TPS77128DGKG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments TPS77128DGKG4 is a fixed-output 2.8V LDO linear voltage regulator delivering 150mA output current with a tight 2% accuracy and only 265mV minimum dropout voltage. It accepts input voltages from 3.121V up to 10V for versatile power rail applications. Available in an 8-pin MSOP package with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- TPS77128DGKG4 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 2.8V output with ±2% accuracy and 265mV minimum dropout voltage, enabling low-headroom regulation from 3.3V rails in battery-powered designs
- 150mA output current capability with 0.026% maximum line regulation ensuring stable output voltage across wide input voltage fluctuations from 3.121V to 10V
- Wide input voltage range up to 10V absolute maximum (13.5V survival) providing compatibility with a broad range of unregulated power sources and battery chemistries
- Compact 8-pin MSOP package (S-PDSO-G8) with RoHS-compliant Pb-free construction ideal for space-constrained portable and embedded power supply designs
Applications
The TPS77128DGKG4 is used as a local power regulator in microcontroller and DSP systems requiring a stable 2.8V supply for analog front-ends, RF transceivers, and sensor modules where low dropout and tight voltage accuracy are critical. It is also applied in battery-powered portable devices such as handheld instruments, wireless modules, and medical monitoring equipment where the low 265mV dropout voltage extends battery runtime near end-of-discharge. Additionally, the device powers post-regulation stages in mixed-supply embedded systems where a clean, low-noise 2.8V rail is needed alongside switching power stages.
Specifications
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.265V |
| Dropout Voltage1-Nom | 1V |
| Input Voltage Absolute-Max | 13.5V |
| Input Voltage-Max | 10V |
| Input Voltage-Min | 3.121V |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e4 |
| Line Regulation-Max | 0.02625% |
| Load Regulation-Max | 0.001% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.15A |
| Output Voltage1-Max | 2.856V |
| Output Voltage1-Min | 2.744V |
| Output Voltage1-Nom | 2.8V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.19 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | PMOS |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 2% |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the output voltage and accuracy of the TPS77128DGKG4?
The TPS77128DGKG4 provides a fixed 2.8V output voltage with a tight ±2% accuracy, ensuring the regulated output stays within 2.744V to 2.856V under varying load and line conditions, suitable for precision analog and RF supply requirements.
What is the dropout voltage of the TPS77128DGKG4?
The TPS77128DGKG4 has a minimum dropout voltage of 265mV (nominal 1V at full load), meaning it can maintain regulation when the input voltage is as low as approximately 3.065V above the 2.8V output, which is beneficial for extending battery life near end-of-discharge.
What is the input voltage range of the TPS77128DGKG4?
The TPS77128DGKG4 accepts input voltages from a minimum of 3.121V up to a maximum operating voltage of 10V, with an absolute maximum survival voltage of 13.5V, enabling use with a wide variety of unregulated power supplies and battery systems.
What package does the TPS77128DGKG4 come in?
The TPS77128DGKG4 is housed in an 8-pin MSOP (S-PDSO-G8) surface-mount package, which provides a very compact footprint suitable for high-density PCB layouts in portable electronics, wearables, and miniaturized embedded computing modules.
What are typical applications for the TPS77128DGKG4?
Typical applications include local 2.8V rail regulation for RF transceivers, CMOS image sensors, and analog-to-digital converters in portable instruments, as well as post-regulation in battery-powered wireless modules, medical monitoring devices, and embedded systems requiring a clean low-dropout supply voltage.
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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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