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Texas Instruments TPS76927DBVT
- Part No.:
- TPS76927DBVT
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TPS76927DBVT.pdf
- Description:
- IC REG LINEAR 2.7V 100MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:412
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Product details
Overview
TPS76927DBVT from Texas Instruments is a fixed-output 2.7V, 100mA low-dropout linear regulator in 5-pin SOT-23 package. It operates from 2.5V to 16V input, delivers ±1.2% output accuracy over load and temperature, features 215mV typical dropout at 100mA, integrated thermal shutdown and overcurrent protection, and supports ≥2.2μF ceramic output capacitance for stability. It powers microcontroller bias rails in HVAC control modules.
For engineers reviewing the TPS76927DBVT datasheet, TPS76927DBVT pinout, TPS76927DBVT application, or TPS76927DBVT equivalent, key selection criteria include input voltage range (2.5–16V), output accuracy (±1.2%), PSRR (46dB at 1MHz), soft-start time (750µs), and thermal performance (RθJA = 178.6°C/W).
Technical Context
The TPS76927DBVT implements a PMOS pass transistor architecture enabling low dropout and high PSRR. Its internal soft-start circuit limits inrush current during power-up, reducing required input capacitance. The device uses a precision bandgap reference and error amplifier to maintain tight output regulation across line, load, and temperature variations.
It incorporates undervoltage lockout (UVLO) with 2.2V rising threshold and 2.07V falling threshold, plus enable logic with 0.415V low-level and 1.6V high-level thresholds. Thermal shutdown activates at 173°C and resets at 157°C, ensuring safe operation under overload or ambient stress.
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 regulation from 12V industrial rails or battery-backed systems |
| Dropout Voltage | 215mV (typ) at 100mA - enables stable 2.7V output from 2.915V minimum input |
| PSRR | 46dB at 1MHz - attenuates switching noise from upstream DC/DC converters without additional filtering |
| Quiescent Current | 620µA at 100mA load - balances low-noise regulation with efficiency in always-on subsystems |
| Soft-Start Time | 750µs (typ) - controls output ramp rate to prevent system reset or brownout during startup |
| Thermal Shutdown | Triggers at 173°C junction, resets at 157°C - provides self-recovery fault protection without external circuitry |
Pinout & Package
TPS76927DBVT is housed in a 5-pin SOT-23 (DBV) package measuring 2.9mm × 2.8mm with RθJA = 178.6°C/W. Pin functions are validated per TI SLVS203F (Jan 2025) datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Input supply connection | Accepts 2.5–16V; requires ≥1µF input capacitor placed adjacent to IN/GND pins |
| 2 GND | Power ground reference | Common return path for input, output, and internal circuitry; must be low-impedance |
| 3 EN | Enable control input | Active-low logic: <0.415V disables, >1.6V enables; supports power sequencing and standby modes |
| 4 FB/NC | Feedback / No-connect | No connection (NC) for fixed-output TPS76927DBVT; must remain unconnected and floating |
| 5 OUT | Regulated output | Delivers 2.7V ±1.2%; requires ≥2.2µF ceramic output capacitor with ESR ≤3Ω |
Key Features
| Feature | Design Value |
|---|---|
| Wide input voltage range | 2.5V–16V enables single LDO use across 3.3V, 5V, and 12V intermediate rails |
| High PSRR at 1MHz | 46dB suppresses high-frequency switching noise from buck converters, reducing post-regulation filtering |
| Integrated soft-start | 750µs controlled ramp minimizes inrush current, allowing smaller input bulk capacitors |
| Low-output-capacitance stability | Stable with ≥2.2µF ceramic output cap - eliminates need for electrolytic or tantalum capacitors |
| Robust fault protection | Thermal shutdown + overcurrent limit + UVLO provide autonomous protection without external supervision |
Applications
| Residential Air Conditioner Control Board | HVAC System Microcontroller Bias |
|---|---|
Use Scenario: Powering 3.3V I/O and analog peripherals on an AC indoor unit mainboard operating from a 12V rail. IC Role / Device Role / Timing Role: Primary 2.7V bias regulator for MCU core logic and sensor interface circuitry. Use Value: 215mV dropout ensures reliable 2.7V output even as 12V rail sags to 3.0V during compressor startup. | Use Scenario: Supplying 2.7V to a temperature-sensing ADC and communication transceiver in a duct-mounted HVAC controller. IC Role / Device Role / Timing Role: Low-noise, stable voltage source for precision analog measurement and RS-485 signal integrity. Use Value: 46dB PSRR at 1MHz prevents switching noise from nearby DC/DC converters from corrupting 12-bit ADC readings. |
| Industrial Washer Motor Control Module | Transportation Onboard Diagnostic (OBD-II) Interface |
Use Scenario: Providing regulated 2.7V to a safety-critical MCU monitoring door lock, water level, and heater status. IC Role / Device Role / Timing Role: Fault-tolerant power rail with thermal and overcurrent protection for functional safety compliance. Use Value: Thermal shutdown (173°C trigger) and automatic reset (157°C) enable self-recovery during transient overloads without system reboot. | Use Scenario: Generating 2.7V for CAN transceiver logic and microcontroller wake-up circuitry in vehicle telematics units. IC Role / Device Role / Timing Role: Enable-controlled LDO supporting low-power sleep mode and fast wake-up response. Use Value: 0.9µA standby current (EN = VIN) extends battery life in always-connected OBD-II devices during ignition-off periods. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS76933DBVT | Fixed 3.3V output; identical package, pinout, and electrical specs except VOUT | Used where 3.3V logic rail is required instead of 2.7V; no PCB change needed if output voltage is the only difference | Select when system requires 3.3V instead of 2.7V; same layout, thermal, and decoupling design applies |
| MCP1700T-2702E/TT | 250mA output, 6V max input, 1.8µA quiescent current; SOT-23-3 package (no EN pin) | Lacks enable and thermal shutdown; suited for ultra-low-power, non-safety-critical consumer applications | Choose only for cost-sensitive, low-current (<100mA), low-input-voltage (<6V) designs without fault protection requirements |
Compared with TPS76933DBVT, the TPS76927DBVT offers identical robustness but targets 2.7V logic domains; versus MCP1700T-2702E/TT, it trades higher quiescent current for industrial-grade protection, wider input range, and enable control-critical for automotive and HVAC systems.
