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Texas Instruments TPS76316QDBVRG4Q1
- Part No.:
- TPS76316QDBVRG4Q1
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TPS76316QDBVRG4Q1.pdf
- Description:
- IC REG LINEAR 1.6V 150MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:431
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Product details
Overview
TPS76316QDBVRG4Q1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-grade low-dropout linear regulator delivering 1.6V fixed output at up to 150mA, with input voltage range 2.7V–10V, ±1.5% output accuracy (typical), and 175mV dropout (typical at 150mA). It powers microcontrollers and sensors in high-voltage battery systems and instrument clusters where thermal robustness (–40°C to +150°C TJ) and ESD resilience are critical.
For engineers reviewing the TPS76316QDBVRG4Q1 datasheet, TPS76316QDBVRG4Q1 pinout, TPS76316QDBVRG4Q1 application, or TPS76316QDBVRG4Q1 equivalent, key selection criteria include its 5-pin SOT-23 package, active over-shoot pulldown protection, logic-enabled sleep mode (≤1μA standby), and compatibility with low-ESR ceramic capacitors (0Ω–1Ω).
Technical Context
The TPS76316QDBVRG4Q1 implements a bandgap-referenced feedback control loop with internal 1.2V reference and UVLO circuitry. Its architecture integrates thermal shutdown, current limiting (0.8–1.05A), and active output pulldown during disable-enabling safe power sequencing in traction inverters and 2-/3-wheeler drive systems.
Unlike legacy variants, this "new chip" version features soft-start for controlled inrush current, improved line regulation (0.01%/V), lower quiescent current (65μA at zero load), and reduced thermal resistance (RθJA = 178.6°C/W), making it suitable for space-constrained automotive modules operating continuously at junction temperatures up to 150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.6V ±1.5% (typical); meets tight supply requirements of automotive MCUs and CAN transceivers. |
| Max Output Current | 150mA continuous; supports dual-core microcontrollers and sensor signal chains without external boost. |
| Input Voltage Range | 2.7V to 10V; accommodates wide automotive battery transients including cold-crank (6.5V min) and load-dump (up to 10V). |
| Dropout Voltage | 175mV (typical at 150mA); enables stable 1.6V output even when VIN drops to 1.775V-critical for start-stop systems. |
| Quiescent Current | 65μA (typical at IOUT = 0mA); extends battery life in always-on vehicle modules like telematics and body controllers. |
| Operating Junction Temp | –40°C to +150°C; qualified per AEC-Q100 Grade 1 for under-hood and powertrain applications. |
| ESD Rating | CDM Level C4 (±1000V); ensures robustness against assembly-line electrostatic discharge events. |
Pinout & Package
TPS76316QDBVRG4Q1 is housed in a 5-pin SOT-23 (DBV) package measuring 2.9mm × 2.8mm, optimized for high-density automotive PCBs with RθJA = 178.6°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 1) | Input supply | Accepts 2.7V–10V; requires ≥0.47µF ceramic capacitor to GND for stability and transient response. |
| GND (Pin 2) | Ground reference | Low-impedance return path; must be connected directly to system ground plane to minimize noise coupling. |
| EN (Pin 3) | Enable control | Active-high logic input (VIH = 0.85V min); ties to VIN if unused; enables <1μA standby mode when pulled low. |
| NC (Pin 4) | No connection | Not bonded internally; left unconnected-no feedback network required for fixed-output configuration. |
| OUT (Pin 5) | Regulated output | Delivers 1.6V ±1.5%; requires ≥1µF (min) ceramic capacitor with ESR ≤1Ω for stability and load transient suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Active over-shoot pulldown | Internally discharges OUT during disable to prevent bus contention in multi-rail systems-eliminates need for external pulldown resistors. |
| Soft-start circuit | Controls inrush current during power-up, reducing required input capacitance and preventing upstream supply sag in shared rail designs. |
