Specifications
| Type | Description |
|---|---|
| Part Number | TPS65086 |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Package Case | VQFN (64), 8.00 mm x 8.00 mm body |
| Input Voltage Range | 5.6 V to 21 V |
| Buck Controller Count | 3 |
| Buck Controller Output Voltage Range | 0.41 V to 1.67 V in 10 mV steps or 1 V to 3.575 V in 25 mV steps |
| Buck Controller Current Scaling | Scalable output current using external FETs |
| Synchronous Buck Converter Count | 3 |
| Synchronous Buck Converter Input Voltage Range | 4.5 V to 5.5 V |
| Synchronous Buck Converter Output Current | Up to 3 A |
| Synchronous Buck Converter Output Voltage Range | 0.41 V to 1.67 V in 10 mV steps or 0.425 V to 3.575 V in 25 mV steps |
| Adjustable LDO Regulator Count | 3 |
| LDOA1 Output Voltage Range | 1.35 V to 3.3 V |
| LDOA1 Output Current | Up to 200 mA |
| LDOA2 Output Voltage Range | 0.7 V to 1.5 V |
| LDOA2 Output Current | Up to 600 mA |
| LDOA3 Output Voltage Range | 0.7 V to 1.5 V |
| LDOA3 Output Current | Up to 600 mA |
| DDR Termination Regulator | VTT LDO |
| Load Switch Count | 3 |
| Load Switch Output Current | Up to 300 mA |
| Load Switch On Resistance | RDS(on) < 96 mOhm |
| Fixed LDO Output Voltage | 5 V |
| LDO5 Function | Power supply for SMPS gate drivers and LDOA1 |
| External 5 V Buck Switching | Automatic switch to external 5 V buck |
| Configurable GPI Pins | 6 |
| Configurable GPO Pins | 4 |
| Interrupt Output | Open-drain IRQB |
| I2C Standard Mode Speed | 100 kHz |
| I2C Fast Mode Speed | 400 kHz |
| I2C Fast Mode Plus Speed | 1 MHz |
| Package Pin Count | 64 pins |
| Thermal Pad Requirement | Must be connected to system power ground plane |
| Datasheet Status | request_only |
Product Overview
The TPS65086 is a Texas Instruments configurable multirail PMU for Power_Management designs requiring multiple regulated rails from a 5.6 V to 21 V device VIN range. Its power architecture includes three variable-output synchronous step-down controllers using D-CAP2 topology and three variable-output synchronous step-down converters using DCS-Control topology.
The buck controllers provide I2C DVS voltage selection from 0.41 V to 1.67 V in 10 mV steps or 1 V to 3.575 V in 25 mV steps, with scalable output current using external FETs. The integrated BUCK3, BUCK4, and BUCK5 converters operate from 4.5 V to 5.5 V and deliver up to 3 A each.
Additional rails include LDOA1 at 1.35 V to 3.3 V up to 200 mA, LDOA2 and LDOA3 at 0.7 V to 1.5 V up to 600 mA, a VTT LDO for DDR memory termination, three load switches up to 300 mA, and a fixed 5 V LDO5 for SMPS gate drivers and LDOA1. The 64-pin VQFN package requires the PGND thermal pad to connect to the system power ground plane.
Key Features
- 5.6 V to 21 V device VIN operating range
- Three D-CAP2 synchronous step-down buck controllers
- Controller outputs support I2C DVS voltage selection
- External FETs allow scalable buck controller output current
- Three DCS-Control synchronous buck converters, up to 3 A each
- Three adjustable LDO regulators with I2C-selectable outputs
- VTT LDO supports DDR memory termination rails
- Three slew-rate-controlled load switches, up to 300 mA
- Fixed 5 V LDO supplies SMPS gate drivers and LDOA1
- I2C interface supports 100 kHz, 400 kHz, and 1 MHz
Typical Applications
- Configurable multirail power systems
- DDR memory termination supplies
- I2C-controlled voltage rail sequencing
- Processor core and auxiliary rails
- Systems requiring external-FET current scaling
- 5 V gate-driver supply generation
- Power-good monitored rail designs
Procurement Notes
When requesting a quote for TPS65086, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For power IC and power device sourcing, voltage rating, current rating, power dissipation, package thermal performance, protection features, qualification grade and application conditions should be reviewed before approval.
FAQ
What input voltage range does the TPS65086 support?
The TPS65086 device VIN operating range is 5.6 V to 21 V, according to the extracted datasheet features and description. This range applies to the device input rather than each individual regulator input.
How many buck regulators are included in the TPS65086?
The TPS65086 includes three variable-output synchronous step-down controllers and three variable-output synchronous step-down converters. The controllers use D-CAP2 topology, while the integrated converters use DCS-Control topology.
What package is used for the TPS65086?
The TPS65086 is supplied in a 64-pin VQFN package with an 8.00 mm x 8.00 mm body. The PGND thermal pad must be connected to the system power ground plane.
Which I2C interface speeds are supported by the TPS65086?
The TPS65086 supports I2C Standard mode at 100 kHz, Fast mode at 400 kHz, and Fast Mode Plus at 1 MHz for device configuration and voltage control functions.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 25, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.