TPS25820DSSR - USB-C Source Controller, 1.5A VBUS | Texas Instruments
MPN: TPS25820DSSR ✓ ActiveTPS25820DSSR Overview
A USB Type-C source controller is a specialized interface and power-management IC that manages the behavior of a USB Type-C port when the device acts as a source or downstream-facing port. The TPS25820DSSR combines USB Type-C source detection and contract logic with an integrated 1.5 A VBUS switch, allowing a system to supply power to a connected USB-C sink while protecting the port against excessive current. In the broader component hierarchy, it belongs to the USB interface IC and power-management IC families rather than being a general-purpose logic device or standalone discrete MOSFET.
The primary headline specifications are a 4.5 V to 5.5 V operating supply range, integrated 1.5 A VBUS power-switch capability, and a 12-WSON DSS package. The package is only 12 pins and is suitable for compact power-adapter and peripheral designs. The operating temperature range of -40 °C to 125 °C supports use across consumer, industrial, and temperature-qualified equipment, subject to the complete manufacturer datasheet for electrical limits and qualification details. The device also provides VCONN support, which is important for applications that need controlled VCONN behavior.
TPS25820DSSR is positioned as a simple USB Type-C controller rather than a full USB Power Delivery policy engine. The Texas Instruments product page describes it as a USB Type-C source controller with an integrated 1.5 A USB VBUS power switch, while the TPS25820 evaluation module provides reference circuitry for evaluating the controller. Designers should therefore verify the required USB Type-C behavior, sink advertisement method, VCONN implementation, and fault-handling requirements against the datasheet before finalizing a product architecture.
Typical uses include USB-C wall adapters, charging cables and power modules, docking stations, laptop and tablet charging accessories, industrial USB-C power supplies, and compact USB-C peripheral designs. The integrated switch can reduce the number of external power-path components when the design requires a modest 1.5 A source capability. A designer selecting a higher-current USB-C source solution would need a different controller and power-switch architecture rather than assuming that TPS25820DSSR can deliver more than its specified 1.5 A.
The principal design consideration is the relationship between the external USB-C connector, input supply, output power path, and the controller's internal protection functions. The input supply must remain within the verified 4.5 V to 5.5 V range, and layout should minimize high-current loop area between the switch, connector, and capacitors. Decoupling, current-limit behavior, VCONN routing, thermal performance, and the exposed-pad grounding requirements must be checked in the manufacturer datasheet and evaluation-module layout.
This product summary combines verified manufacturer and distributor information, package and application context, comparison guidance, and practical implementation notes to help engineers evaluate TPS25820DSSR for USB Type-C source designs beyond a basic catalog description.
Drop-in alternatives for TPS25820DSSR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
TPS25821DSSR
✅ Drop-In📋 Reference alternative (not in catalog)
TPS25820DSST
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TPS25820DSSR
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →TPS25821DSST
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TPS25820DSS
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TPS25820DSSR Specifications
| Product Type | USB Type-C source controller and power switch |
| Output Current | 1.5 A |
| Operating Supply Voltage | 4.5 V to 5.5 V |
| Operating Temperature | -40 °C to 125 °C |
| Package | 12-WSON (DSS) |
| Package Pin Count | 12 pins |
| Mounting Type | Surface Mount |
| USB Interface | USB Type-C |
| Source Role | USB Type-C source controller |
| Power Switch | Integrated VBUS power switch |
| VCONN Support | Yes |
| Nominal VBUS Current | 1.5 A |
TPS25820DSSR 12 pins Pin Configuration Guide
Pin configuration for TPS25820DSSR (12 pins package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for TPS25820DSSR.
Refer to the datasheet for full pin configuration.
Typical Applications
TPS25820DSSR is suitable for 6 applications: USB-C Wall Adapter, USB-C Charging Dock, Compact USB-C Power Module, Industrial USB-C Supply, USB-C Peripheral Power Port, Laptop and Tablet Accessory Power.
USB-C Wall Adapter
The TPS25820DSSR fits compact USB-C wall adapters because it combines a USB Type-C source controller with an integrated 1.5 A VBUS power switch. The verified 4.5 V to 5.5 V operating range supports a conventional 5 V adapter architecture, while the 12-WSON DSS package preserves board area. Designers should validate connector advertisement, VCONN routing, current limiting, and the input power stage against the manufacturer reference design.
