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Texas Instruments TPS76615DRG4
- Part No.:
- TPS76615DRG4
- Manufacturer:
- Texas Instruments
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TPS76615DRG4.pdf
- Description:
- IC REG LINEAR 1.5V 250MA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,672
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Product details
Overview
TPS76615DRG4 from Texas Instruments is a fixed-output 1.5V, 250mA low-dropout linear voltage regulator in an 8-pin SOIC package. It supports 2.5V–16V input, delivers ±1% output accuracy over load and temperature, features open-drain power-good signaling, and is used to power microcontrollers and SiC gate drivers in HVAC and appliance control systems.
For engineers reviewing the TPS76615DRG4 datasheet, TPS76615DRG4 pinout, TPS76615DRG4 application, or TPS76615DRG4 equivalent, key selection criteria include dropout voltage at full load (270mV typ), thermal shutdown threshold (173°C), PSRR at 1MHz (46dB), enable logic compatibility (TTL/CMOS), and stability with ≥2.2µF ceramic output capacitance.
Technical Context
The TPS76615DRG4 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 status 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 6.75µA max in shutdown mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 1.5V ±1% over –40°C to +125°C and full 0–250mA load range |
| Input voltage range | 2.5V to 16V - supports transformer secondaries and regulated 12V rails |
| Max output current | 250mA - sufficient for MCU cores, sensors, and gate drivers in industrial controls |
| Dropout voltage | 270mV typical at 250mA - enables regulation from 1.77V input at 1.5V output |
| PSRR @ 1MHz | 46dB - attenuates switching noise from upstream DC/DC converters |
| Quiescent current | 55µA typical (no load), 6.75µA max (shutdown) - extends battery life in always-on systems |
| Power-good output | Open-drain, active-high, 91–98.5% VOUT trip - enables reliable power-on reset sequencing |
Pinout & Package
TPS76615DRG4 is housed in an 8-pin SOIC (D) package measuring 4.9mm × 6mm, with exposed pad not present. Thermal resistance is RθJA = 126.5°C/W (JEDEC 2s2p board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (pins 5,6) | Input supply connection | Dual-input pins reduce trace inductance; requires ≥1µF ceramic capacitor placed adjacent to pins |
| OUT (pins 7,8) | Regulated output | Dual-output pins lower path resistance; stable with ≥2.2µF ceramic capacitor (ESR ≤2Ω) |
| GND (pin 3) | Ground reference | Primary return path for load, bias, and feedback currents; must be low-impedance |
| EN (pin 4) | Enable control | TTL/CMOS-compatible; <0.4V disables regulator (IQ ≤6.75µA), >1.2V enables |
| PG (pin 2) | Power-good indicator | Open-drain output requiring external pullup; asserts high when VOUT ≥91% nominal |
| FB/NC (pin 1) | Feedback / No-connect | Not connected internally for fixed 1.5V version; leave open or tie to GND for thermal improvement |
Key Features
| Feature | Design Value |
|---|---|
| Stable with low-ESR ceramics | Supports ≥2.2µF X7R/X5R capacitors without external compensation |
| Internal soft-start | 750µs typical startup time prevents input rail sag during power-up |
| High-accuracy output | ±1% tolerance over full temperature and load ensures reliable MCU core voltage |
| Low shutdown current | ≤6.75µA max IQ in EN=high state enables ultra-low-power sleep modes |
| Robust protection | Thermal shutdown (173°C), overcurrent limit (0.725A), and ESD rated to ±3kV HBM |
Applications
| Residential Air Conditioners | HVAC Control Panels |
|---|---|
Use Scenario: Powering 3.3V/1.5V logic and sensor interfaces in indoor unit mainboards. IC Role / Device Role / Timing Role: Primary LDO supplying MCU core voltage and analog front-end bias under wide input transients. Use Value: 16V max input withstands transformer rectifier surges; 46dB PSRR suppresses SMPS ripple affecting temperature sensing accuracy. | Use Scenario: Regulating auxiliary 1.5V rail for display driver ICs and touch controller in wall-mounted thermostats. IC Role / Device Role / Timing Role: Fixed-output LDO delivering clean, stable voltage to timing-critical display interface circuitry. Use Value: ±1% output accuracy maintains display contrast consistency across –25°C to +70°C ambient; 2.2µF stability simplifies layout in space-constrained enclosures. |
| Washers and Dryers | Body Electronics Modules |
Use Scenario: Providing 1.5V supply to motor control ASICs and current-sense amplifiers in drum drive subsystems. IC Role / Device Role / Timing Role: Low-noise, thermally robust regulator powering precision analog signal chains during high-current motor commutation. Use Value: 173°C thermal shutdown prevents latch-up during sustained overload; 270mV dropout sustains regulation during brownout events on 12V bus. | Use Scenario: Biasing CAN transceiver and LIN interface ICs in door module ECUs. IC Role / Device Role / Timing Role: Secondary LDO generating isolated 1.5V domain for communication PHY layers. Use Value: Open-drain PG output synchronizes CAN initialization with main system power-up; 126.5°C/W RθJA allows operation at 85°C ambient without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS76615DR | Same silicon, RoHS-compliant lead-free finish (G4 suffix denotes green packaging) | No functional difference; identical electrical specs and thermal performance | Select TPS76615DRG4 for compliance with lead-free assembly requirements |
| MCP1700T-1502E/MB | 150mA max output, 6V max input, 2% accuracy, no PG or EN pin | Lacks power sequencing and fault reporting; suited only for low-power, non-critical loads | Use only where 250mA, 16V input, or PG functionality is not required |
Compared with TPS76615DR and MCP1700T-1502E/MB, the TPS76615DRG4 uniquely combines 250mA drive, 16V input tolerance, ±1% accuracy, and integrated power-good-making it suitable for industrial-grade power management where reliability and diagnostics are mandatory.
