TPS79516DCQG4 Texas Instruments Integrated Circuit (SOT223 (5-Pin)) In Stock
The TPS79516DCQG4 is a fixed 1.6 V, 500 mA low-dropout linear voltage regulator from Texas Instruments with a 2.7 V to 5.5 V input range and ±2% accuracy in a 6-pin SOT-223 package. It features ultra-low dropout voltage of 1 V maximum, ensuring stable regulation even with small input-output voltage differentials. Available from stock worldwide at competitive prices for portable and battery-powered applications.
- Manufacturer
- Texas Instruments
- Package
- SOT223 (5-Pin)
- Pin Count
- 6
- Lifecycle
- OBSOLETE
- Datasheet
- TPS79516DCQG4 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TPS79516DCQG4?
- Fixed 1.6 V output with ±2% accuracy provides stable supply for precision digital and analog circuits
- 500 mA continuous output current in compact 6-pin SOT-223 package simplifies power supply design
- Low dropout voltage of 1 V maximum supports efficient operation with input voltages as low as 2.7 V
- Excellent line regulation of 0.00538% maximum ensures stable output across the full 2.7 V to 5.5 V input range
What is TPS79516DCQG4 used for?
The TPS79516DCQG4 is designed for powering DSPs, FPGAs, microcontrollers, and memory devices in portable equipment, handheld instruments, and wireless communication modules where a stable 1.6 V supply is required. Its low dropout characteristic makes it particularly valuable in battery-powered systems operating from a single-cell or two-cell Li-ion source, where input voltage may drop close to the regulated output. The SOT-223 package provides adequate thermal performance for medium-current applications in space-constrained PCB designs.
What are the specifications of TPS79516DCQG4?
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 1V |
| Dropout Voltage1-Nom | 1V |
| 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 | TUBE |
| 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 TPS79516DCQG4 datasheet?
TPS79516DCQG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS79516DCQG4?
Compatible alternatives and drop-in replacements for TPS79516DCQG4:
Frequently Asked Questions
What are the key specifications of the TPS79516DCQG4 LDO regulator?
The TPS79516DCQG4 provides a fixed 1.6 V output with ±2% accuracy and a 500 mA maximum output current. It accepts input voltages from 2.7 V to 5.5 V (absolute maximum 6 V) and has a dropout voltage of up to 1 V. The device offers excellent line regulation of 0.00538% maximum and is housed in a 6-pin SOT-223 surface-mount package, making it suitable for space-constrained, battery-powered applications.
What does low-dropout mean and why is it important in the TPS79516DCQG4?
Low-dropout (LDO) refers to the regulator's ability to maintain a regulated output voltage even when the input voltage is only slightly higher than the output. The TPS79516DCQG4 has a maximum dropout voltage of 1 V, meaning the input can be as low as 2.6 V while still delivering a regulated 1.6 V output. This is critical in battery-powered designs where the supply voltage decreases as the battery discharges, extending the usable operating time compared to regulators with higher dropout voltages.
What applications is the TPS79516DCQG4 suitable for?
The TPS79516DCQG4 is well-suited for powering digital ICs including microcontrollers, DSPs, FPGAs, and SDRAM in portable electronics, handheld test equipment, and wireless sensor nodes. Applications that require a stable 1.6 V core supply from a 3.3 V or 5 V system bus are also ideal candidates. Its compact SOT-223 package and low quiescent current make it attractive for power-sensitive IoT devices, wearables, and medical portable instruments.
What is the SOT-223 package and what are its thermal characteristics?
The SOT-223 is a surface-mount package with four active pins and a large exposed pad on the bottom, which acts as a thermal slug for heat dissipation. The 6-pin variant used by the TPS79516DCQG4 provides additional connection points for improved current handling. The exposed thermal pad can be soldered to the PCB copper area to reduce junction-to-ambient thermal resistance, allowing the device to safely deliver 500 mA output current in typical operating conditions without an external heatsink.
Are there alternative LDO regulators compatible with the TPS79516DCQG4?
Functionally similar 1.6 V, 500 mA LDO regulators include other devices from the TPS795xx family (different output voltages), or alternatives from other manufacturers such as Microchip's MCP1826 or Analog Devices' ADP3338. Designers should verify output voltage accuracy, dropout voltage, input voltage range, quiescent current, noise specifications, and package pinout when considering a replacement, as these parameters can differ even among nominally equivalent LDOs and may affect circuit performance.
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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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