| Logic-enabled sleep mode | Reduces quiescent current to ≤1μA at TJ = 25°C, enabling ultra-low-power operation in always-on vehicle subsystems. |
| Thermal & overcurrent protection | Auto-recovering shutdown prevents damage during sustained overload or ambient temperature excursions beyond 150°C. |
| AEC-Q100 Grade 1 qualification | Validated for automotive use across –40°C to +150°C TJ, including HBM ±2000V and CDM ±1000V ESD stress testing. |
Applications
| Vehicle Instrument Cluster | High-Voltage Battery System |
|---|---|
Use Scenario: Powering LCD drivers, backlight ICs, and microcontroller peripherals in digital dashboards exposed to under-hood thermal cycling. IC Role / Device Role / Timing Role: Primary 1.6V LDO supplying core logic rails for cluster SoCs and display timing controllers. Use Value: Stable 1.6V output with ±1.5% accuracy ensures consistent display refresh rates and eliminates visual artifacts during battery voltage dips. | Use Scenario: Regulating auxiliary power for BMS monitoring circuits in 48V mild-hybrid and 800V EV battery packs. IC Role / Device Role / Timing Role: Post-regulator converting intermediate DC-DC output to precise 1.6V for analog front-end sensors and ADC references. Use Value: 175mV dropout allows operation down to 1.775V input-maintaining sensor functionality during deep discharge or fault conditions. |
| 2-/3-Wheeler Traction Drive | Traction Inverter Control Board |
Use Scenario: Supplying gate driver bias and MCU I/O rails in compact e-scooter and electric rickshaw motor controllers. IC Role / Device Role / Timing Role: Local point-of-load regulator for isolated gate driver ICs and position encoder interfaces. Use Value: 150mA output capacity supports dual-channel isolated drivers; soft-start prevents startup current spikes that could trip upstream fuses. | Use Scenario: Powering FPGA configuration memory, isolated communication interfaces (e.g., SPI isolators), and PWM generator logic on inverter control boards. IC Role / Device Role / Timing Role: Secondary LDO providing clean 1.6V for low-noise digital logic in high-noise inverter environments. Use Value: 58dB PSRR at 1kHz suppresses switching noise from adjacent 100kHz+ inverter gate drivers, ensuring reliable FPGA boot and SPI integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS76316QDBVRQ1 | Same silicon, identical electrical specs, but shipped in standard tape-and-reel (no G4 suffix); no functional difference. | No application difference-identical thermal, electrical, and mechanical behavior in all automotive use cases. | Select TPS76316QDBVRQ1 only if packaging logistics or legacy BOM alignment require non-G4 variant. |
| TLV76316QDBVRQ1 | Lower IQ (40μA vs 65μA), same 150mA rating and 1.6V output, but rated only to 125°C TJ (not 150°C) and lacks AEC-Q100 Grade 1 certification. | Not suitable for under-hood or powertrain locations requiring full Grade 1 qualification; limited to cabin or chassis modules. | Choose TLV76316QDBVRQ1 only for cost-sensitive, non-critical cabin applications where 125°C max TJ suffices. |
Compared with TPS76316QDBVRQ1 (same die, different packaging), TPS76316QDBVRG4Q1 offers identical performance but with TI's enhanced green packaging (lead-free, RoHS-compliant marking). Versus TLV76316QDBVRQ1, it provides guaranteed 150°C operation and full AEC-Q100 Grade 1 compliance-essential for traction and battery-system deployment.
Availability
TPS76316QDBVRG4Q1 is available at Aetrix Electronics and suitable for vehicle instrument clusters, high-voltage battery management systems, and 2-/3-wheeler traction drives requiring stable component supply across extended temperature ranges and automotive lifecycle demands.
Supply support for TPS76316QDBVRG4Q1 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 decades of automotive qualification expertise and broad portfolio coverage from power management to signal chain solutions.