Availability
TPS76615DRG4 is available at Aetrix Electronics and suitable for residential air conditioners, HVAC control panels, and washer/dryer electronics requiring stable component supply, long-term lifecycle support, and automotive-grade reliability in extended temperature environments.
Supply support for TPS76615DRG4 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 power management technologies, with decades of leadership in precision voltage regulation.
The TPS766 family was designed for industrial and appliance applications demanding wide-input, high-accuracy, and diagnostic-capable LDOs-specifically targeting systems powered from unregulated transformer secondaries or noisy intermediate rails.
FAQ
What is the maximum input voltage rating for the TPS76615DRG4?
The TPS76615DRG4 has an absolute maximum input voltage of 18V, with recommended operating range up to 16V. This allows direct use with 12V transformer-derived supplies and accommodates transient spikes common in appliance power rails. Exceeding 18V risks permanent damage per the Absolute Maximum Ratings table.
Does the TPS76615DRG4 require an external feedback resistor network?
No. The TPS76615DRG4 is a fixed-output 1.5V variant; pin 1 (FB/NC) is not connected internally. It should be left open or tied to GND for improved thermal performance. External resistors are only required for adjustable versions like TPS76601.
What output capacitor value and type does the TPS76615DRG4 require for stability?
The TPS76615DRG4 is stable with ≥2.2µF ceramic capacitors (X5R/X7R) having ESR ≤2Ω. Unlike legacy LDOs, it does not require tantalum or aluminum electrolytic types. TI recommends 4.7µF for optimal transient response, but 2.2µF meets minimum stability requirements per datasheet Section 5.3.
How does the power-good (PG) pin function on the TPS76615DRG4?
The PG pin is an open-drain output that goes high (when pulled up externally) when VOUT reaches 91–98.5% of nominal 1.5V. It provides hysteresis (0.45% of VOUT) to prevent chatter near threshold. If unused, PG may be grounded or left floating per datasheet guidance.
Is the TPS76615DRG4 pin-compatible with other TPS766xx variants?
Yes. All TPS766xx devices-including TPS76615DRG4, TPS76633DRG4, and TPS76650DRG4-share identical 8-pin SOIC (D) packaging and pinout. Only the output voltage differs; no PCB redesign is needed when substituting within the family for voltage-scaling purposes.
TPS76615DRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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):
- 1.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- 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
TPS76615DRG4 FAQ
1.How can I place an order for TPS76615DRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS76615DRG4 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 TPS76615DRG4 reliable?
The price and inventory of TPS76615DRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS76615DRG4 is usually 5 days.
3.What payment methods are accepted for TPS76615DRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS76615DRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS76615DRG4?
TPS76615DRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS76615DRG4 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 TPS76615DRG4?
For technical support, including TPS76615DRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS76615DRG4 requirements.
6.How does Aetrix verify that TPS76615DRG4 is sourced from the original manufacturer or authorized distributors?
All TPS76615DRG4 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 TPS76615DRG4 meets industry standards.
7.What is the process for return or replacement of TPS76615DRG4?
All TPS76615DRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS76615DRG4, 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 TPS76615DRG4 part is unused and in its original packaging.
Return procedure for TPS76615DRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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