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Texas Instruments TPS76927QDBVRG4Q1
- Part No.:
- TPS76927QDBVRG4Q1
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TPS76927QDBVRG4Q1.pdf
- Description:
- IC REG LINEAR 2.7V 100MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,278
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Product details
Overview
TPS76927QDBVRG4Q1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-qualified 100mA low-dropout linear regulator with fixed 2.7V output, 2.5V–16V input range, 150mV typical dropout at 100mA, ±1.2% output accuracy over load and temperature, and integrated thermal/overcurrent protection in a 5-pin SOT-23 package. It powers MCUs, SiC gate drivers, and microphones in hybrid powertrain systems.
For engineers reviewing the TPS76927QDBVRG4Q1 datasheet, TPS76927QDBVRG4Q1 pinout, TPS76927QDBVRG4Q1 application, or TPS76927QDBVRG4Q1 equivalent, key selection criteria include its 1.2% output accuracy, 46dB PSRR at 1MHz, 750µs internal soft-start, UVLO thresholds (2.2V rise / 1.9V fall), and compatibility with ≥2.2µF ceramic output capacitors for stable operation in automotive ADAS and infotainment modules.
Technical Context
The TPS76927QDBVRG4Q1 implements a PMOS pass transistor architecture enabling low dropout and high PSRR. Its feedback loop uses a precision 1.2V reference and error amplifier to maintain regulation across –40°C to +125°C ambient temperature.
It features active enable control with 0.415V low-level and 1.6V high-level thresholds, under-voltage lockout with 0.13V hysteresis, and thermal shutdown activation at 173°C with 157°C reset. The device supports stable operation with output capacitors as low as 2.2µF and ESR down to 0Ω.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 2.7V ±1.2% over full load (0–100mA) and temperature (–40°C to +125°C) |
| Input voltage range | 2.5V to 16V - supports direct connection to 12V battery rails with up to 18V absolute max rating |
| Dropout voltage | 150mV typical at 100mA - enables regulation from 2.85V input to sustain 2.7V output |
| PSRR | 46dB at 1MHz - suppresses switching noise from upstream DC/DC converters without additional filtering |
| Quiescent current | 50–95µA (fixed version, IOUT = 0mA) - minimizes standby power loss in always-on automotive modules |
| Soft-start time | 750µs typical - limits inrush current during power-up, reducing required input capacitance |
| UVLO threshold | Rising: 2.2V ±0.2V; falling: 1.9V ±0.17V - prevents erratic operation during cold-crank or brownout conditions |
Pinout & Package
Package: 5-pin SOT-23 (DBV), 2.9mm × 2.8mm footprint, RθJA = 178.6°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Power input | Accepts 2.5V–16V supply; requires ≥1µF input capacitor placed adjacent to IN/GND pins |
| 2 - GND | Ground reference | Common return path for input, output, and internal circuitry; must be low-impedance PCB plane |
| 3 - EN | Enable control | Active-high logic input; <0.415V disables regulator, >1.6V enables; supports system-level power sequencing |
| 4 - FB/NC | Feedback / No-connect | No connection (fixed-output variant); must remain unconnected per datasheet to avoid regulation error |
| 5 - OUT | Regulated output | Delivers 2.7V ±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 use from –40°C to +125°C ambient, supporting safety-critical power domains |
| High-accuracy output regulation | ±1.2% tolerance over full load and temperature eliminates need for external trimming in precision biasing |
| Low-noise, high-PSRR performance | 46dB rejection at 1MHz and 165µVRMS output noise (10Hz–100kHz) preserve signal integrity in sensor and audio paths |
| Integrated fault protection | Thermal shutdown (173°C trip) and current limiting (370–450mA) prevent damage during overload or ambient overheating |
| UVLO with hysteresis | 2.2V rising / 1.9V falling thresholds with 0.13V hysteresis ensure clean startup and prevent oscillation near battery undervoltage |
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 under stop/start and load-dump conditions. IC Role / Device Role / Timing Role: Provides clean, regulated 2.7V bias for analog front-end and digital core of vision SoC. Use Value: 46dB PSRR at 1MHz attenuates switching noise from 2MHz buck converter, eliminating post-regulation LC filters and saving board space. | Use Scenario: Supplies 2.7V to application MCU and display controller in head-unit infotainment system with extended temperature cycling. IC Role / Device Role / Timing Role: Delivers stable, low-noise supply for real-time OS execution and touch interface timing. Use Value: ±1.2% output accuracy ensures consistent ADC reference and clock buffer performance across –40°C to +125°C ambient. |
| SiC Gate Driver Auxiliary Supply | Instrument Cluster Microphone Bias |
Use Scenario: Generates isolated 2.7V auxiliary rail for isolated gate driver ICs controlling silicon carbide (SiC) power modules in EV inverters. IC Role / Device Role / Timing Role: Supplies low-noise, fast-transient power to level-shift and drive circuits in high-side gate driver stage. Use Value: 750µs soft-start limits inrush into gate driver bootstrap capacitors, preventing input rail sag during power-up sequencing. | Use Scenario: Provides ultra-low-noise 2.7V bias to MEMS microphone preamplifier in digital instrument cluster with voice command capability. IC Role / Device Role / Timing Role: Delivers quiet analog supply for microphone signal chain, minimizing audible hiss in cabin audio capture. Use Value: 165µVRMS output noise (10Hz–100kHz) meets automotive-grade acoustic SNR requirements without added RC 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 otherwise | Not suitable for 2.7V-dependent loads (e.g., specific MCU I/O banks or analog sensors) | Select only when target system requires 3.3V instead of 2.7V; pinout and layout are identical |
| TLV73327PDBVR | Lower quiescent current (45µA typ), lower dropout (130mV at 100mA), but not AEC-Q100 qualified | Restricted to non-automotive industrial or consumer applications due to lack of automotive qualification | Use where automotive qualification is unnecessary and ultra-low IQ is prioritized over fault coverage |
Compared with TPS76933QDBVRQ1 and TLV73327PDBVR, the TPS76927QDBVRG4Q1 uniquely delivers AEC-Q100 Grade 1 compliance with fixed 2.7V output, making it the only drop-in solution for automotive systems requiring both functional safety alignment and precise 2.7V biasing.
