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Texas Instruments TPS76630DR
- Part No.:
- TPS76630DR
- Manufacturer:
- Texas Instruments
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TPS76630DR.pdf
- Description:
- IC REG LINEAR 3V 250MA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,430
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Product details
Overview
TPS76630DR from Texas Instruments is a fixed-output 3.0V, 250mA low-dropout linear voltage regulator in an 8-pin SOIC package. It operates from 4.0V to 16V input, delivers ±3% output accuracy over load and temperature, features open-drain power-good signaling, and supports stable operation with ≥2.2µF output capacitance - used for powering microcontrollers and sensor bias rails in HVAC control modules.
For engineers reviewing the TPS76630DR datasheet, TPS76630DR pinout, TPS76630DR application, or TPS76630DR equivalent, key selection criteria include dropout voltage at full load (270mV typ), thermal shutdown threshold (173°C), enable logic compatibility (TTL/CMOS), PSRR at 1MHz (46dB), and support for small-ceramic-output-capacitor designs without external compensation.
Technical Context
The TPS76630DR implements a PMOS pass transistor architecture enabling low dropout and high PSRR. Its internal soft-start (750µs typ) limits inrush current, while the open-drain PG output provides active-high power-good indication with 91–98.5% VOUT trip threshold and 0.45% hysteresis.
It integrates overcurrent limiting (0.725–0.8A typ), thermal shutdown (173°C trip, 157°C reset), and operates across –40°C to +125°C junction temperature. The device draws only 55µA typical quiescent current at no load and reduces to 0.9µA in shutdown mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 3.0V ±3% over –40°C to +125°C and 10µA–250mA load |
| Input voltage range | 2.5V to 16V - supports 12V rail and transformer-derived supplies |
| Max output current | 250mA - sufficient for MCU cores, sensors, and interface ICs |
| Dropout voltage | 270mV typ at 250mA - enables regulation from 3.27V input |
| PSRR | 46dB at 1MHz - suppresses switching noise from upstream DC/DC converters |
| Quiescent current | 55µA typ (no load); 0.9µA in shutdown - extends battery life in standby |
| Power-good output | Open-drain, active-high with 91–98.5% VOUT threshold - enables reliable power-on reset |
Pinout & Package
TPS76630DR is housed in an 8-pin SOIC (D) package measuring 4.9mm × 6mm, with exposed pad not present and standard JEDEC outline.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (pins 5, 6) | Input supply connection | Dual-input pins reduce trace resistance and improve thermal performance; requires ≥1µF ceramic input capacitor near pins |
| OUT (pins 7, 8) | Regulated output connection | Dual-output pins lower effective ESR and enhance current sharing; supports ≥2.2µF ceramic output capacitor |
| GND (pin 3) | Ground reference | Primary return path for load, bias, and feedback currents; must be low-impedance PCB plane |
| EN (pin 4) | Enable control input | TTL/CMOS-compatible; logic low disables regulator (IQ ≤ 0.9µA), logic high enables |
| PG (pin 2) | Power-good status output | Open-drain signal requiring external pullup; asserts high when VOUT reaches 91–98.5% of nominal |
| FB/NC (pin 1) | Feedback / No-connect | Not connected internally for fixed-output TPS76630DR; leave floating or tie to GND for thermal improvement |
Key Features
| Feature | Design Value |
|---|---|
| Stable with 2.2µF ceramic output capacitor | Eliminates need for large electrolytic or tantalum capacitors, reducing board area and cost |
| Internal soft-start (750µs) | Prevents input inrush and output overshoot during power-up, easing input capacitor sizing |
| High PSRR (46dB @ 1MHz) | Attenuates high-frequency ripple from switchers, minimizing post-regulator filtering requirements |
| Thermal shutdown with hysteresis (173°C trip / 157°C reset) | Protects against sustained overload or poor heatsinking while preventing thermal cycling lockout |
| Open-drain power-good output | Enables flexible system-level sequencing and reset generation using common pullup voltage |
Applications
| HVAC Control Module | Automotive Body Controller |
|---|---|
Use Scenario: Regulates 3.0V supply for microcontroller, CAN transceiver, and temperature/humidity sensors in residential HVAC indoor units. IC Role / Device Role / Timing Role: Primary LDO delivering stable 3.0V bias under varying 12V bus conditions and transient loads. Use Value: 270mV dropout ensures operation down to 3.27V input; 46dB PSRR suppresses noise from AC-DC converter switching. | Use Scenario: Powers door module MCU and LED drivers in 12V automotive body electronics systems. IC Role / Device Role / Timing Role: Fixed-output LDO providing clean 3.0V rail with integrated power-good for safe boot sequencing. Use Value: Open-drain PG enables direct interface to MCU reset pin; 0.9µA shutdown current minimizes parasitic drain. |
| Industrial Appliance Control | Smart Thermostat Power Management |
