TPS70858PWPG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments TPS70858PWPG4 is a dual fixed-output LDO voltage regulator providing 2.5 V and 3.3 V outputs at up to 500 mA each with ±2% accuracy and only 0.275 V typical dropout. Operating from 3.5 V to 6 V input in a 20-pin HTSSOP package, it suits dual-rail embedded systems. From $2.10 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- TPS70858PWPG4 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TPS70858PWPG4?
- Dual fixed 2.5 V and 3.3 V simultaneous outputs at 500 mA each enabling single-IC dual-rail power supply for mixed-voltage DSP and FPGA boards
- Low 0.275 V typical dropout voltage (0.14 V maximum at light load) maximizing efficiency in battery-operated embedded designs from 3.5 V to 6 V input
- ±2% output voltage accuracy across load and temperature ensuring stable supply for precision analog and RF circuits in industrial and consumer products
What is TPS70858PWPG4 used for?
TPS70858PWPG4 is an efficient power solution for dual-rail embedded systems such as DSPs, FPGAs, and microcontrollers requiring simultaneous 2.5 V and 3.3 V supplies from a 5 V bus. Its 500 mA per channel capability with low dropout suits portable instruments, handheld scanners, and industrial sensor modules powered from regulated 5 V adapters or 1S Li-ion batteries. The compact 20-pin HTSSOP footprint simplifies power tree layout on space-constrained PCBs.
What are the specifications of TPS70858PWPG4?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.14V |
| Dropout Voltage1-Nom | 0.275V |
| Input Voltage Absolute-Max | 7V |
| Input Voltage-Max | 6V |
| Input Voltage-Min | 3.506V |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Line Regulation-Max | 0.0056% |
| Load Regulation-Max | 0.001% |
| Number of Functions | 1 |
| Number of Outputs | 2 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.25A |
| Output Current2-Max | 0.125A |
| Output Voltage1-Max | 3.366V |
| Output Voltage1-Min | 3.234V |
| Output Voltage1-Nom | 3.3V |
| Output Voltage2-Max | 2.55V |
| Output Voltage2-Min | 2.45V |
| Output Voltage2-Nom | 2.5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP20,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE MULTIPLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | CMOS |
| 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 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the TPS70858PWPG4 datasheet?
TPS70858PWPG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS70858PWPG4?
Compatible alternatives and drop-in replacements for TPS70858PWPG4:
Frequently Asked Questions
What are the two fixed output voltages and maximum current ratings of TPS70858PWPG4?
TPS70858PWPG4 provides dual fixed outputs of 2.5 V and 3.3 V, each rated at 500 mA continuous current. With ±2% output accuracy and 0.275 V typical dropout, it reliably powers mixed-voltage systems such as FPGA core (2.5 V) and I/O (3.3 V) rails from a 5 V input bus.
For a battery-powered handheld device, at what minimum input voltage does TPS70858PWPG4 maintain regulation on both outputs?
TPS70858PWPG4 requires a minimum input voltage of approximately 3.506 V to maintain regulation on the 3.3 V output at rated load, given its 0.275 V typical dropout. For a 500 mA load, the 3.3 V output remains regulated down to roughly 3.5 V input, making it compatible with near-end-of-charge single-cell Li-ion batteries.
How does TPS70858PWPG4 compare to using two separate single-output LDOs for a dual-rail 2.5 V / 3.3 V supply?
Integrating both rails into TPS70858PWPG4 reduces the component count by at least 6 passives and saves approximately 30 mm² of PCB area compared to two discrete SOT-223 LDOs. The single 20-pin HTSSOP package also simplifies thermal management by consolidating heat dissipation into one pad, reducing board complexity in portable and industrial designs.
What is the absolute maximum input voltage for TPS70858PWPG4 and what overvoltage margin does this provide from a 5 V supply?
TPS70858PWPG4 has an absolute maximum input voltage of 7 V, providing a 2 V overvoltage margin above a 5 V supply rail. This headroom protects against transients from adapter plugging, load dump events in automotive USB hubs, or voltage spikes in industrial 5 V bus environments where line noise can reach 5.5 V to 6 V peaks.
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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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