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Texas Instruments TPS76915QDBVRQ1
- Part No.:
- TPS76915QDBVRQ1
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TPS76915QDBVRQ1.pdf
- Description:
- IC REG LINEAR 1.5V 100MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,085
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Product details
Overview
TPS76915QDBVRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-qualified 100mA low-dropout linear regulator delivering a fixed 1.5V output. It operates from 2.5V to 16V input, features 150mV typical dropout at 100mA, ±1.2% output accuracy over load and temperature, and integrated thermal shutdown and overcurrent protection. It powers MCUs, SiC gate drivers, and sensors in ADAS modules.
For engineers reviewing the TPS76915QDBVRQ1 datasheet, TPS76915QDBVRQ1 pinout, TPS76915QDBVRQ1 application, or TPS76915QDBVRQ1 equivalent, key selection criteria include its 1.5V fixed output, 16V max input, 1.2% accuracy, SOT-23-5 package, and automotive-grade thermal performance up to 125°C ambient.
Technical Context
The TPS76915QDBVRQ1 implements a PMOS pass transistor architecture enabling low dropout and high PSRR (46dB at 1MHz). Its internal soft-start circuit limits inrush current with a 750µs typical ramp time, reducing required input capacitance.
It includes undervoltage lockout (UVLO) with 2.2V rising and 1.9V falling thresholds, and enable logic with 0.415V low-level and 1.6V high-level thresholds - all specified across −40°C to 125°C ambient operation per AEC-Q100 Grade 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 1.5V ±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 automotive rails and accommodates cold-crank transients |
| Dropout voltage | 150mV typical at 100mA - enables regulation down to VIN = 1.65V while maintaining 1.5V output |
| PSRR | 46dB at 1MHz - suppresses switching noise from upstream DC/DC converters, minimizing post-regulation filtering |
| Quiescent current | 50–95µA (fixed version, IOUT = 0mA) - enables ultra-low-power standby modes in always-on systems |
| Thermal shutdown | Activates at 173°C junction, resets at 157°C - protects against sustained overload or poor PCB thermal design |
| Enable threshold | High-level enable ≥1.6V, low-level disable ≤0.415V - compatible with 1.8V/3.3V logic without level-shifting |
Pinout & Package
TPS76915QDBVRQ1 is housed in a 5-pin SOT-23 (DBV) package measuring 2.9mm × 2.8mm with RθJA = 178.6°C/W on JEDEC 2s2p board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Input supply | Accepts 2.5V–16V; requires ≥1µF ceramic capacitor placed adjacent to IN/GND pins for stability |
| 2 - GND | Ground reference | Common return path for input, output, and internal circuitry; must be low-impedance connection |
| 3 - EN | Enable control | Active-high logic input; drives device ON when ≥1.6V, OFF when ≤0.415V; draws ≤0.02µA in OFF state |
| 4 - FB/NC | Feedback / No-connect | No connection (NC) for fixed-output variants like TPS76915QDBVRQ1; must remain unconnected and floating |
| 5 - OUT | Regulated output | Delivers 1.5V ±1.2%; requires ≥2.2µF ceramic output capacitor with ESR ≤3Ω for stable operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40°C to +125°C ambient operation in automotive powertrain and ADAS applications |
| Internal soft-start | 750µs typical output ramp time - prevents input voltage sag and reduces stress on upstream converters |
| Low-noise regulation | 165µVRMS output noise (300Hz–50kHz, 100mA load) - suitable for noise-sensitive analog and RF subsystems |
| Wide-input UVLO | Hysteresis of 0.13V between 2.2V (rising) and 1.9V (falling) - ensures clean startup/shutdown during battery brownouts |
| Stable with low-ESR ceramics | Supports 0–3Ω output capacitor ESR - eliminates need for tantalum or aluminum electrolytic capacitors |
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 wide temperature and input voltage variation. IC Role / Device Role / Timing Role: Primary 1.5V bias rail for digital core logic and I/O interfaces. Use Value: 1.2% output accuracy and 46dB PSRR at 1MHz ensure stable clock domain operation and minimal jitter in pixel data streams. | Use Scenario: Supplies 1.5V core voltage to infotainment system microcontrollers during vehicle start-stop cycles with battery voltage dipping to 6V. IC Role / Device Role / Timing Role: Low-quiescent, enable-controlled LDO providing always-on logic supply with fast wake-up. Use Value: 50µA quiescent current in standby and 750µs soft-start prevent brownout during rapid enable transitions. |
| SiC Gate Driver Auxiliary Supply | Cluster Display Timing IC Bias |
Use Scenario: Generates isolated 1.5V logic supply for silicon carbide half-bridge gate drivers in electric powertrain inverters. IC Role / Device Role / Timing Role: Secondary bias source referenced to high-side switch node; requires high PSRR to reject switching noise. Use Value: 16V absolute max input rating and 46dB PSRR at 1MHz allow direct tie-in to 12V auxiliary rail while rejecting 100kHz–1MHz switching artifacts. | Use Scenario: Provides precision 1.5V reference to timing controller ICs in digital instrument clusters operating across −40°C to 85°C. IC Role / Device Role / Timing Role: Stable voltage reference for PLLs and display interface serializers. Use Value: ±1.2% output accuracy over temperature ensures consistent pixel clock generation and eliminates display sync drift. |
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, pinout, and specs otherwise | Not suitable for 1.5V logic domains; used where higher VDD is required | Select only if system requires 3.3V - not a drop-in replacement for 1.5V use cases |
| TLV73315PDBVR | 1.5V fixed output, 300mA rating, 225mV dropout at 300mA, 1.5% accuracy, SOT-23-5 | Higher current capability but lower accuracy and no AEC-Q100 qualification | Use in non-automotive industrial applications needing >100mA; avoid in safety-critical automotive designs |
Compared with TPS76933QDBVRQ1 and TLV73315PDBVR, the TPS76915QDBVRQ1 uniquely delivers AEC-Q100 Grade 1 compliance, 1.2% output accuracy, and 16V input support in a 100mA 1.5V LDO - making it the only qualified option for demanding automotive 1.5V bias rails.
