TPS79425DGNR Texas Instruments (MSOP) In Stock
TPS79425DGNR is a fixed 2.5 V, low-dropout linear regulator by Texas Instruments with ultra-low noise and high-accuracy output. Key specs: 2.7 V to 5.5 V input range, 200 mV typical dropout at full load, 0.01% maximum load regulation, in an 8-pin MSOP package. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TPS79425DGNR Datasheet PDF
- Price
- From $1.2508(MOQ 100)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TPS79425DGNR?
- Fixed 2.5 V output with 0.01% maximum load regulation for precision analog and RF power supplies
- Ultra-low dropout of 200 mV and 2.7 V to 5.5 V input range enabling single-cell Li-ion or dual-cell AA operation
- Low-noise 8-pin MSOP package with enable pin for power-sequencing and standby control in portable systems
What is TPS79425DGNR used for?
The TPS79425DGNR is designed for noise-sensitive applications such as RF transceivers, precision ADC reference supplies, and audio signal-processing circuits where clean, stable 2.5 V power is required. Its ultra-low noise output and 0.006% maximum line regulation make it an excellent post-regulator after a switching converter in mixed-signal systems. The 8-pin MSOP package and 2.7 V minimum input suit space-constrained portable devices powered by a single Li-ion cell at end-of-discharge.
What are the specifications of TPS79425DGNR?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Adjustability | FIXED |
| Dropout Voltage1-Nom | 0.2V |
| Input Voltage Absolute-Max | 6V |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 2.7V |
| JESD-30 Code | S-PDSO-G8 |
| Line Regulation-Max | 0.006% |
| Load Regulation-Max | 0.01% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.25A |
| Output Voltage1-Max | 2.575V |
| Output Voltage1-Min | 2.425V |
| Output Voltage1-Nom | 2.5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.19 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR, 13 INCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 3% |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the TPS79425DGNR datasheet?
TPS79425DGNR Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS79425DGNR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the TPS79425DGNR's 200 mV dropout voltage benefit single-cell Li-ion battery-powered designs?
A Li-ion cell discharges from 4.2 V down to approximately 3.0 V at cutoff. With only 200 mV typical dropout, the TPS79425DGNR maintains its 2.5 V regulated output until the cell drops to about 2.7 V, which closely matches the device's 2.7 V minimum input specification. This low dropout maximises usable battery capacity compared to regulators with 500 mV to 1 V dropout voltages.
For an RF front-end supply, why does the 0.006% line regulation and ultra-low noise of the TPS79425DGNR matter?
RF circuits are sensitive to power-supply noise because noise couples into oscillators and mixers, raising phase noise and degrading receive sensitivity. The TPS79425DGNR's 0.006% maximum line regulation and ultra-low noise spectral density ensure that supply variations less than 6 mV per volt of input change reach the RF stage, preventing noise-floor degradation at frequencies from DC through several hundred MHz.
How does the TPS79425DGNR compare to a switching regulator for powering a 16-bit ADC reference circuit?
Unlike a switching regulator that introduces ripple at the switching frequency (typically 100 kHz to several MHz), the TPS79425DGNR provides a clean 2.5 V output with inherently low noise, directly compatible with 16-bit ADC reference inputs where even µV-level noise degrades effective resolution. Its 0.01% maximum load regulation keeps the reference voltage stable across varying ADC sampling currents, avoiding code errors at the LSB level.
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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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