1 equivalent, key selection criteria include its AEC-Q100 qualification, TTL/CMOS-compatible ENABLE input, thermal overload protection, and compliance with automotive load-dump transients per ISO 7637-2.
Technical Context
The TL751M12QKVURQ1 integrates internal overvoltage, overcurrent, and thermal shutdown circuitry to survive harsh automotive environments. Its ENABLE input allows precise sequencing-high logic disables output (high-impedance state), enabling controlled power-up/down in multi-rail systems.
Designed for permanent battery connection, it maintains low quiescent current (≤75 mA at full load) and supports input transients up to 60 V for 100 ms during load dump. Output voltage accuracy is ±2% over temperature and line/load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 12 V ±2% (11.76–12.24 V), stable across –40°C to 125°C junction temperature |
| Dropout Voltage | ≤0.6 V at 750 mA (measured at 100 mV drop from nominal), enabling operation with minimal VIN–VOUT margin |
| Enable Input Logic | TTL/CMOS-compatible: VIH ≥2 V enables regulation; VIL ≤0.8 V places output in high-Z state |
| Load-Dump Protection | Withstands 60 V transient at input for up to 100 ms, per ISO 7637-2 Pulse 5a requirements |
| Quiescent Current | ≤75 mA at 750 mA load, minimizing standby power loss in always-on vehicle systems |
| Thermal Shutdown | Activates at virtual junction temperature ≥150°C, with automatic recovery after cooling |
| Operating Temperature | –40°C to 125°C virtual junction range, qualified per AEC-Q100 Grade 1 |
Pinout & Package
TL751M12QKVURQ1 uses the TO-252-5 (KVU) surface-mount package with exposed thermal pad. The package measures 6.70 mm × 6.22 mm × 2.52 mm max height and requires soldering to a PCB thermal pad for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (INPUT) | Regulator input supply | Accepts 13–26 V DC nominal; withstands 60 V transients for 100 ms |
| 2 (GND) | Power ground reference | Common return for input, output, and enable; electrically connected to exposed thermal pad |
| 3 (OUTPUT) | Regulated 12-V output | Delivers up to 750 mA with ≤120 mV load regulation (5–750 mA) |
| 4 (ENABLE) | Digital enable control input | Active-high TTL/CMOS interface; high = regulation enabled, low = output high-Z |
| 5 (COMMON) | Second ground terminal | Redundant ground path for improved noise immunity and thermal conduction; tied internally to Pin 2 and thermal pad |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use across –40°C to +125°C ambient, supporting under-hood and cabin applications |
| Integrated load-dump protection | Eliminates need for external TVS diodes in ISO 7637-2 Pulse 5a-compliant designs |
| Enable-controlled sequencing | Enables deterministic power-up order in multi-regulator systems without external logic |
| Low dropout at full load | 0.6 V dropout at 750 mA allows operation from 12.6 V battery minimum (cold-crank tolerant) |
| Internal thermal and current limiting | Self-protecting architecture prevents damage during short-circuit or overheating events |
Applications
| Infotainment Head Unit Power | ADAS Camera Module Supply |
|---|---|
Use Scenario: Powers microcontroller, display driver, and audio codec in automotive infotainment systems requiring always-on capability and cold-crank resilience. IC Role / Device Role / Timing Role: Primary 12-V LDO delivering clean, sequenced power with ENABLE synchronized to system MCU wake signal. Use Value: Enables zero-power shutdown via ENABLE while maintaining battery backup integrity; ±2% output stability ensures consistent display brightness and audio fidelity. | Use Scenario: Supplies image sensor and ISP in rear-view or surround-view cameras mounted externally on vehicle body panels. IC Role / Device Role / Timing Role: Regulator with load-dump immunity protecting sensitive CMOS image sensors from 60-V transients during alternator load dump. Use Value: Eliminates need for discrete TVS + LDO cascades, reducing BOM count and PCB area by 30% versus legacy solutions. |
| Body Control Module (BCM) Core Rail | Telematics Control Unit (TCU) Standby Supply |
Use Scenario: Provides regulated 12-V rail for BCM microcontroller, CAN transceivers, and relay drivers in door modules and lighting controllers. IC Role / Device Role / Timing Role: Always-on LDO with low quiescent current (<75 mA at full load) sustaining sleep-mode operation without draining 12-V battery. Use Value: Meets OEM <100 µA total module sleep current targets when combined with MCU-controlled ENABLE assertion. | Use Scenario: Powers real-time clock, cellular modem retention memory, and wake-on-LIN circuitry in TCUs requiring persistent connectivity during vehicle off-state. IC Role / Device Role / Timing Role: Low-noise, enable-gated 12-V source ensuring data retention and fast network reconnection after ignition cycle. Use Value: Shutdown current ≤200 µA (ENABLE high) extends battery life during multi-week parking scenarios without compromising remote diagnostics readiness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL751M12QKTTRQ1 | Same electrical specs, but in TO-263-5 (KTT) package with higher θJA (26.5°C/W vs 38.6°C/W) | Better thermal performance in low-airflow chassis locations; requires larger PCB footprint | Select for higher power dissipation margins where board space permits |
| TPS7B8750QKVURQ1 | 5-V fixed output, 500-mA rating, lower dropout (0.35 V), integrated watchdog timer | Not a direct voltage/function replacement; suited for MCU core rails, not 12-V peripherals | Choose only if system redesign accommodates 5-V rail and requires built-in supervision |
Compared with TL751M12QKTTRQ1 and TPS7B8750QKVURQ1, TL751M12QKVURQ1 offers optimal balance of 12-V output, 750-mA capability, TO-252-5 compactness, and proven load-dump robustness-making it the preferred choice for cost-sensitive, space-constrained 12-V automotive peripheral regulation.
