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Texas Instruments TL760M33QKTTRQ1
- Part No.:
- TL760M33QKTTRQ1
- Manufacturer:
- Texas Instruments
- Package:
- TO-263-4, D2PAK (3 Leads + Tab), TO-263AA
- Datasheet:
-
TL760M33QKTTRQ1.pdf
- Description:
- IC REG LIN 3.3V 500MA DDPAK
- Quantity:
- Payment:
- Shipping:
Inventory:621
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Product details
Overview
TL760M33QKTTRQ1 from Texas Instruments is an automotive-grade, fixed-output 3.3-V low-dropout linear regulator with pnp pass element, rated for 500 mA output current, 500 mV maximum dropout at full load, ±3% output voltage accuracy across –40°C to 150°C junction temperature, and load-dump protection up to 45 V - deployed in engine control units and ADAS power rails.
For engineers reviewing the TL760M33QKTTRQ1 datasheet, TL760M33QKTTRQ1 pinout, TL760M33QKTTRQ1 application, or TL760M33QKTTRQ1 equivalent, key selection criteria include dropout voltage under automotive transients, thermal resistance in TO-263 (KTT), load-dump immunity, and compatibility with low-ESR tantalum output capacitors.
Technical Context
The TL760M33QKTTRQ1 uses a PNP-based pass transistor architecture enabling stable regulation down to 3.8 V input while maintaining 3.3 V output across 0–500 mA load and –40°C to 150°C virtual junction temperature. Its internal overvoltage, thermal-overload, and current-limiting protections are integrated without external components.
Stability is optimized for automotive environments using a 0.1 µF input capacitor and 22 µF tantalum output capacitor with 1.5 Ω ESR; compensation is internal and not user-adjustable. The device meets AEC-Q100 Grade 1 qualification and supports load-dump events up to 45 V without latch-up or damage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±3% over full load (5–500 mA) and temperature (–40°C to 150°C) |
| Maximum Dropout Voltage | 500 mV at 500 mA - enables operation with only 3.8 V input, critical for cold-crank automotive scenarios |
| Input Voltage Range | 3.8 V to 26 V continuous; withstands 45 V load-dump transients without shutdown or damage |
| Output Current | Up to 500 mA DC - sufficient for microcontroller cores, CAN transceivers, and sensor signal chains |
| Thermal Resistance (θJA) | 26.9°C/W on high-K PCB per JESD 51-5 - supports >3 W dissipation at 125°C ambient |
| Power Supply Ripple Rejection | 62 dB at 100 Hz - suppresses alternator ripple and switching noise in vehicle electrical systems |
| Quiescent Current | 20–30 mA at 500 mA load - balances low-noise regulation with standby efficiency |
Pinout & Package
TL760M33QKTTRQ1 is housed in a thermally enhanced DDPAK/TO-263 (KTT) package with 3 terminals and an exposed thermal pad. The package measures 10.41 mm × 9.40 mm × 2.52 mm and is RoHS-compliant with Sn lead finish and MSL Level-3 rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INPUT | Regulator input supply connection | Accepts 3.8–26 V DC; must be decoupled with ≥0.1 µF ceramic capacitor near pin |
| GND | Ground reference and thermal path | Connected to PCB ground plane and exposed thermal pad; primary heat conduction path |
| OUTPUT | Regulated 3.3 V output node | Drives load up to 500 mA; requires 22 µF tantalum capacitor (1.5 Ω ESR) for stability |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive operation from –40°C to +125°C ambient, supporting engine bay and chassis applications |
| Integrated load-dump protection | Withstands 45 V transient pulses per ISO 7637-2 without external TVS or shutdown - reduces BOM count |
| Internal thermal-overload protection | Auto-shutdown and recovery cycle prevents permanent damage during sustained overload or poor heatsinking |
| ±3% output accuracy over full range | Eliminates need for post-regulation trimming in safety-critical MCU and sensor power domains |