Availability
TPS76927DBVT is available at Aetrix Electronics and suitable for residential air conditioner control boards, HVAC system microcontroller bias rails, and industrial washer motor control modules requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPS76927DBVT 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and consumer markets.
The TPS769 family is designed for space-constrained, high-reliability applications requiring wide-input LDOs with integrated protection-especially in HVAC, appliance, and transportation control systems.
FAQ
What is the maximum input voltage rating for the TPS76927DBVT?
The TPS76927DBVT has an absolute maximum input voltage of 18V, with recommended continuous operation up to 16V. Exceeding 18V risks permanent damage. This 16V operating limit allows direct regulation from 12V industrial rails or battery systems with transient spikes, making the TPS76927DBVT suitable for demanding environments like HVAC control modules where input voltage stability cannot be guaranteed.
Does the TPS76927DBVT require an external feedback resistor network?
No, the TPS76927DBVT is a fixed-output 2.7V regulator and does not require external feedback resistors. Pin 4 (FB/NC) is designated as "No Connection" and must remain unconnected and floating. This simplifies design, reduces BOM count, and eliminates resistor tolerance errors-key advantages for high-volume appliance and industrial control applications where the TPS76927DBVT is commonly deployed.
What is the minimum output capacitance required for stability with the TPS76927DBVT?
The TPS76927DBVT requires a minimum output capacitance of 2.2µF ceramic with ESR ≤3Ω for stable operation. This is lower than legacy LDOs requiring ≥4.7µF, enabling smaller, more reliable, and lower-cost designs. Using a 2.2µF X7R ceramic capacitor placed close to the OUT and GND pins ensures phase margin and transient response meet specifications across –40°C to +125°C, as verified in the TPS76927DBVT datasheet.
How does the enable (EN) pin function on the TPS76927DBVT?
The EN pin on the TPS76927DBVT is active-low: driving it below 0.415V disables the regulator (high-impedance output), while pulling it above 1.6V enables regulation. This allows precise power sequencing and low-power standby modes. With only 0.9µA standby current when EN = VIN, the TPS76927DBVT supports energy-efficient designs such as OBD-II telematics units that must operate for months on vehicle battery power when ignition is off.
Is the TPS76927DBVT pin-compatible with other members of the TPS769 family?
Yes, all TPS769 DBV-packaged variants-including TPS76915DBVT, TPS76925DBVT, TPS76927DBVT, TPS76930DBVT, TPS76933DBVT, and TPS76950DBVT-are pin-compatible in the 5-pin SOT-23 (DBV) package. They share identical pinout, thermal characteristics (RθJA = 178.6°C/W), and enable/ground/input/output terminal assignments. This enables voltage-scaling flexibility across product families without PCB redesign-e.g., upgrading from TPS76927DBVT to TPS76933DBVT requires only a BOM change.
TPS76927DBVT 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TPS76927DBVT FAQ
1.How can I place an order for TPS76927DBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS76927DBVT 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 TPS76927DBVT reliable?
The price and inventory of TPS76927DBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS76927DBVT is usually 5 days.
3.What payment methods are accepted for TPS76927DBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS76927DBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS76927DBVT?
TPS76927DBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS76927DBVT 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 TPS76927DBVT?
For technical support, including TPS76927DBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS76927DBVT requirements.
6.How does Aetrix verify that TPS76927DBVT is sourced from the original manufacturer or authorized distributors?
All TPS76927DBVT 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 TPS76927DBVT meets industry standards.
7.What is the process for return or replacement of TPS76927DBVT?
All TPS76927DBVT units undergo pre-shipment inspection (PSI). If there is an issue with TPS76927DBVT, 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 TPS76927DBVT part is unused and in its original packaging.
Return procedure for TPS76927DBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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