Recommended
USB-C Charging Dock
TPS25820DSSR can provide the source-side control and VBUS switching required in a compact USB-C dock that supplies up to the device's 1.5 A target current. Its integrated switch reduces the external power-path component count in eligible designs. Dock designers must confirm the selected sink advertisement, cable-current assumptions, thermal performance, and fault behavior because the supplied information does not specify every timing or protection threshold.
Recommended
Compact USB-C Power Module
The TPS25820DSSR is suitable for a compact USB-C power module where source control and a protected 1.5 A VBUS path are needed in a 12-pin surface-mount package. Its 4.5 V to 5.5 V operating range aligns with a 5 V-oriented module architecture. The primary engineering check is the total thermal and electrical behavior of the complete module rather than the controller alone, including connector losses, cable faults, and startup sequencing.
Recommended
Industrial USB-C Supply
TPS25820DSSR can be evaluated for industrial USB-C power supplies because the verified operating-temperature specification spans -40 °C to 125 °C and the integrated VBUS switch provides a defined 1.5 A source function. Industrial suitability still depends on transient immunity, EMC, environmental qualification, and enclosure thermal performance. The supplied data does not confirm AEC-Q100 qualification, so that requirement must be handled separately.
Recommended
USB-C Peripheral Power Port
TPS25820DSSR can serve as the source controller in a powered USB-C peripheral that exposes a downstream-facing port for accessories. The integrated 1.5 A switch helps establish a controlled VBUS output, while VCONN support addresses the identified source-controller feature set. The design should use the datasheet to verify whether source advertisement and VCONN behavior match the peripheral's intended role, and the PCB should minimize switching-loop resistance.
Recommended
Laptop and Tablet Accessory Power
TPS25820DSSR is appropriate for selected laptop and tablet charging accessories whose required source current is within 1.5 A and whose operating supply is 4.5 V to 5.5 V. It simplifies source-port implementation by integrating the Type-C controller and VBUS switch. Engineers must confirm cable and connector current ratings, advertising behavior, and thermal margin. Accessories requiring full USB Power Delivery or greater current should use a controller with those explicit capabilities.
Recommended
Recommended Products Summary
Engineering reference data for TPS25820DSSR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TPS25821DSSR | TPS25820DSST | TPS25821DSST | TPS25820DSS |
|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 12-WSON (DSS) | 12-WSON (DSS) | 12-WSON (DSS) | 12-WSON (DSS) | 12-WSON (DSS) |
| Device Function | USB Type-C source controller and VBUS power switch | USB Type-C DFP controller | TPS25820 source controller and power switch | USB Type-C DFP controller | TPS25820 source controller and power switch |
Key Differentiators
- Integrated source control and protected VBUS path (vs TPS25821DSSR)
- Defined 1.5 A source-switch capability (vs TPS25820DSST)
- Wide verified operating-temperature range (vs TPS25821DSSR)
Design Notes
Design the VBUS power path around the specified 1.5 A integrated-switch rating and the connector and cable limits of the finished product. Use the verified 4.5 V to 5.5 V operating range as the design constraint, and verify the exact input, output, and protection limits in the manufacturer datasheet. Place the required input and output capacitors close to the device pins to control hot-plug transients and maintain the intended power-path stability.
Keep the high-current VBUS loop compact by following the datasheet layout guidance and the TPS25820EVM-835 reference board. Connect the exposed pad and required power planes according to the official package and land-pattern requirements. Route VCONN and CC signals away from noisy power paths where practical, and inspect the assembled board for adequate copper area and thermal spreading under sustained 1.5 A operation.
Do not assume that a USB-C source controller automatically supports full USB Power Delivery, higher current negotiation, or every VCONN behavior. TPS25820DSSR is identified as a source controller with an integrated 1.5 A switch and VCONN; confirm the required advertisement method, attach sequence, fault response, and cable-current requirements against the datasheet. Also confirm that the source-side connector and cable ratings support the intended load.
Compliance Information
The supplied manufacturer and distributor snippets do not provide explicit compliance declarations. The operating temperature range of -40 °C to 125 °C is verified, but it must not be treated as proof of AEC-Q100 qualification.