| Low-ESR capacitor compatibility | Stable with 22 µF tantalum (1.5 Ω ESR); avoids costly polymer or ceramic alternatives in cost-sensitive designs |
Applications
| Engine Control Unit (ECU) Power Rail | Advanced Driver Assistance Systems (ADAS) Camera Module |
|---|---|
Use Scenario: Supplies 3.3 V to microcontroller, CAN interface, and analog front-end in gasoline/diesel engine management systems exposed to cold-crank (≤6 V) and load-dump (≤45 V) events. IC Role / Device Role / Timing Role: Primary LDO for core logic domain; provides clean, regulated rail independent of battery fluctuations. Use Value: 500 mV dropout ensures regulation during cold-crank; ±3% tolerance guarantees ADC reference stability and flash programming integrity. |
Use Scenario: Powers image signal processor (ISP) and serializer in rear-view or surround-view camera modules mounted in vehicle exterior zones. IC Role / Device Role / Timing Role: Local point-of-load regulator delivering low-noise 3.3 V to high-speed digital imaging circuitry. Use Value: 62 dB PSRR suppresses alternator ripple; thermal robustness (θJA = 26.9°C/W) sustains performance in sealed, unventilated housings. |
| Automotive Body Control Module (BCM) | Infotainment System Microprocessor Core |
Use Scenario: Regulates power for door module MCUs, LIN transceivers, and LED drivers subject to repeated load-dump transients during battery replacement or jump-start. IC Role / Device Role / Timing Role: Fault-tolerant 3.3 V source with built-in overvoltage and thermal protection. Use Value: Integrated 45 V load-dump protection eliminates need for external TVS diode - reducing board space and validation effort. |
Use Scenario: Supplies 3.3 V to application processor I/O banks and memory interfaces in head-unit infotainment systems operating near HVAC ducts. IC Role / Device Role / Timing Role: Secondary LDO providing isolated, low-noise domain for high-speed digital interfaces. Use Value: Tight ±3% output tolerance ensures reliable DDR I/O signaling margins; TO-263 thermal pad enables direct mounting to copper pour for thermal management. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7B6733QPWPRQ1 | Lower quiescent current (25 µA vs. 20–30 mA), higher PSRR (70 dB), but lower output current (400 mA) and 600 mV dropout | Better suited for always-on, ultra-low-power domains (e.g., CAN wake-up circuits); less suitable for high-current MCU cores | Select when standby current dominates design priority and load current ≤400 mA |
| LM2936QMM-3.3/NOPB | Higher dropout (600 mV), wider input range (40 V), but no load-dump protection and ±5% output tolerance | Requires external TVS for load-dump; tighter thermal derating needed due to higher θJA (55°C/W) | Select only if 40 V absolute max input is required and load-dump events are externally clamped |
Compared with TPS7B6733QPWPRQ1 and LM2936QMM-3.3/NOPB, TL760M33QKTTRQ1 delivers superior current capability (500 mA) and integrated load-dump hardening - making it the preferred choice for main MCU power domains where transient resilience and output accuracy outweigh ultra-low IQ requirements.
Availability
TL760M33QKTTRQ1 is available at Aetrix Electronics and suitable for engine control units, ADAS camera modules, and body control modules requiring stable component supply under automotive qualification and long-term production continuity.
Supply support for TL760M33QKTTRQ1 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 headquartered in Dallas, Texas, specializing in analog, embedded processing, and automotive ICs with broad manufacturing scale and AEC-Q100 validation infrastructure.
The TL760M33QKTTRQ1 belongs to TI's automotive-qualified LDO regulator family designed specifically for harsh-temperature, high-transient automotive subsystems - emphasizing load-dump resilience, thermal robustness, and ±3% output precision without external compensation.
FAQ
What is the maximum input voltage the TL760M33QKTTRQ1 can withstand during load-dump events?