Use Scenario: Supplies 3.0V to wireless SoC and environmental sensors in smart washers/dryers with variable line input. IC Role / Device Role / Timing Role: Main 3.0V regulator handling pulsed motor-driver loads and RF transmission bursts. Use Value: 250mA rating accommodates peak SoC current; thermal shutdown prevents damage during extended high-load cycles. | Use Scenario: Generates 3.0V for ultra-low-power MCU and BLE radio in battery-backed thermostats. IC Role / Device Role / Timing Role: Low-quiescent LDO maintaining regulated output during battery-only operation. Use Value: 55µA typical IQ and 0.9µA shutdown current maximize battery runtime between charges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS76730DR | Dual-output version (3.0V + adjustable); higher IQ (80µA typ), same dropout and PG function | Requires dual-rail design; occupies same SOIC-8 footprint but adds routing complexity | Select when needing simultaneous 3.0V and programmable output on single chip |
| MCP1700T-3002E/MB | 250mA, 3.0V fixed, SOT-23-3 package; 1.6µA IQ, 600mV dropout at 250mA | Smaller footprint but higher dropout and no PG output - unsuitable for tight-input-margin or sequencing-critical use | Select for space-constrained, low-IQ applications where PG and low dropout are not required |
Compared with TPS76630DR, TPS76630DR offers superior dropout (270mV vs 600mV), integrated power-good, and higher PSRR (46dB vs ~35dB), while TPS76730DR adds dual-output capability at the cost of higher quiescent current and layout overhead.
Availability
TPS76630DR is available at Aetrix Electronics and suitable for HVAC systems, automotive body electronics, and industrial appliance control requiring stable component supply, long-term manufacturability, and automotive-grade reliability assurance.
Supply support for TPS76630DR 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 designing analog ICs, embedded processors, and connectivity solutions for industrial, automotive, and consumer markets.
The TPS766 family targets cost-sensitive, high-reliability power management in white goods and building automation, emphasizing wide input range, low dropout, and robust thermal protection.
FAQ
What is the maximum input voltage rating for the TPS76630DR?
The TPS76630DR has an absolute maximum input voltage of 18V, with recommended operating range from 4.0V to 16V. Operation above 16V risks permanent damage, and the device is rated for continuous operation up to 16V per TI's SLVS237E datasheet revision March 2024.
Does the TPS76630DR require an external feedback resistor network?
No, the TPS76630DR is a fixed-output 3.0V regulator. Pin 1 (FB/NC) is not connected internally and should be left floating or tied to GND for improved thermal performance - no external resistors are needed or supported.
What is the typical dropout voltage of the TPS76630DR at full 250mA load?
The TPS76630DR exhibits a typical dropout voltage of 270mV at 250mA load and 25°C, rising to 470mV maximum across –40°C to +125°C. This allows regulation from as low as 3.27V input while maintaining 3.0V output.
How does the power-good (PG) output of the TPS76630DR behave during startup and fault conditions?
The TPS76630DR's open-drain PG output remains low until VOUT reaches 91–98.5% of 3.0V, then pulls high. It deasserts low if VOUT drops below threshold or during thermal shutdown or overcurrent events - requiring an external pullup resistor for proper logic-level operation.
Can the TPS76630DR operate with a 1µF output capacitor?
No - the TPS76630DR requires a minimum 2.2µF ceramic output capacitor for stability, as confirmed in Section 5.3 of the datasheet. Using 1µF risks oscillation or poor transient response; 4.7µF is recommended for optimal PSRR and load step performance.
TPS76630DR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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):
- 0.47V @ 250mA
- Current - Output:
- 250mA
- Current - Quiescent (Iq):
- 50 µA
- Current - Supply (Max):
- -
- PSRR:
- 63dB (1kHz)
- Control Features:
- Enable, Power Good
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TPS76630DR FAQ
1.How can I place an order for TPS76630DR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS76630DR 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 TPS76630DR reliable?
The price and inventory of TPS76630DR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS76630DR is usually 5 days.
3.What payment methods are accepted for TPS76630DR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS76630DR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS76630DR?
TPS76630DR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS76630DR 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 TPS76630DR?
For technical support, including TPS76630DR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS76630DR requirements.
6.How does Aetrix verify that TPS76630DR is sourced from the original manufacturer or authorized distributors?
All TPS76630DR 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 TPS76630DR meets industry standards.
7.What is the process for return or replacement of TPS76630DR?
All TPS76630DR units undergo pre-shipment inspection (PSI). If there is an issue with TPS76630DR, 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 TPS76630DR part is unused and in its original packaging.
Return procedure for TPS76630DR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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