Specifications
| Type | Description |
|---|---|
| Part Number | TPS25751 |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Package / Case | TPS25751D: 38-pin QFN (REF), 4.0 mm x 6.0 mm; TPS25751S: 32-pin QFN (RSM), 4.0 mm x 4.0 mm |
| USB Power Delivery Support | USB PD 3.1 certified silicon; TPS25751 TID#: 10306 |
| USB Type-C Role Support | Optimized for sink-only UFP and DRP applications in USB-C PD power applications |
| Programmable Power Supply Support | Supports PPS source and sink in USB PD applications |
| 5 V Source Load Switch | Integrated 5 V, 3 A, 36 mOhm sourcing switch for TPS25751S and TPS25751D |
| High Voltage Bidirectional Load Switch | Integrated 20 V, 5 A, 16 mOhm bidirectional load switch; TPS25751D only |
| High Voltage Path Protection | Reverse current protection, undervoltage protection, overvoltage protection, and slew-rate control for high-voltage bidirectional power path |
| 5 V Source Path Protection | Undervoltage protection, overvoltage protection, and current limiting for inrush current protection on 5 V / 3 A source power path |
| CC Pin Tolerance | 26 V tolerant for protection when connected to non-compliant devices |
| GPIO Count | 10 configurable GPIOs |
| BC1.2 Support | Advertisement and detection supported; GPIO4/USB_P and GPIO5/USB_N can connect to D+ and D- |
| Dead Battery Support | 3.3 V LDO output |
| Power Supply Sources | 3.3 V or VBUS source for device power supply |
| I2C Controller Ports | 1 I2C controller port |
| I2C Target Ports | 1 I2C target port |
| Battery Charger Control | Integrated I2C control for TI battery chargers; compatible examples include BQ25756, BQ25756E, BQ25790, BQ25792, BQ25798, BQ25713, BQ25731 |
| Liquid Detection | Measures directly at the Type-C connector with integrated error handling and protection; GPIO4/USB_P/LD1 and GPIO5/USB_N/LD2 can be used |
| TPS25751D Integrated 5 V Source Load Switch | Yes; device comparison table |
| TPS25751D Integrated High Voltage Bidirectional Load Switch | Yes; PPHV path |
| TPS25751D External Bidirectional Gate Driver | No; PP_EXT path |
| TPS25751S Integrated 5 V Source Load Switch | Yes; device comparison table |
| TPS25751S Integrated High Voltage Bidirectional Load Switch | No; PPHV path |
| TPS25751S External Bidirectional Gate Driver | Yes; PP_EXT path |
| TPS25751D VBUS_IN Range | 5 V to 20 V input on VBUS_IN pins 23, 24, 25 |
| TPS25751D PPHV Function | High-voltage sinking node in the system on PPHV pins 20, 21, 22 |
| TPS25751D PP5V Function | 5 V system supply to VBUS and supply for CC pins as VCONN on PP5V pins 34, 35 |
| TPS25751D LDO_1V5 Function | Core LDO output; cannot source current to external circuits; bypass with capacitance to GND |
| TPS25751D LDO_3V3 Function | Output of supply switched from VIN_3V3 or VBUS LDO; bypass with capacitance to GND |
| TPS25751D VIN_3V3 Function | Supply for core circuitry and I/O; bypass with capacitance to GND; pin 38 |
| TPS25751S External MOSFET Gate Outputs | GATE_VSYS and GATE_VBUS connect to N-channel MOSFETs with source tied to VSYS or VBUS |
| Datasheet Status | request_only |
Product Overview
TPS25751 is a Texas Instruments USB-C Power Delivery controller for Power_Management designs. The silicon is USB PD 3.1 certified under TPS25751 TID#: 10306 and is optimized for sink-only UFP and DRP USB-C PD power applications. It supports PPS source and sink operation and can be supplied from either 3.3 V or VBUS.
The family is offered as TPS25751D in a 38-pin QFN (REF), 4.0 mm x 6.0 mm package and TPS25751S in a 32-pin QFN (RSM), 4.0 mm x 4.0 mm package. Both versions integrate a 5 V, 3 A, 36 mOhm sourcing switch with undervoltage protection, overvoltage protection, and current limiting for inrush protection. TPS25751D also integrates a 20 V, 5 A, 16 mOhm bidirectional load switch with reverse current protection, undervoltage protection, overvoltage protection, and slew-rate control.
System integration features include 10 configurable GPIOs, one I2C controller port, one I2C target port, BC1.2 advertisement and detection through USB_P and USB_N, and liquid detection at the Type-C connector using GPIO4/USB_P/LD1 and GPIO5/USB_N/LD2. The device also provides a 3.3 V LDO output for dead-battery support and integrated I2C control for compatible TI battery chargers.
Key Features
- USB PD 3.1 certified silicon
- Optimized for sink-only UFP and DRP applications
- Supports PPS source and sink operation
- Integrated 5 V, 3 A, 36 mOhm sourcing switch
- TPS25751D integrates 20 V, 5 A bidirectional switch
- High-voltage path includes reverse current and voltage protections
- 26 V tolerant CC pins for non-compliant device protection
- 10 configurable GPIOs for Type-C system functions
- BC1.2 advertisement and detection through USB_P and USB_N
- Liquid detection at the Type-C connector
- One I2C controller port and one I2C target port
- Integrated I2C control for selected TI battery chargers
Typical Applications
- USB-C PD power applications
- Sink-only UFP systems
- Dual-role power systems
- PPS source and sink designs
- TI battery charger control
- BC1.2 charge detection interfaces
- Liquid detection at Type-C connectors
- Dead-battery USB-C startup systems
- 5 V VBUS source paths
- High-voltage sinking power paths
Procurement Notes
When requesting a quote for TPS25751, 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 type of device is the TPS25751?
TPS25751 is a Texas Instruments USB-C PD controller in the Power_Management category. It is USB PD 3.1 certified silicon optimized for sink-only UFP and DRP USB-C PD power applications.
Which packages are available for TPS25751 variants?
TPS25751D is listed in a 38-pin QFN (REF), 4.0 mm x 6.0 mm package. TPS25751S is listed in a 32-pin QFN (RSM), 4.0 mm x 4.0 mm package.
Does TPS25751 include integrated USB-C power path switches?
Both TPS25751S and TPS25751D include an integrated 5 V, 3 A, 36 mOhm sourcing switch. TPS25751D also includes an integrated 20 V, 5 A, 16 mOhm high-voltage bidirectional load switch.
What protection functions are listed for the power paths?
The high-voltage bidirectional path includes reverse current protection, undervoltage protection, overvoltage protection, and slew-rate control. The 5 V source path includes undervoltage protection, overvoltage protection, and current limiting for inrush current protection.
What system interfaces does TPS25751 provide?
TPS25751 provides 10 configurable GPIOs, one I2C controller port, and one I2C target port. It also supports BC1.2 advertisement and detection and can measure liquid directly at the Type-C connector.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 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.