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
Key Features
- 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
Applications
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.
Specifications
| 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 |
Alternate & Equivalent Parts
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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $1.5108 | $151.08 |
| 250+ | $1.4268 | $356.71 |
| 500+ | $1.3892 | $694.62 |
| 2500+ | $1.2906 | $3226.53 |
| 5000+ | $1.2641 | $6320.60 |
| 7500+ | $1.2508 | $9381.30 |
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