TPS66020YBGR - 20V Sink and 5V Source Switch | Texas Instruments
MPN: TPS66020YBGR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.5042 | $1.50 |
| 10 | $1.5042 | $15.04 |
| 100 | $1.5042 | $150.42 |
| 500 | $1.5042 | $752.10 |
| 1,000 | $1.5042 | $1,504.20 |
TPS66020YBGR Overview
A USB-C power-path multiplexer is a specialized power-management semiconductor that coordinates power entering or leaving a USB-C device through controlled internal pathways. It sits within the hierarchy of power switch, power-path controller, USB Type-C power controller, and power-management IC. Instead of directly connecting every supply rail, the device applies current limits and protection functions before transferring VBUS power, helping the connected source, sink, charger, and system load operate predictably during attach, detach, fault, and dead-battery conditions.
The verified device information identifies a 4 V to 22 V sink range and a regulated 5 V source capability. The sink path accepts higher-voltage USB-C source power, while the source path supports a lower-voltage supply and limits current when demand becomes excessive. The integrated 3.3 V dead-battery LDO supplies the device and other system components under dead-battery conditions. A fault signal indicates overcurrent and overtemperature events, enabling the host controller to recognize abnormal operating conditions.
Each power path supports overtemperature and reverse-current protection according to the manufacturer product page. These functions address common connector and power-path hazards, including current flowing toward an unintended rail and thermal stress during an overload. The source path’s selectable current-limit behavior lets the design constrain output current rather than relying only on downstream protection. Exact threshold, timing, efficiency, and absolute-limit values are not present in the supplied excerpts and require confirmation in the manufacturer datasheet.
Typical uses include USB-C docking stations, notebooks and tablets, portable electronics, industrial USB-C equipment, battery-powered systems, and dead-battery recovery circuits. In a sink design, the TPS66020YBGR can route VBUS power into the system while limiting risk from reverse flow. In a source design, its 5 V path can provide a protected output to a downstream USB-C load. The 1.61 mm by 2.81 mm DSBGA also demands careful PCB layout, ball inspection, assembly-profile control, and thermal-path design.
Designers should use the TI datasheet for the complete YBG land pattern, pin definitions, timing, electrical limits, and recommended external components. Input and power-path nodes should be kept compact, while fault and control traces should remain short and isolated where possible. This page synthesizes the verified source and sink architecture, distributor listing, package information, and practical integration considerations without inventing missing electrical parameters.
Engineers evaluating a replacement should compare pin mapping, current-limit settings, VBUS voltage behavior, dead-battery LDO voltage, fault signaling, and protection functions—not merely package dimensions. Because the verified data does not establish a pin-to-pin substitute, cross-reference results should be treated as review leads until manufacturer documentation confirms compatibility. Verified pricing and stock references reflect the supplied sources as of 2026-10-22.
Drop-in alternatives for TPS66020YBGR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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Request AlternativesTPS66020YBGR Maximum Ratings & Electrical Characteristics
| Product Type | Integrated Source and Sink Power Multiplexer |
| Sink Power-Path Voltage Range | 4 V to 22 V |
| Source Power-Path Voltage | 5 V |
| Dead-Battery LDO Voltage | 3.3 V |
| Source Current Control | Constant-current operation above selected current-limit threshold |
| Power-Path Count | 1 integrated source and 1 integrated sink path |
| Reverse-Current Protection | Supported on each power path |
| Overtemperature Protection | Supported on each power path |
| Fault Output | Indicates overcurrent and overtemperature events |
| Interface | USB-C Power Delivery |
| Package | 28-pin DSBGA (YBG), 1.61 mm x 2.81 mm |
| Pin Count | 28 pins |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -10 °C to 85 °C |
TPS66020YBGR 28-pin dsbga (ybg), 1.61 mm x 2.81 mm Pin Configuration Guide
Pin configuration for TPS66020YBGR (28-pin dsbga (ybg), 1.61 mm x 2.81 mm package). This power device features gate, drain, and source terminals. For non-polarized packages, refer to the manufacturer datasheet for exact pin 1 orientation and footprint details. Common applications include power supply design, motor driving, and load switching.
No detailed pinout data available for TPS66020YBGR.
Refer to the datasheet for full pin configuration.
Typical Applications
TPS66020YBGR is suitable for 6 applications: USB-C Docking Station Sink Path, Notebook and Tablet USB-C Input, Battery-Powered Portable Electronics, Industrial USB-C Power Controller, USB-C Source Expansion Port, Dead-Battery Recovery System.
USB-C Docking Station Sink Path
The TPS66020YBGR fits a docking-station design that receives power from a USB-C source and distributes it to internal circuitry. Its verified sink path accepts 4 V to 22 V, allowing the same controller family to handle ordinary 5 V sources and 20 V power-delivery sources. Reverse-current and overtemperature protection reduce power-path hazards, while the fault output reports overcurrent or thermal events to the system controller. In a dual-role dock, the protected 5 V source path can support a downstream port without duplicating separate multiplexing logic. The compact 1.61 mm by 2.81 mm YBG package helps preserve board area, although the design must follow the exact TI land pattern and assembly profile.
