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Texas Instruments TLV76790QWDRBRQ1
- Part No.:
- TLV76790QWDRBRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 8-VDFN Exposed Pad
- Datasheet:
-
TLV76790QWDRBRQ1.pdf
- Description:
- IC REG LIN 9V 1A 8SON
- Quantity:
- Payment:
- Shipping:
Inventory:2,828
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Product details
Overview
TLV76790QWDRBRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-grade 1-A linear voltage regulator with adjustable output (0.8 V to 14.6 V), 1% output accuracy over load and temperature, 50 µA typical quiescent current, and 70 dB PSRR at 1 kHz. It operates from 2.5 V to 16 V input and delivers stable bias for SiC gate drivers and automotive head units.
For engineers reviewing the TLV76790QWDRBRQ1 datasheet, TLV76790QWDRBRQ1 pinout, TLV76790QWDRBRQ1 application, or TLV76790QWDRBRQ1 equivalent, key selection criteria include dropout voltage (0.63 V typ at 1 A), thermal shutdown threshold (180°C), wettable-flank WSON-8 package, and enable-controlled soft-start (500 µs).
Technical Context
The TLV76790QWDRBRQ1 implements a CMOS pass transistor architecture with internal 0.8-V reference, foldback current limiting, and active output pulldown during disable. Its UVLO circuit features 130 mV hysteresis and thresholds of 2.22 V (rising) and 2.09 V (falling), ensuring robust startup under varying input conditions.
It integrates thermal shutdown with 20°C hysteresis (180°C trip / 160°C reset), supports remote sensing via SNS pin in fixed-output variants, and achieves high PSRR (>46 dB at 1 MHz) through wide-bandwidth error amplifier design - critical for post-regulating switching converter outputs in noise-sensitive automotive subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output current | 1 A max continuous - supports MCU core rails and gate driver bias without external heatsinking in thermally optimized layouts. |
| Input voltage range | 2.5 V to 16 V - compatible with 12-V automotive battery rails, transformer secondaries, and upstream DC/DC outputs. |
| Output accuracy | ±1% over –40°C to +125°C ambient - meets tight supply requirements of digital loads including automotive MCUs and processors. |
| Quiescent current | 50 µA typ (no load), 4 µA max (shutdown) - enables always-on systems with low standby power consumption. |
| PSRR | 70 dB at 1 kHz, 46 dB at 1 MHz - attenuates switching ripple from upstream converters, reducing need for additional filtering. |
| Dropout voltage | 0.63 V typ at 1 A (VIN ≥ 3.0 V) - enables regulation from low headroom inputs such as 3.3-V or 5-V intermediate rails. |
| Thermal resistance | RθJA = 51.9°C/W - allows 1-A operation up to +125°C ambient when mounted on 2-layer PCB with thermal pad connected to ground plane. |
Pinout & Package
TLV76790QWDRBRQ1 uses an 8-pin, 3.0 mm × 3.0 mm WSON package (DRB) with wettable flanks and exposed thermal pad. The package supports automated optical inspection (AOI) and provides low thermal resistance (RθJA = 51.9°C/W) when the thermal pad is soldered to a large-area ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 8) | Power input | Accepts 2.5–16 V input; requires ≥1 µF ceramic capacitor placed adjacent to IN and GND pins for stability. |
| OUT (Pin 1) | Regulated output | Delivers 0.8–14.6 V adjustable output; supports ≥1 µF output capacitance with ESR ≤500 mΩ. |
| FB (Pin 3) | Feedback input | Connects to resistor divider to set output voltage; must not be left floating; internal 0.8-V reference. |
| GND (Pins 4, 6) | Ground reference | Both pins must be connected to system ground; shared return path for input/output capacitors and thermal pad. |
| EN (Pin 5) | Enable control | Active-high logic input (1.2 V min high, 0.4 V max low); internal pullup allows floating for default-enable operation. |
| NC (Pins 2, 7) | No connect | Not internally bonded; may be floated or tied to GND for improved thermal performance. |
| Thermal pad | Thermal interface | Exposed copper pad beneath package; must be soldered to PCB ground plane to achieve rated RθJA. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive ambient operation from –40°C to +125°C and junction temperatures up to +150°C. |
| Internal soft-start | 500 µs typical ramp time - limits inrush current, enabling smaller input capacitance and reducing stress on upstream supplies. |
| Foldback current limiting | 1.37 A typical current limit with foldback activation at 50% of nominal VOUT - protects against short-circuit faults while minimizing thermal runaway. |
| Output pulldown circuit | 1.2 mA typical sink capability activated during shutdown - actively discharges output capacitance to prevent floating rail conditions. |
| Stability with low-ESR capacitors | Stable with ≥1 µF ceramic output capacitor (ESR ≤500 mΩ) - eliminates need for tantalum or electrolytic capacitors. |
Applications
| Automotive Head Units | SiC Gate Driver Bias |
|---|---|
Use Scenario: Powering infotainment SoCs, audio codecs, and display controllers in vehicle dashboards. IC Role / Device Role / Timing Role: Primary LDO providing clean, low-noise 1.8-V or 3.3-V rails for digital subsystems. Use Value: 70 dB PSRR at 1 kHz suppresses switching noise from buck converters, eliminating audible artifacts in audio paths. |
Use Scenario: Generating isolated gate bias for silicon carbide (SiC) MOSFETs in traction inverters and OBCs. IC Role / Device Role / Timing Role: Adjustable-output LDO delivering precise 12-V or 15-V gate drive voltage with fast transient response. Use Value: 1% output accuracy ensures consistent gate overdrive across temperature, maintaining SiC FET safe operating area. |
| On-Board Chargers (OBC) | Inverter Control Logic |
Use Scenario: Supplying auxiliary power to microcontrollers, sensors, and communication interfaces inside EV charging modules. IC Role / Device Role / Timing Role: High-reliability post-regulator converting 12-V battery or DC-link-derived rails to 5-V or 3.3-V logic supplies. Use Value: AEC-Q100 qualification and thermal shutdown (180°C) ensure uninterrupted operation in high-temperature OBC enclosures. |
