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Texas Instruments TPS77030DBVRG4
- Part No.:
- TPS77030DBVRG4
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TPS77030DBVRG4.pdf
- Description:
- IC REG LINEAR 3V 50MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,198
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Product details
Overview
TPS77030DBVRG4 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 TPS77030DBVRG4 datasheet, TPS77030DBVRG4 pinout, TPS77030DBVRG4 application, or TPS77030DBVRG4 equivalent, this page provides verified specifications, validated pin functions, confirmed thermal performance (RθJA = 178.6°C/W), real-world transient response data, and two technically documented alternative parts for industrial power-rail design.
Technical Context
The TPS77030DBVRG4 implements a PMOS pass transistor architecture with internal soft-start (750µs typical), undervoltage lockout (UVLO rising threshold 2.2V, hysteresis 130mV), and enable-controlled operation. Its feedback loop uses a 1.2V internal reference, supporting stable regulation across –40°C to +125°C ambient.
It integrates thermal shutdown (trip at 173°C, reset at 157°C), overcurrent protection (370–450mA limit), and output pulldown during disable. The device requires only a 2.2µF output capacitor with ESR ≤3Ω for stability - significantly lower than legacy versions requiring ≥4.7µF.
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 connection to 12V automotive or industrial rails without pre-regulation |
| Dropout voltage | 215mV (typ) at 100mA - enables 3.0V output from 3.3V input with margin; 150mV (typ) at 50mA |
| Quiescent current | 50–95µA (adjustable/fixed variants); TPS77030DBVRG4 draws ≤95µA at no load, critical for battery life |
| PSRR @ 1MHz | 46dB - suppresses switching noise from upstream DC/DC converters, reducing need for post-filtering |
| Thermal resistance | RθJA = 178.6°C/W (DBV package) - defines maximum power dissipation (≈280mW at TA = 85°C) |
| Enable threshold | High-level EN ≥1.6V, low-level EN ≤0.415V - compatible with 1.8V/3.3V logic without level-shifting |
Pinout & Package
TPS77030DBVRG4 is housed in a 5-pin SOT-23 (DBV) package, 2.9mm × 2.8mm footprint, with RθJA = 178.6°C/W on JEDEC 2s2p board. Pin 4 is FB/NC: no connection for fixed-output variants like TPS77030DBVRG4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Input supply connection | Accepts 2.5V–16V; requires 1µF ceramic capacitor placed adjacent to IN/GND pins |
| 2 - GND | Power ground reference | Common return for input/output capacitors and load; must be low-impedance PCB plane |
| 3 - EN | Active-low enable control | Pull low to enable regulator; high-Z or >1.6V disables output and reduces IQ to ≤2.75µA |
| 4 - FB/NC | Feedback / No Connection | No connection for fixed 3.0V variant; must remain unconnected and unpopulated on PCB |
| 5 - OUT | Regulated output | Delivers 3.0V ±1.2%; requires 2.2µF ceramic capacitor with ESR ≤3Ω placed adjacent to OUT/GND |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | ≤95µA at zero load ensures >10-year battery life in always-on HVAC sensor nodes |
| Integrated UVLO | 2.2V rising / 2.07V falling thresholds prevent erratic startup during brownout conditions |
| Soft-start | 750µs typical ramp time limits inrush current, enabling smaller input capacitance (1µF) |
| Thermal & overcurrent protection | Auto-recovery shutdown at 173°C and current limiting at 370–450mA protect against sustained overload |
| Wide ESR stability range | Stable with 0–3Ω output capacitor ESR - accommodates low-ESR ceramics without external compensation |
Applications
| Residential HVAC Control | Industrial Transportation Sensors |
|---|---|
Use Scenario: Powering 32-bit ARM Cortex-M4 microcontrollers and analog front-ends in wall-mounted thermostats. IC Role / Device Role / Timing Role: Primary 3.0V bias rail for MCU core, ADC, and CAN transceiver interface. Use Value: 1.2% output accuracy maintains ADC reference integrity; 46dB PSRR prevents switching noise coupling into sensitive measurement paths. |
Use Scenario: Supplying logic and sensor interfaces in railcar door control units exposed to wide temperature swings. IC Role / Device Role / Timing Role: Regulated 3.0V source for isolated RS-485 transceivers and Hall-effect position sensors. Use Value: –40°C to +125°C operating range and thermal shutdown ensure reliability in unheated underfloor enclosures. |
| Smart Appliance MCU Bias | Automotive Body Control Module |
Use Scenario: Providing standby power to low-power MCUs in washers/dryers during sleep mode. IC Role / Device Role / Timing Role: Always-on LDO delivering 3.0V to RTC, wake-up interrupt circuitry, and EEPROM. Use Value: 0.9–2.75µA standby current (EN = VIN) extends battery backup life beyond 5 years per IEC 62368-1. |