Availability
TL751M12QKVURQ1 is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, and body control modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TL751M12QKVURQ1 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 power management ICs.
The TL751Mxx-Q1 product line was designed specifically for automotive power management, emphasizing robustness against load-dump, reverse-battery, and thermal stress in permanently connected vehicle systems.
FAQ
What is the maximum input voltage the TL751M12QKVURQ1 can withstand during load-dump events?
The TL751M12QKVURQ1 withstands transient input voltages up to 60 V for durations ≤100 ms, complying with ISO 7637-2 Pulse 5a for automotive load-dump protection. This eliminates the need for external TVS diodes in most front-end protection schemes. Continuous input voltage must remain ≤26 V. The device's internal overvoltage protection activates above this threshold to prevent damage.
Does the TL751M12QKVURQ1 require an external capacitor for stability, and what are the recommended values?
Yes, TL751M12QKVURQ1 requires an output capacitor with controlled ESR for loop stability. TI specifies a minimum 10-µF tantalum capacitor with ESR between 0.13 Ω and 2 Ω (depending on load current). For 750-mA loads, 10–47 µF with 0.3–0.8 Ω ESR is typical. Input requires ≥0.1 µF ceramic. Deviations outside these ranges risk oscillation or poor transient response.
How does the ENABLE pin function on the TL751M12QKVURQ1, and what logic levels are required?
The ENABLE pin on TL751M12QKVURQ1 is TTL/CMOS-compatible: VIH ≥2 V enables regulation (output active), while VIL ≤0.8 V forces output into high-impedance state (shutdown). During shutdown, quiescent current drops to ≤200 µA. The pin has no internal pull-up/down, so external biasing is required in floating conditions to ensure defined startup behavior.
Is the TL751M12QKVURQ1 qualified to AEC-Q100, and which grade does it meet?
Yes, TL751M12QKVURQ1 is AEC-Q100 qualified per Grade 1, meaning it is specified for operation from –40°C to +125°C virtual junction temperature. This qualification covers stress testing for temperature cycling, humidity, ESD, and lifetime reliability-ensuring suitability for passenger compartment and under-hood automotive applications.
What thermal considerations apply to the TL751M12QKVURQ1 in TO-252-5 (KVU) package?
The TL751M12QKVURQ1 in TO-252-5 has θJA = 38.6°C/W (JEDEC high-K board). To maintain TJ ≤125°C at 750 mA output with 13 V input (1.5 W dissipation), ambient must stay ≤98°C with standard layout. Use of the exposed thermal pad soldered to ≥2 cm² copper pour with ≥4 thermal vias is mandatory. Without proper thermal design, internal thermal shutdown will activate.
TL751M12QKVURQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 26V
- Voltage - Output (Min/Fixed):
- 12V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.6V @ 750mA
- Current - Output:
- 750mA
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- 55dB (120Hz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature, Over Voltage, Reverse Polarity
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252-5
TL751M12QKVURQ1 FAQ
1.How can I place an order for TL751M12QKVURQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TL751M12QKVURQ1 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 TL751M12QKVURQ1 reliable?
The price and inventory of TL751M12QKVURQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL751M12QKVURQ1 is usually 5 days.
3.What payment methods are accepted for TL751M12QKVURQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL751M12QKVURQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL751M12QKVURQ1?
TL751M12QKVURQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL751M12QKVURQ1 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 TL751M12QKVURQ1?
For technical support, including TL751M12QKVURQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL751M12QKVURQ1 requirements.
6.How does Aetrix verify that TL751M12QKVURQ1 is sourced from the original manufacturer or authorized distributors?
All TL751M12QKVURQ1 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 TL751M12QKVURQ1 meets industry standards.
7.What is the process for return or replacement of TL751M12QKVURQ1?
All TL751M12QKVURQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TL751M12QKVURQ1, 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 TL751M12QKVURQ1 part is unused and in its original packaging.
Return procedure for TL751M12QKVURQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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