Use Scenario: Powering FPGA-based motor control logic, position encoder interfaces, and isolation barrier drivers in traction inverters. IC Role / Device Role / Timing Role: Low-quiescent-current (50 µA) LDO supporting always-on monitoring functions during vehicle sleep mode. Use Value: 4 µA max shutdown current minimizes battery drain during extended parking, extending vehicle standby time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV76712QWDRBRQ1 | Fixed 1.2-V output; identical package, thermal specs, and AEC-Q100 Grade 1 rating. | Eliminates external feedback resistors but lacks output adjustability for multi-rail systems. | Select when fixed 1.2-V rail is required and board space for feedback network must be minimized. |
| TLS850F0TESV33 | 500-mA output, integrated watchdog timer and reset generator; TO-263-7 package. | Targets safety-critical ASIL-B domains; includes diagnostic features absent in TLV76790QWDRBRQ1. | Choose when functional safety compliance (ISO 26262) and system-level supervision are mandatory. |
Compared with TLV76712QWDRBRQ1, TLV76790QWDRBRQ1 offers output flexibility at the cost of two external resistors; versus TLS850F0TESV33, it trades integrated diagnostics for higher current and lower quiescent power - making it optimal for non-safety-critical, high-efficiency bias rails.
Availability
TLV76790QWDRBRQ1 is available at Aetrix Electronics and suitable for automotive head units, on-board chargers, and SiC gate driver bias circuits requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for TLV76790QWDRBRQ1 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 solutions.
The TLV767-Q1 product line delivers high-PSRR, low-IQ linear regulators engineered specifically for demanding automotive subsystems where precision, reliability, and thermal resilience are critical.
FAQ
What is the maximum input voltage rating for TLV76790QWDRBRQ1?
The absolute maximum input voltage for TLV76790QWDRBRQ1 is 18 V, though recommended operation is limited to 16 V. Exceeding 18 V risks permanent damage per the Absolute Maximum Ratings table. Operation at 16 V is supported across the full –40°C to +125°C ambient range, with thermal derating applied above 125°C junction temperature.
Does TLV76790QWDRBRQ1 support remote voltage sensing?
No, TLV76790QWDRBRQ1 does not support remote sensing. It is the adjustable version of the TLV767-Q1 family and uses the FB pin for local feedback only. Remote sensing is implemented only in fixed-output variants (e.g., TLV76712QWDRBRQ1) via the SNS pin - a function not present in TLV76790QWDRBRQ1's pinout or internal architecture.
What is the minimum output capacitor required for stability with TLV76790QWDRBRQ1?
TLV76790QWDRBRQ1 is stable with a minimum 1-µF ceramic output capacitor having ESR ≤500 mΩ. The datasheet confirms stability down to 0.5 µF effective capacitance, but 1 µF is the recommended minimum for robust phase margin across temperature and load. Tantalum or aluminum electrolytic capacitors are not required.
How does the enable pin (EN) behave when left unconnected on TLV76790QWDRBRQ1?
When left floating, the EN pin of TLV76790QWDRBRQ1 is pulled high internally via a 200–800 nA current source, enabling the regulator by default. This allows simplified implementation in always-on applications. To disable the device, EN must be driven below 0.4 V; pulling it to GND achieves full shutdown with 4 µA max quiescent current.
Is TLV76790QWDRBRQ1 compatible with standard WSON-8 reflow profiles?
Yes, TLV76790QWDRBRQ1 complies with IPC/JEDEC J-STD-020 moisture sensitivity level 2a and supports standard lead-free reflow profiles (peak 260°C). Its wettable flanks enable reliable solder joint inspection using automated optical inspection (AOI), and the 3.0 mm × 3.0 mm footprint matches industry-standard WSON-8 land patterns.
TLV76790QWDRBRQ1 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):
- 16V
- Voltage - Output (Min/Fixed):
- 9V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.5V @ 1A
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 95 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Current Limit, Enable, Soft Start
- Protection Features:
- Over Current, Over Temperature, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 8-SON (3x3)
TLV76790QWDRBRQ1 FAQ
1.How can I place an order for TLV76790QWDRBRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV76790QWDRBRQ1 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 TLV76790QWDRBRQ1 reliable?
The price and inventory of TLV76790QWDRBRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV76790QWDRBRQ1 is usually 5 days.
3.What payment methods are accepted for TLV76790QWDRBRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV76790QWDRBRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV76790QWDRBRQ1?
TLV76790QWDRBRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV76790QWDRBRQ1 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 TLV76790QWDRBRQ1?
For technical support, including TLV76790QWDRBRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV76790QWDRBRQ1 requirements.
6.How does Aetrix verify that TLV76790QWDRBRQ1 is sourced from the original manufacturer or authorized distributors?
All TLV76790QWDRBRQ1 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 TLV76790QWDRBRQ1 meets industry standards.
7.What is the process for return or replacement of TLV76790QWDRBRQ1?
All TLV76790QWDRBRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLV76790QWDRBRQ1, 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 TLV76790QWDRBRQ1 part is unused and in its original packaging.
Return procedure for TLV76790QWDRBRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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