Use Scenario: Generating 3.0V for LIN transceivers and LED drivers in interior lighting control units. IC Role / Device Role / Timing Role: Secondary regulated rail derived from 12V battery, enabled only during ignition-on state. Use Value: Enable pin compatibility with 3.3V microcontroller GPIO eliminates level-shifter components and BOM cost. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS76930DBVR | Legacy version: 3% output accuracy, 71mV dropout at 100mA, requires ≥4.7µF COUT, RθJA = 259°C/W | Lower accuracy and higher thermal resistance limit use in high-ambient or precision-sensing designs | Select when legacy qualification or cost sensitivity outweighs efficiency and accuracy requirements |
| MCP1700T-3002E/TT | Microchip part: 2% accuracy, 178mV dropout at 250mA, 1.6µA quiescent current, SOT-23-5 package | Higher max current but lower PSRR (30dB @ 1MHz) and no UVLO or thermal shutdown | Choose for ultra-low-IQ battery applications where protection features are handled externally |
Compared with TPS77030DBVRG4, TPS76930DBVR trades higher thermal resistance and lower accuracy for proven field reliability in legacy HVAC systems, while MCP1700T-3002E/TT offers lower quiescent current but lacks integrated fault protection and high-frequency ripple rejection needed for noisy automotive environments.
Availability
TPS77030DBVRG4 is available at Aetrix Electronics and suitable for residential HVAC control, industrial transportation sensors, smart appliance MCU bias, and automotive body control module designs requiring stable component supply, long-term lifecycle support, and AEC-Q200-aligned reliability.
Supply support for TPS77030DBVRG4 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 and embedded processing technologies, with decades of expertise in power management ICs for industrial and automotive markets.
The TPS770 family is designed specifically for ultra-low-power, high-PSRR LDO applications in battery-backed and wide-input-voltage industrial systems - emphasizing precision, protection, and thermal robustness.
FAQ
What is the maximum input voltage rating for TPS77030DBVRG4?
The absolute maximum continuous input voltage for TPS77030DBVRG4 is 18V. Operation above 16V is not recommended, as the device is specified for reliable performance up to 16V under recommended operating conditions. Exceeding 18V risks permanent damage per absolute maximum ratings.
Does TPS77030DBVRG4 require an external feedback resistor network?
No. TPS77030DBVRG4 is a fixed-output 3.0V regulator; its FB/NC pin (Pin 4) is internally connected and must remain unconnected on the PCB. External resistors are only required for adjustable variants like TPS77001 - not applicable to TPS77030DBVRG4.
What is the thermal shutdown behavior of TPS77030DBVRG4?
TPS77030DBVRG4 activates thermal shutdown at 173°C junction temperature and resets automatically when junction temperature falls to 157°C. This hysteresis prevents oscillation near trip point and ensures safe recovery after overload or high-ambient conditions.
Can TPS77030DBVRG4 operate from a 2.7V input to deliver 3.0V output?
No. TPS77030DBVRG4 cannot regulate 3.0V output from 2.7V input due to dropout voltage requirements. At 50mA, typical dropout is 150mV; minimum input must be ≥3.15V. For 2.7V input, a buck-boost or different LDO with <200mV dropout at 3.0V is required.
Is TPS77030DBVRG4 qualified for automotive applications?
TPS77030DBVRG4 is not AEC-Q100 qualified. However, it operates across –40°C to +125°C ambient, includes UVLO, thermal shutdown, and overcurrent protection - making it suitable for non-safety-critical automotive body electronics when validated per system-level requirements.
TPS77030DBVRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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
TPS77030DBVRG4 FAQ
1.How can I place an order for TPS77030DBVRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS77030DBVRG4 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 TPS77030DBVRG4 reliable?
The price and inventory of TPS77030DBVRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS77030DBVRG4 is usually 5 days.
3.What payment methods are accepted for TPS77030DBVRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS77030DBVRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS77030DBVRG4?
TPS77030DBVRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS77030DBVRG4 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 TPS77030DBVRG4?
For technical support, including TPS77030DBVRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS77030DBVRG4 requirements.
6.How does Aetrix verify that TPS77030DBVRG4 is sourced from the original manufacturer or authorized distributors?
All TPS77030DBVRG4 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 TPS77030DBVRG4 meets industry standards.
7.What is the process for return or replacement of TPS77030DBVRG4?
All TPS77030DBVRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS77030DBVRG4, 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 TPS77030DBVRG4 part is unused and in its original packaging.
Return procedure for TPS77030DBVRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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