TPS2085DG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Quad high-side MOSFET power distribution switch with four independent 0.5A continuous channels in a single 16-pin SOIC. Operates from 2.7V to 5.5V with integrated over-current, thermal, and under-voltage protection for USB and portable equipment power management.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- TPS2085DG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TPS2085DG4?
- Four independent high-side MOSFET channels each rated at 0.5A continuous (1A peak) allow granular load switching in multi-port USB hubs and portable devices
- Built-in over-current, thermal shutdown, transient protection, and under-voltage lockout reduce external protection component count to zero
- 2.7V to 5.5V operating range supports both 3.3V and 5V power rails, enabling use in battery-powered systems down to 2-cell lithium-ion discharge voltage
- Active-low enable inputs are logic-level compatible with 3.3V MCU GPIO outputs, eliminating level-translation logic
- 16-pin SOIC package integrates four power switches that would otherwise require four discrete P-channel MOSFETs and four gate-drive circuits
What is TPS2085DG4 used for?
The TPS2085 is used in USB hub ICs, notebook computers, and portable electronics to independently switch four load rails from a 5V or 3.3V supply, protecting each channel from overcurrent faults up to 1A peak. It also serves in battery-powered instruments and industrial I/O boards where four separately controlled 0.5A loads such as sensors, relays, and LED arrays need to be sequenced or individually disabled by a microcontroller.
What are the specifications of TPS2085DG4?
| YTEOL | 0 |
| Built-in Protections | TRANSIENT; OVER CURRENT; THERMAL; UNDER VOLTAGE |
| Driver Number of Bits | 4 |
| Interface IC Type | BUFFER OR INVERTER BASED PERIPHERAL DRIVER |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Number of Functions | 4 |
| Output Current Flow Direction | SINK |
| Output Current-Max | 0.5A |
| Output Peak Current Limit-Nom | 1A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 2.7V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | COMMERCIAL EXTENDED |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Turn-off Time | 40000 µs |
| Turn-on Time | 20000 µs |
| 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 |
Where can I find the TPS2085DG4 datasheet?
TPS2085DG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS2085DG4?
Compatible alternatives and drop-in replacements for TPS2085DG4:
Frequently Asked Questions
How many independent load channels does the TPS2085DG4 provide and what is the per-channel current rating?
The TPS2085DG4 integrates 4 independent high-side MOSFET switch channels, each rated for 0.5A continuous output current with a 1A peak current limit before the overcurrent protection trips. This allows a single IC to replace four discrete P-channel MOSFETs in USB port power switching, saving PCB area and simplifying BOM management.
What protection features are built into the TPS2085 and can these replace external discrete protection components?
The TPS2085 integrates over-current shutdown, thermal shutdown, transient protection, and under-voltage lockout on all 4 channels. These built-in protections eliminate the need for external poly-fuses, NTC thermistors, or TVS diodes on each load rail, reducing component count by at least 8 passive parts in a typical 4-port USB power distribution application.
What supply voltage range does TPS2085DG4 support and does it operate from a Li-ion battery in portable designs?
The TPS2085DG4 operates from 2.7V to 5.5V, covering the discharge range of a 2-cell lithium-ion battery pack (approximately 3.0V minimum). This makes it suitable for battery-powered docking stations, portable test equipment, and mobile device accessories where the supply voltage drops below 3.3V during deep discharge cycles.
How does the TPS2085's 16-pin SOIC package compare to using four separate power switch ICs for the same function?
Consolidating 4 channels into one 16-pin SOIC package measures approximately 9.9 mm × 3.9 mm versus roughly 4 × 5 mm² for four SOT-23 or single-channel SOIC switches individually, cutting the total switch footprint by over 50%. The single-package approach also reduces solder joints from 20+ to 16, improving assembly yield in high-volume consumer electronics manufacturing.
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Why Buy from FindMyChip
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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