Recommended
Notebook and Tablet USB-C Input
The TPS66020YBGR is suitable for the managed VBUS input of a notebook or tablet that must accept both conventional and higher-voltage USB-C sources. The verified 4 V to 22 V sink range covers a 20 V power-delivery source, and the integrated current limit helps control fault behavior during cable or load abnormalities. Reverse-current protection supports safe transitions when the system rail changes state. For a portable device, the 3.3 V dead-battery LDO offers a defined source for controller and low-power system components when the battery is deeply discharged. Designers must still implement the complete charge, system-power, and USB-C policy around this protected power path.
Recommended
Battery-Powered Portable Electronics
The TPS66020YBGR gives compact portable equipment a way to combine USB-C input, controlled source output, and dead-battery support in one YBG device. Its 3.3 V dead-battery LDO is specifically relevant when the system must remain partially alive to negotiate connection or finish safe shutdown after battery voltage falls. The 5 V source path limits current when downstream demand crosses the selected threshold, and both paths include overtemperature and reverse-current protection. In a wearable, instrument, or portable peripheral, this consolidation can reduce separate protection and switching functions, but the 28-ball BGA still demands fine-pitch assembly, cleanliness, and test access.
Recommended
Industrial USB-C Power Controller
The TPS66020YBGR can serve as the local power-path element in industrial USB-C equipment where fault containment and controlled sourcing are more important than basic connector recognition. The sink path accepts 4 V to 22 V, while the source side is centered on a protected 5 V output with selectable constant-current limiting. Overtemperature and reverse-current protection address two recurring field-fault conditions, and the fault output lets a supervisory controller record or react to abnormal events. The -10 °C to 85 °C verified operating range suits many indoor and controlled industrial environments. Final qualification must still consider enclosure temperature, cable fault behavior, and production-test requirements from the manufacturer documentation.
Recommended
USB-C Source Expansion Port
The TPS66020YBGR can provide a controlled 5 V path for a downstream USB-C port while the main system remains the power-source owner. According to Texas Instruments, the source path enters constant-current mode when the load exceeds the selected threshold, limiting stress during an overload instead of allowing unlimited source current. The integrated fault function reports overcurrent and overtemperature events, allowing the host controller to disable or re-evaluate the port. Because the package also contains a 4 V to 22 V sink path and dead-battery LDO, it is especially useful in dual-role hubs that need both directions managed in a compact area.
Recommended
Dead-Battery Recovery System
The TPS66020YBGR’s 3.3 V dead-battery LDO supports systems that need controller power while the primary battery is too depleted for normal operation. In a laptop, tablet, or serviceable portable product, that auxiliary rail can enable communication, safe shutdown, or attachment detection without drawing energy directly from the depleted battery. The same IC retains a protected 5 V source path, a 4 V to 22 V sink path, reverse-current protection, and thermal fault indication, allowing several power-state functions to share one package. The system must still define when the LDO is enabled and how its current budget interacts with charger, power-path, and USB-C controller requirements.
Recommended
Recommended Products Summary
Engineering reference data for TPS66020YBGR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product |
|---|---|
| Brand | Texas Instruments |
| Package | 28-pin DSBGA (YBG), 1.61 mm x 2.81 mm |
| Product Type | Integrated USB-C source and sink power multiplexer |
| Sink Voltage Range | 4 V to 22 V |
| Source Voltage | 5 V |
| Dead-Battery LDO | 3.3 V |
| Source Current Limiting | Selectable threshold; constant-current mode above limit |
| Protection Functions | Overtemperature and reverse-current protection on each power path |
| Fault Reporting | Fault output indicates overcurrent and overtemperature events |
| Operating Temperature | -10 °C to 85 °C |
Design Notes
Use the exact TPS66020 YBG land pattern and assembly profile from Texas Instruments rather than a generic 28-ball BGA footprint. Keep VBUS, source, sink, and LDO current paths compact, and route high-current copper without unnecessary loops. Fine-pitch assembly also makes cleanliness, solder-paste control, X-ray or optical inspection, and component-placement traceability especially important.
Treat the programmable source current limit as a protection boundary, not as a substitute for system fusing. Confirm the selected threshold against startup current, inrush, cable resistance, and the maximum allowed fault current. During design review, verify whether normal startup intentionally enters constant-current operation and ensure downstream loads can tolerate the resulting droop before relying on this behavior.
Do not infer pin compatibility from the YBG package name alone. A valid drop-in replacement must reproduce the exact 28-ball map, control polarity, source current-limit implementation, reverse-current behavior, fault logic, and dead-battery LDO function. The supplied cross-reference search returned tools but no confirmed substitute, so schematic changes or PCB rework should not be assumed.
Separate sensitive control and fault traces from high-current VBUS and power-path copper where practical. Follow manufacturer recommendations for gate-control routing and bypass placement because long or shared return paths can affect switching behavior. Validate the final board with current-limit, overcurrent, reverse-current, and thermal fault cases rather than testing only nominal source-to-sink operation.
Compliance Information
The verified excerpts do not provide explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. Compliance must be confirmed from the current manufacturer product documentation or supply-chain declarations.
