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Texas Instruments TPS77030DBVTG4
- Part No.:
- TPS77030DBVTG4
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TPS77030DBVTG4.pdf
- Description:
- IC REG LINEAR 3V 50MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,836
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Product details
Overview
TPS77030DBVTG4 from Texas Instruments is a fixed-output, 3.0V, ultra-low-power (50µA typical quiescent current), low-dropout linear regulator in a 5-pin SOT-23 package. It delivers up to 50mA output current with 1.2% output accuracy over load and temperature, 215mV typical dropout at 100mA, and 46dB PSRR at 1MHz - optimized for battery-powered microcontroller biasing in HVAC control modules.
For engineers reviewing the TPS77030DBVTG4 datasheet, TPS77030DBVTG4 pinout, TPS77030DBVTG4 application, or TPS77030DBVTG4 equivalent, key selection criteria include its 2.5V–16V input range, internal soft-start (750µs), thermal shutdown, overcurrent protection, and compatibility with ≥2.2µF ceramic output capacitors for stable operation in space-constrained industrial embedded systems.
Technical Context
The TPS77030DBVTG4 implements a PMOS pass transistor architecture enabling low dropout and high PSRR performance. Its internal 1.2V reference feeds an error amplifier that regulates the 3.0V output via feedback from the FB/NC pin - though this pin is unconnected (NC) in the fixed-voltage variant.
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 3.0V ±1.2% over full load (0–50mA) and temperature (–40°C to +125°C) |
| Input Voltage Range | 2.5V to 16V - supports direct regulation from 12V rails or wide-range automotive/battery inputs |
| Dropout Voltage | 215mV (typ) at 100mA - enables stable 3.0V output even when input drops to 3.215V |
| Quiescent Current | 50µA (typ) at zero load - extends battery life in always-on sensor nodes |
| PSRR | 46dB at 1MHz - suppresses switching noise from upstream DC/DC converters without added filtering |
| Output Capacitor | ≥2.2µF ceramic (ESR ≤3Ω) - enables compact, low-ESR capacitor selection for PCB area savings |
| Enable Threshold | High: ≥1.6V; Low: ≤0.415V - compatible with 1.8V/3.3V GPIO control without level-shifting |
Pinout & Package
TPS77030DBVTG4 is housed in a 5-pin SOT-23 (DBV) package measuring 2.9mm × 2.8mm with RθJA = 178.6°C/W. The pinout is validated per TI SLVS210E (Jan 2025) Figure 4-1 and Table 4-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Power input | Accepts 2.5V–16V supply; requires ≥1µF input capacitor placed adjacent to IN/GND |
| 2 - GND | Ground reference | Common return path for input, output, and internal circuitry; must be low-impedance |
| 3 - EN | Enable control | Active-high logic input; drives device ON when ≥1.6V, OFF when ≤0.415V |
| 4 - FB/NC | Feedback / No Connect | No connection (NC) in fixed-output TPS77030DBVTG4; must remain unconnected |
| 5 - OUT | Regulated output | Delivers stable 3.0V; requires ≥2.2µF ceramic capacitor placed adjacent to OUT/GND |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 50µA typical at zero load - enables >10-year battery life in low-duty-cycle IoT sensors |
| Integrated fault protection | Thermal shutdown (173°C trip) + overcurrent limit (370–450mA) - eliminates need for external protection circuitry |
| Internal soft-start | 750µs typical startup time - prevents inrush current and reduces required input capacitance |
| Wide-input voltage range | 2.5V to 16V - accommodates 12V industrial rails and automotive transients without pre-regulation |
| High PSRR at high frequency | 46dB at 1MHz - attenuates DC/DC switching noise, reducing post-regulator filter complexity |
Applications
| Residential HVAC Control | Industrial Transportation ECU |
|---|---|
Use Scenario: Powering 3.3V microcontrollers and temperature sensors in wall-mounted thermostats and zone controllers. IC Role / Device Role / Timing Role: Primary 3.0V bias regulator for MCU core and analog peripherals. Use Value: 1.2% output accuracy ensures ADC reference stability; 50µA quiescent current enables multi-year battery operation in wireless units. | Use Scenario: Supplying 3.0V logic for CAN transceiver interfaces and diagnostic LEDs in railcar door control units. IC Role / Device Role / Timing Role: Secondary LDO after main 5V/12V DC/DC converter, providing clean, enable-controlled power domain. Use Value: 46dB PSRR at 1MHz suppresses switching noise from primary converter, preventing CAN bit errors during EMI events. |
| Smart Appliance MCU Bias | Low-Power Industrial Sensor Node |