Availability
TPS76927QDBVRG4Q1 is available at Aetrix Electronics and suitable for hybrid powertrain control units, ADAS camera modules, infotainment head-units, and instrument cluster designs requiring stable component supply across extended automotive temperature ranges and long production lifecycles.
Supply support for TPS76927QDBVRG4Q1 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 voltage tolerance, and robust fault protection in harsh environments.
FAQ
What is the maximum input voltage rating for the TPS76927QDBVRG4Q1?
The TPS76927QDBVRG4Q1 has an absolute maximum input voltage of 18V, with recommended operating range from 2.5V to 16V. This allows direct integration with 12V automotive battery rails while surviving load-dump transients up to ISO 7637-2 Pulse 5a. Exceeding 18V risks permanent damage per the Absolute Maximum Ratings table.
Does the TPS76927QDBVRG4Q1 require an external feedback resistor network?
No, the TPS76927QDBVRG4Q1 is a fixed-output 2.7V regulator and does not require external feedback resistors. Pin 4 (FB/NC) is designated as no-connect for this variant and must remain unconnected; connecting it would disrupt regulation. Only adjustable versions like TPS76901-Q1 use the FB pin.
What output capacitor value and type are required for stable operation of the TPS76927QDBVRG4Q1?
The TPS76927QDBVRG4Q1 requires a minimum 2.2µF ceramic output capacitor with ESR ≤3Ω for stability. TI recommends X5R or X7R dielectrics; tantalum or aluminum electrolytics are not supported. The capacitor must be placed adjacent to the OUT and GND pins to minimize parasitic inductance and ensure transient response integrity.
How does the enable (EN) pin function on the TPS76927QDBVRG4Q1?
The EN pin on the TPS76927QDBVRG4Q1 is an active-high digital control input. Driving EN below 0.415V disables the regulator (high-impedance output), while driving it above 1.6V enables regulation. The pin draws less than 0.02µA in standby and supports direct interfacing with 1.8V/3.3V microcontroller GPIOs without level-shifting.
Is the TPS76927QDBVRG4Q1 compatible with lead-free PCB assembly processes?
Yes, the TPS76927QDBVRG4Q1 is RoHS-compliant and qualified for standard lead-free reflow profiles (J-STD-020, peak temperature 260°C). Its SOT-23 (DBV) package uses matte tin plating and withstands multiple reflow cycles without degradation to thermal or electrical performance.
TPS76927QDBVRG4Q1 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):
- 2.7V
- 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
TPS76927QDBVRG4Q1 FAQ
1.How can I place an order for TPS76927QDBVRG4Q1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS76927QDBVRG4Q1 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 TPS76927QDBVRG4Q1 reliable?
The price and inventory of TPS76927QDBVRG4Q1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS76927QDBVRG4Q1 is usually 5 days.
3.What payment methods are accepted for TPS76927QDBVRG4Q1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS76927QDBVRG4Q1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS76927QDBVRG4Q1?
TPS76927QDBVRG4Q1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS76927QDBVRG4Q1 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 TPS76927QDBVRG4Q1?
For technical support, including TPS76927QDBVRG4Q1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS76927QDBVRG4Q1 requirements.
6.How does Aetrix verify that TPS76927QDBVRG4Q1 is sourced from the original manufacturer or authorized distributors?
All TPS76927QDBVRG4Q1 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 TPS76927QDBVRG4Q1 meets industry standards.
7.What is the process for return or replacement of TPS76927QDBVRG4Q1?
All TPS76927QDBVRG4Q1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS76927QDBVRG4Q1, 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 TPS76927QDBVRG4Q1 part is unused and in its original packaging.
Return procedure for TPS76927QDBVRG4Q1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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