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Texas Instruments TPS76925QDBVRQ1
- Part No.:
- TPS76925QDBVRQ1
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TPS76925QDBVRQ1.pdf
- Description:
- IC REG LINEAR 2.5V 100MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,863
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Product details
Overview
TPS76925QDBVRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-qualified 100mA low-dropout linear regulator delivering a fixed 2.5V output. It operates from 2.5V to 16V input, features 1.2% output accuracy over load and temperature, 150mV typical dropout at 100mA, integrated thermal shutdown and overcurrent protection, and supports stable operation with ≥2.2µF output capacitance. It powers MCU bias rails and SiC gate drivers in ADAS modules.
For engineers reviewing the TPS76925QDBVRQ1 datasheet, TPS76925QDBVRQ1 pinout, TPS76925QDBVRQ1 application, or TPS76925QDBVRQ1 equivalent, key selection criteria include its 2.5V fixed output, 16V max input, 1.2% accuracy, 46dB PSRR at 1MHz, and SOT-23-5 package compatibility with automotive thermal and reliability requirements.
Technical Context
The TPS76925QDBVRQ1 implements a PMOS pass transistor architecture enabling low dropout and high PSRR. Its internal soft-start (750µs typical) limits inrush current, reducing required input capacitance. The device uses a precision bandgap reference and error amplifier to maintain regulation across –40°C to +125°C ambient.
It integrates undervoltage lockout (UVLO) with 2.2V rising threshold and 1.9V falling threshold, plus enable logic with 0.415V low-level and 1.6V high-level thresholds. Thermal shutdown activates at 173°C junction temperature and resets at 157°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V ±1.2% over load and temperature - ensures stable MCU core voltage under automotive transients. |
| Input Voltage Range | 2.5V to 16V - supports direct connection to 12V battery rail with headroom for load dump. |
| Max Output Current | 100mA - sufficient for low-power microcontrollers, sensors, and gate drivers. |
| Dropout Voltage | 150mV typical at 100mA - enables regulation down to 2.65V input while maintaining 2.5V output. |
| PSRR @ 1MHz | 46dB - attenuates switching noise from upstream DC/DC converters, minimizing post-regulation filtering. |
| Quiescent Current | 50–95µA (fixed version, IOUT = 0mA) - enables low-power always-on subsystems without excessive battery drain. |
| Thermal Resistance | RθJA = 178.6°C/W (SOT-23-5) - defines power dissipation limit of ~335mW at TA = 125°C with standard PCB layout. |
Pinout & Package
TPS76925QDBVRQ1 is housed in a 5-pin SOT-23 (DBV) package measuring 2.9mm × 2.8mm, with RθJA = 178.6°C/W. The package is surface-mount, lead-free, and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Input supply | Accepts 2.5V–16V input; requires ≥1µF ceramic capacitor placed adjacent to IN/GND pins. |
| 2 - GND | Ground reference | Common return path for input, output, and internal circuitry; must be low-impedance connection. |
| 3 - EN | Enable control | Active-low logic input; <0.415V disables regulator, >1.6V enables; supports system-level power sequencing. |
| 4 - FB/NC | Feedback / No Connect | No connection (NC) for fixed-output variants like TPS76925QDBVRQ1; must remain unconnected and floating. |
| 5 - OUT | Regulated output | Delivers 2.5V ±1.2%; requires ≥2.2µF ceramic output capacitor with ESR ≤3Ω for stability. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive operation from –40°C to +125°C ambient, meeting stringent reliability and lifetime requirements. |
| Integrated fault protection | Thermal shutdown (173°C trip) and overcurrent limiting (~370–450mA) prevent damage during fault conditions. |
| Internal soft-start | 750µs typical startup time reduces input inrush current, allowing smaller input capacitors and easing system power-up sequencing. |
| Low-noise regulation | 165µVR RMS output noise (300Hz–50kHz, 100mA load) supports noise-sensitive analog and RF circuits. |
| UVLO with hysteresis | 2.2V turn-on / 1.9V turn-off thresholds with 0.13V hysteresis prevent oscillation during brownout conditions. |
Applications
| ADAS Camera Module Power | Automotive Infotainment MCU Bias |
|---|---|
Use Scenario: Powers image signal processor (ISP) and CMOS image sensor in forward-facing ADAS camera. IC Role / Device Role / Timing Role: Provides clean, regulated 2.5V bias for sensor analog front-end and ISP core logic. Use Value: 46dB PSRR at 1MHz suppresses switching noise from 2MHz buck converter, preventing image artifacts. | Use Scenario: Supplies 2.5V core voltage to ARM Cortex-M7 MCU in digital instrument cluster. IC Role / Device Role / Timing Role: Low-quiescent LDO delivering stable voltage during stop-start engine cycles. Use Value: 1.2% output accuracy and UVLO ensure reliable boot and operation across battery voltage swings (6V–16V). |
| SiC Gate Driver Bias | Automotive Telematics GNSS Receiver |