Use Scenario: Regulating 3.0V for ARM Cortex-M0+ MCUs and touch controllers in washing machine control boards. IC Role / Device Role / Timing Role: Fixed-output LDO delivering stable core voltage during motor surge transients. Use Value: 215mV dropout allows operation down to 3.215V input - maintains MCU functionality during brownout conditions on shared 3.3V rail. | Use Scenario: Powering ultra-low-power environmental sensors (temp/humidity/pressure) with intermittent wake-up cycles. IC Role / Device Role / Timing Role: Always-on LDO supplying regulated 3.0V to sensor analog front-end and RTC. Use Value: Internal UVLO (2.2V rising) prevents erratic behavior during battery depletion; standby current <2.75µA preserves energy between measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS76933DBVR | Legacy chip: 3% output accuracy, 71mV dropout at 100mA, 4.7µF min COUT, 13.5V max VIN | Lower accuracy and higher dropout; suitable only where tighter regulation not required | Choose if legacy design reuse is needed and 1.2% accuracy is unnecessary |
| MCP1703T-3302E/MB | Microchip part: 3.3V output (not 3.0V), 250mV dropout at 250mA, 2.7–16V input, 4µA IQ | Higher output voltage and current capability; different pinout (SOT-23-3) | Consider only if 3.3V output is acceptable and higher load current is required |
Compared with TPS77030DBVTG4, TPS76933DBVR offers lower dropout but sacrifices 2.1% accuracy and lacks UVLO/soft-start; MCP1703T-3302E/MB provides lower quiescent current but delivers 3.3V instead of 3.0V and requires PCB redesign due to 3-pin SOT-23 packaging.
Availability
TPS77030DBVTG4 is available at Aetrix Electronics and suitable for residential HVAC control, industrial transportation ECUs, and smart appliance MCU biasing requiring stable component supply across extended product lifecycles.
Supply support for TPS77030DBVTG4 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, embedded processing, and power management ICs for industrial, automotive, and consumer applications.
The TPS770 family is designed for ultra-low-power, high-PSRR LDO regulation in battery-operated and harsh-environment systems - emphasizing precision, reliability, and integrated protection for mission-critical embedded power rails.
FAQ
What is the maximum input voltage rating for TPS77030DBVTG4?
The absolute maximum input voltage for TPS77030DBVTG4 is 18V, with recommended operating range from 2.5V to 16V. Exceeding 18V risks permanent damage. This wide input range allows direct use with 12V industrial rails and accommodates automotive load-dump transients when paired with appropriate front-end protection.
Does TPS77030DBVTG4 require an external feedback resistor network?
No, TPS77030DBVTG4 is a fixed-output 3.0V regulator and does not require external feedback resistors. Pin 4 (FB/NC) is designated "No Connection" and must remain unconnected - unlike adjustable variants such as TPS77001, which use this pin for voltage setting.
What is the minimum output capacitor value required for stability with TPS77030DBVTG4?
TPS77030DBVTG4 requires a minimum output capacitor of 2.2µF ceramic with ESR ≤3Ω for stable operation. This is a reduction from legacy versions requiring 4.7µF, enabling smaller footprint and lower cost in space-constrained designs like thermostat PCBs.
How does the enable function operate on TPS77030DBVTG4?
The EN pin on TPS77030DBVTG4 is active-high: the device enables when EN ≥1.6V and disables when EN ≤0.415V. Input leakage is ≤0.02µA in shutdown, supporting ultra-low-power system-level control via microcontroller GPIO without additional driver circuitry.
Is TPS77030DBVTG4 qualified for automotive applications?
TPS77030DBVTG4 is not AEC-Q100 qualified. While it operates across –40°C to +125°C and includes automotive-relevant features (UVLO, thermal shutdown), it is specified for industrial and consumer applications per its datasheet. For automotive use, TI recommends AEC-Q100 qualified alternatives such as TPS7B67xx series.
TPS77030DBVTG4 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):
- 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.12V @ 50mA
- Current - Output:
- 50mA
- 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
TPS77030DBVTG4 FAQ
1.How can I place an order for TPS77030DBVTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS77030DBVTG4 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 TPS77030DBVTG4 reliable?
The price and inventory of TPS77030DBVTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS77030DBVTG4 is usually 5 days.
3.What payment methods are accepted for TPS77030DBVTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS77030DBVTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS77030DBVTG4?
TPS77030DBVTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS77030DBVTG4 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 TPS77030DBVTG4?
For technical support, including TPS77030DBVTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS77030DBVTG4 requirements.
6.How does Aetrix verify that TPS77030DBVTG4 is sourced from the original manufacturer or authorized distributors?
All TPS77030DBVTG4 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 TPS77030DBVTG4 meets industry standards.
7.What is the process for return or replacement of TPS77030DBVTG4?
All TPS77030DBVTG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS77030DBVTG4, 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 TPS77030DBVTG4 part is unused and in its original packaging.
Return procedure for TPS77030DBVTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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