Availability
TPS76915QDBVRQ1 is available at Aetrix Electronics and suitable for hybrid/electric powertrain systems, ADAS camera modules, infotainment MCU biasing, and cluster display timing circuits requiring stable component supply across extended temperature and automotive lifecycle requirements.
Supply support for TPS76915QDBVRQ1 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, embedded processing, and automotive ICs, with decades of leadership in power management innovation.
The TPS769-Q1 product line delivers AEC-Q100-qualified, low-noise, wide-input LDOs optimized for automotive subsystems including ADAS, powertrain, and infotainment - emphasizing reliability, thermal robustness, and noise immunity.
FAQ
What is the maximum input voltage rating for TPS76915QDBVRQ1?
The TPS76915QDBVRQ1 has an absolute maximum input voltage of 18V, with recommended operation up to 16V. This allows reliable operation during automotive cold-crank events where battery voltage may dip then surge. Exceeding 18V risks permanent damage per the Absolute Maximum Ratings table in the official datasheet.
Does TPS76915QDBVRQ1 require an external feedback resistor network?
No. The TPS76915QDBVRQ1 is a fixed-output variant with internally set 1.5V regulation. Pin 4 (FB/NC) is designated "No Connection" and must remain unconnected - unlike adjustable versions such as TPS76901QDBVRQ1 which require external resistors.
What output capacitor value is required for stable operation of TPS76915QDBVRQ1?
The TPS76915QDBVRQ1 requires a minimum 2.2µF ceramic output capacitor with ESR ≤3Ω. This is lower than legacy LDOs due to its enhanced stability compensation - enabling smaller, more reliable MLCC-based designs without tantalum or electrolytic capacitors.
How does the enable function operate on TPS76915QDBVRQ1?
The EN pin on TPS76915QDBVRQ1 is active-high: device enables when voltage ≥1.6V and disables when ≤0.415V. Input leakage is ≤0.02µA in the disabled state, supporting ultra-low-power system sleep modes. No pull-up is required - direct connection to MCU GPIO suffices.
Is TPS76915QDBVRQ1 qualified for automotive safety-critical applications?
Yes. TPS76915QDBVRQ1 is AEC-Q100 Grade 1 qualified (−40°C to +125°C ambient), with built-in thermal shutdown (173°C trip), overcurrent protection, and UVLO - meeting baseline requirements for ASIL-B supporting functions in ADAS and powertrain systems per ISO 26262 guidelines.
TPS76915QDBVRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 10V
- Voltage - Output (Min/Fixed):
- 1.5V
- 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
TPS76915QDBVRQ1 FAQ
1.How can I place an order for TPS76915QDBVRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS76915QDBVRQ1 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 TPS76915QDBVRQ1 reliable?
The price and inventory of TPS76915QDBVRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS76915QDBVRQ1 is usually 5 days.
3.What payment methods are accepted for TPS76915QDBVRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS76915QDBVRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS76915QDBVRQ1?
TPS76915QDBVRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS76915QDBVRQ1 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 TPS76915QDBVRQ1?
For technical support, including TPS76915QDBVRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS76915QDBVRQ1 requirements.
6.How does Aetrix verify that TPS76915QDBVRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS76915QDBVRQ1 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 TPS76915QDBVRQ1 meets industry standards.
7.What is the process for return or replacement of TPS76915QDBVRQ1?
All TPS76915QDBVRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS76915QDBVRQ1, 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 TPS76915QDBVRQ1 part is unused and in its original packaging.
Return procedure for TPS76915QDBVRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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