The TL760M33QKTTRQ1 is rated for 45 V absolute maximum input voltage and features integrated load-dump protection that allows it to survive ISO 7637-2 Pulse 5a transients without shutdown or damage. This capability is intrinsic to the device architecture and does not require external components. The TL760M33QKTTRQ1 maintains regulation up to 26 V under continuous operation, with transient immunity extending to 45 V for defined pulse durations.
Does the TL760M33QKTTRQ1 require external capacitors for stability, and what are the recommended values?
Yes, the TL760M33QKTTRQ1 requires a 0.1 µF ceramic capacitor on the INPUT pin and a 22 µF tantalum capacitor on the OUTPUT pin with 1.5 Ω equivalent series resistance (ESR) for guaranteed stability across temperature and load. These values are specified in the datasheet's Compensation-Capacitor Selection Information section and validated per JEDEC JESD85. Deviating from these values may cause oscillation or degraded transient response in the TL760M33QKTTRQ1.
What is the thermal performance of the TL760M33QKTTRQ1 in its TO-263 (KTT) package?
The TL760M33QKTTRQ1 in the TO-263 (KTT) package has a junction-to-ambient thermal resistance (θJA) of 26.9°C/W when mounted on a high-thermal-conductivity PCB per JESD 51-5. With a maximum virtual junction temperature of 150°C and ambient up to 125°C, this enables ≥2.8 W of continuous power dissipation. The exposed thermal pad must be soldered to a minimum 240 mm² copper area for rated performance.
Is the TL760M33QKTTRQ1 pin-compatible with other members of the TL760M family?
No - the TL760M33QKTTRQ1 shares the same TO-263 (KTT) 3-pin configuration with other TL760M variants (e.g., TL760M50QKTTRQ1), but output voltage is fixed per part number and not adjustable. While pinout is identical across the KTT-packaged TL760M series, substitution requires verification of dropout, thermal, and transient specifications - the TL760M33QKTTRQ1 is not a drop-in replacement for higher-voltage variants due to different internal feedback networks.
What automotive qualification level does the TL760M33QKTTRQ1 meet?
The TL760M33QKTTRQ1 is qualified to AEC-Q100 Grade 1, meaning it is certified for operation from –40°C to +125°C ambient temperature and has passed stress tests including HTOL, TC, UHAST, and ESD per automotive reliability standards. This qualification applies specifically to the TL760M33QKTTRQ1 lot, not the broader TL760M family, and is documented in TI's official AEC-Q100 report for this orderable part number.
TL760M33QKTTRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- TO-263-4, D2PAK (3 Leads + Tab), TO-263AA
- 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):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 500mA
- Current - Output:
- 500mA
- Current - Quiescent (Iq):
- 15 mA
- Current - Supply (Max):
- 30 mA
- PSRR:
- 62dB (100Hz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature, Over Voltage
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263 (DDPAK-3)
TL760M33QKTTRQ1 FAQ
1.How can I place an order for TL760M33QKTTRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TL760M33QKTTRQ1 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 TL760M33QKTTRQ1 reliable?
The price and inventory of TL760M33QKTTRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL760M33QKTTRQ1 is usually 5 days.
3.What payment methods are accepted for TL760M33QKTTRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL760M33QKTTRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL760M33QKTTRQ1?
TL760M33QKTTRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL760M33QKTTRQ1 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 TL760M33QKTTRQ1?
For technical support, including TL760M33QKTTRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL760M33QKTTRQ1 requirements.
6.How does Aetrix verify that TL760M33QKTTRQ1 is sourced from the original manufacturer or authorized distributors?
All TL760M33QKTTRQ1 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 TL760M33QKTTRQ1 meets industry standards.
7.What is the process for return or replacement of TL760M33QKTTRQ1?
All TL760M33QKTTRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TL760M33QKTTRQ1, 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 TL760M33QKTTRQ1 part is unused and in its original packaging.
Return procedure for TL760M33QKTTRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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