TPS79516DCQRG4 Texas Instruments Integrated Circuit (SOT223 (5-Pin)) In Stock
TPS79516DCQRG4 is a high-PSRR, fast-transient 500mA LDO linear voltage regulator with a fixed 1.6V output and only 110mV typical dropout voltage. It operates from 2.7V to 5.5V input with excellent line regulation of 0.005% in a SOT-223 5-pin package. Available from stock with worldwide shipping at competitive pricing.
- Manufacturer
- Texas Instruments
- Package
- SOT223 (5-Pin)
- Pin Count
- 6
- Lifecycle
- OBSOLETE
- Datasheet
- TPS79516DCQRG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TPS79516DCQRG4?
- High power supply rejection ratio (PSRR) ensures clean output voltage even with noisy switching regulators as input, ideal for RF and analog circuits
- Ultra-low 110mV typical dropout voltage maximizes efficiency in low-headroom power supply architectures with tight input-to-output margins
- 500mA output current capability with fast transient response supports dynamic digital and RF load changes without output voltage excursion
- 2.7V to 5.5V input range covers standard 3.3V and 5V supply rails, simplifying integration in mixed-voltage embedded system designs
What is TPS79516DCQRG4 used for?
The TPS79516DCQRG4 is designed for post-regulation of noisy DC-DC converter outputs in RF transceivers, wireless modules, and precision analog circuits requiring a clean, stable 1.6V supply. It is well-suited for powering FPGAs, ADCs, DSPs, and low-noise amplifiers in portable communications equipment and industrial instruments. The high PSRR and fast transient response make it the preferred choice for noise-sensitive RF and mixed-signal applications in cellular, Bluetooth, and Wi-Fi designs.
What are the specifications of TPS79516DCQRG4?
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.11V |
| Dropout Voltage1-Nom | 0.11V |
| Input Voltage Absolute-Max | 6V |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 2.7V |
| JESD-30 Code | R-PDSO-G6 |
| JESD-609 Code | e4 |
| Line Regulation-Max | 0.00538% |
| Load Regulation-Max | 0.003% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.5A |
| Output Voltage1-Max | 1.632V |
| Output Voltage1-Min | 1.568V |
| Output Voltage1-Nom | 1.6V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOT-223-5 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | BICMOS |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 2% |
| Package | SOT223 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the TPS79516DCQRG4 datasheet?
TPS79516DCQRG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS79516DCQRG4?
Compatible alternatives and drop-in replacements for TPS79516DCQRG4:
Frequently Asked Questions
What is the output voltage and dropout voltage of the TPS79516DCQRG4?
The TPS79516DCQRG4 provides a fixed 1.6V output voltage with a typical and maximum dropout voltage of only 110mV. This ultra-low dropout allows the regulator to maintain regulation with a 1.71V input, making it highly efficient in low-headroom power supply designs operating from 1.8V or higher input rails.
Why is high PSRR important for the TPS79516DCQRG4 and what does it provide?
High PSRR (Power Supply Rejection Ratio) means the TPS79516DCQRG4 attenuates noise and ripple present on the input supply before it appears on the output. This is critical in RF and precision analog applications where switching regulator noise can degrade receiver sensitivity, ADC dynamic range, and PLL phase noise if not properly filtered.
What is the input voltage range of the TPS79516DCQRG4?
The TPS79516DCQRG4 accepts input voltages from 2.7V minimum to 5.5V maximum, with an absolute maximum of 6V. This range makes it directly compatible with 3.3V and 5V power rails commonly found in embedded systems, allowing it to post-regulate these supplies down to the 1.6V needed by low-voltage digital and RF components.
What package does the TPS79516DCQRG4 use?
The TPS79516DCQRG4 is housed in a SOT-223 5-pin surface-mount package, designated JESD-30 code R-PDSO-G6. The SOT-223 package includes an exposed tab for improved thermal dissipation, enabling the LDO to deliver its full 500mA output current while maintaining safe operating temperatures in compact PCB designs.
What does the 'RG4' suffix in TPS79516DCQRG4 indicate?
The 'RG4' suffix indicates the device is supplied on tape and reel (R) and is fully RoHS compliant with a Green (G4/e4) material designation, meaning it is manufactured without lead, halogen, and other restricted substances. This makes it suitable for use in environmentally conscious product designs meeting current global regulatory requirements.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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