The TPS763-Q1 product line delivers AEC-Q100-qualified LDO regulators optimized for automotive subsystems-including instrument clusters, battery monitors, and motor controls-where reliability, thermal resilience, and precise voltage regulation are mandatory.
FAQ
What is the maximum input voltage rating for the TPS76316QDBVRG4Q1?
The TPS76316QDBVRG4Q1 has an absolute maximum input voltage of 18V for the new-chip revision, though its recommended operating range is 2.7V to 10V. This 18V rating provides margin against automotive load-dump transients, ensuring robust operation without external clamping in most 12V/48V systems. Always verify layout and capacitor derating per TI's SGLS247C datasheet Section 5.1.
Does the TPS76316QDBVRG4Q1 require an external feedback resistor network?
No, the TPS76316QDBVRG4Q1 is a fixed-output 1.6V regulator and does not require external feedback resistors. Pin 4 is labeled NC (no connection) in the datasheet, confirming internal resistor trimming. External resistors are only needed for adjustable versions like TPS76333QDBVRG4Q1-using them with TPS76316QDBVRG4Q1 would cause malfunction.
What is the minimum output capacitance required for stable operation of the TPS76316QDBVRG4Q1?
The TPS76316QDBVRG4Q1 requires a minimum output capacitance of 1µF with ESR ≤1Ω for stable operation. TI recommends 2.2µF ceramic (X7R or better) as typical design practice. The device supports zero-ESR capacitors and is compatible with multilayer ceramic capacitors (MLCCs), enabling compact, low-profile layouts in automotive modules where board space is constrained.
How does the enable (EN) pin function on the TPS76316QDBVRG4Q1?
The EN pin on the TPS76316QDBVRG4Q1 is active-high with VIH(min) = 0.85V and VIL(max) = 0.72V. Driving EN ≥0.85V enables regulation; pulling EN ≤0.15V disables the output and reduces quiescent current to ≤1μA. If unused, EN must be tied to VIN-not left floating-to ensure reliable startup and avoid erratic behavior during power sequencing.
Is the TPS76316QDBVRG4Q1 pin-compatible with other members of the TPS763xx-Q1 family?
Yes, all TPS763xx-Q1 devices-including TPS76316QDBVRG4Q1, TPS76333QDBVRG4Q1, and TPS76350QDBVRG4Q1-share identical 5-pin SOT-23 (DBV) pinout and footprint. This enables drop-in replacement across output voltages without PCB redesign, provided thermal and capacitor requirements are verified for each specific variant's load and transient profile.
TPS76316QDBVRG4Q1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 10V
- Voltage - Output (Min/Fixed):
- 1.6V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 100 µA
- Current - Supply (Max):
- 140 µA
- PSRR:
- 60dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TPS76316QDBVRG4Q1 FAQ
1.How can I place an order for TPS76316QDBVRG4Q1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS76316QDBVRG4Q1 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 TPS76316QDBVRG4Q1 reliable?
The price and inventory of TPS76316QDBVRG4Q1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS76316QDBVRG4Q1 is usually 5 days.
3.What payment methods are accepted for TPS76316QDBVRG4Q1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS76316QDBVRG4Q1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS76316QDBVRG4Q1?
TPS76316QDBVRG4Q1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS76316QDBVRG4Q1 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 TPS76316QDBVRG4Q1?
For technical support, including TPS76316QDBVRG4Q1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS76316QDBVRG4Q1 requirements.
6.How does Aetrix verify that TPS76316QDBVRG4Q1 is sourced from the original manufacturer or authorized distributors?
All TPS76316QDBVRG4Q1 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 TPS76316QDBVRG4Q1 meets industry standards.
7.What is the process for return or replacement of TPS76316QDBVRG4Q1?
All TPS76316QDBVRG4Q1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS76316QDBVRG4Q1, 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 TPS76316QDBVRG4Q1 part is unused and in its original packaging.
Return procedure for TPS76316QDBVRG4Q1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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