Use Scenario: Generates isolated 2.5V logic supply for high-side SiC MOSFET gate driver IC. IC Role / Device Role / Timing Role: Regulates auxiliary rail for level-shifting and driver logic in traction inverter control board. Use Value: 150mV dropout enables operation from 3.3V intermediate rail, preserving margin for transient response. | Use Scenario: Powers low-noise LNA and GPS baseband IC in vehicle telematics unit. IC Role / Device Role / Timing Role: Ultra-low-noise 2.5V source for RF signal chain requiring minimal phase noise impact. Use Value: 165µVR RMS noise (100mA) meets GNSS receiver sensitivity requirements without additional filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS76933QDBVRQ1 | Fixed 3.3V output; identical package, thermal, and electrical specs except VOUT and feedback configuration. | Used where system requires 3.3V logic rail instead of 2.5V; not interchangeable without schematic change. | Select when 3.3V bias is needed for I/O or peripheral interfaces; same footprint and layout. |
| TLV73325PDBVR | Lower IQ (45µA typ), lower dropout (130mV at 100mA), but only AEC-Q100 Grade 2 (–40°C to +105°C); no integrated UVLO. | Suitable for non-critical automotive zones (e.g., cabin electronics) but not powertrain or ADAS due to temperature and feature gaps. | Choose for cost-sensitive, lower-temperature applications where UVLO and Grade 1 are not mandatory. |
Compared with TPS76933QDBVRQ1, the TPS76925QDBVRQ1 provides 2.5V output for core logic, while TLV73325PDBVR offers lower quiescent current but lacks Grade 1 qualification and UVLO-making it unsuitable for safety-critical ADAS use cases.
Availability
TPS76925QDBVRQ1 is available at Aetrix Electronics and suitable for automotive ADAS modules, infotainment systems, and powertrain control units requiring stable component supply, AEC-Q100 compliance, and extended temperature operation.
Supply support for TPS76925QDBVRQ1 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 TPS769-Q1 product line delivers AEC-Q100 qualified LDO regulators optimized for automotive subsystems requiring high reliability, wide input range, and robust fault protection in harsh environments.
FAQ
What is the maximum input voltage rating for the TPS76925QDBVRQ1?
The TPS76925QDBVRQ1 has an absolute maximum input voltage of 18V, with recommended operating range up to 16V. This allows direct connection to 12V automotive battery rails including load-dump transients. Exceeding 18V risks permanent damage per absolute maximum ratings.
Does the TPS76925QDBVRQ1 require an external feedback resistor network?
No, the TPS76925QDBVRQ1 is a fixed-output 2.5V regulator. Pin 4 (FB/NC) is a no-connect terminal and must remain unconnected. External resistors are only required for adjustable versions like TPS76901-Q1.
What output capacitor value and type are required for stable operation of the TPS76925QDBVRQ1?
The TPS76925QDBVRQ1 requires a minimum 2.2µF ceramic output capacitor with ESR ≤3Ω. X7R or X5R dielectrics are recommended. Larger values improve transient response but are not required for basic stability.
How does the enable (EN) pin function on the TPS76925QDBVRQ1?
The EN pin is active-low: driving it below 0.415V disables the regulator (high-impedance output), while pulling it above 1.6V enables regulation. Internal pull-down ensures default-off state if left unconnected, supporting safe power-up sequencing.
Is the TPS76925QDBVRQ1 compatible with lead-free reflow soldering processes?
Yes, the TPS76925QDBVRQ1 uses a lead-free, RoHS-compliant SOT-23-5 (DBV) package rated for standard Pb-free reflow profiles (JEDEC J-STD-020). Peak temperature tolerance is 260°C for 30 seconds, matching industry-standard assembly requirements.
TPS76925QDBVRQ1 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):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 100mA
- Current - Quiescent (Iq):
- 28 µA
- Current - Supply (Max):
- -
- 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
TPS76925QDBVRQ1 FAQ
1.How can I place an order for TPS76925QDBVRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS76925QDBVRQ1 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 TPS76925QDBVRQ1 reliable?
The price and inventory of TPS76925QDBVRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS76925QDBVRQ1 is usually 5 days.
3.What payment methods are accepted for TPS76925QDBVRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS76925QDBVRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS76925QDBVRQ1?
TPS76925QDBVRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS76925QDBVRQ1 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 TPS76925QDBVRQ1?
For technical support, including TPS76925QDBVRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS76925QDBVRQ1 requirements.
6.How does Aetrix verify that TPS76925QDBVRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS76925QDBVRQ1 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 TPS76925QDBVRQ1 meets industry standards.
7.What is the process for return or replacement of TPS76925QDBVRQ1?
All TPS76925QDBVRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS76925QDBVRQ1, 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 TPS76925QDBVRQ1 part is unused and in its original packaging.
Return procedure for TPS76925QDBVRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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