Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Load Input | 0.6 V to VBIAS |
| Bias Supply | 2.5 V to 5.7 V |
| Continuous Current | 6 A maximum stated |
| On-Resistance | 16 mΩ typical with VBIAS = 5.7 V |
| Quiescent Current | 37 µA typical at VIN = VBIAS = 5 V |
| Logic | Compatible with 1.2/1.8/2.5/3.3-V control levels |
| Timing / Protection | Configurable rise time, thermal shutdown, optional QOD |
| Exact Package / Packing | WSON (DSG), 8 pins, 2 mm × 2 mm; 3000-piece large reel; marking 13XH |
Product Overview
TPS22975DSGR is a high-current low-RON load switch for processor, SSD and telecom subrails. A separate VBIAS supply lets the internal gate drive maintain low resistance even when the switched VIN rail is as low as 0.6 V.
At 6 A, the 16-mΩ typical resistance still produces significant conduction heat, so exposed-pad layout and copper spreading are essential. The current rating is only useful when the board thermal design supports it.
The separate bias rail also changes sequencing considerations: VBIAS availability and control logic must be considered independently from the switched VIN domain.
For related devices, see HKEQGOO’s Power Distribution Switches, Load Drivers category.
Technical Specifications
| Parameter | Verified Information |
|---|---|
| Manufacturer | Texas Instruments |
| Exact MPN | TPS22975DSGR |
| Load Input | 0.6 V to VBIAS |
| Bias Supply | 2.5 V to 5.7 V |
| Continuous Current | 6 A maximum stated |
| On-Resistance | 16 mΩ typical with VBIAS = 5.7 V |
| Quiescent Current | 37 µA typical at VIN = VBIAS = 5 V |
| Logic | Compatible with 1.2/1.8/2.5/3.3-V control levels |
| Timing / Protection | Configurable rise time, thermal shutdown, optional QOD |
| Exact Package / Packing | WSON (DSG), 8 pins, 2 mm × 2 mm; 3000-piece large reel; marking 13XH |
| Manufacturer Status | Active / Production |
| Part Marking | 13XH |
Functional Highlights
Bias-assisted gate drive keeps RON low on sub-1-V rails
This is useful for high-current core/peripheral rails where a self-powered switch would lose gate overdrive as VIN falls.
6-A integration can replace a discrete PFET/load-control stage
Slew control and thermal shutdown are built around a very low-resistance switch in one small package.
Design Considerations
- Sequence VBIAS, VIN and ON according to datasheet conditions.
- Calculate I²R/package temperature at worst-case RON, not only the 16-mΩ typical value.
- Use exposed-pad copper/vias appropriate for multi-amp current and heat.
Product Status and Exact Order Code
Manufacturer status: Active / Production
Texas Instruments lists TPS22975DSGR as Active / Production; WSON (DSG), 8 pins; 3000-piece large tape and reel; −40°C to +105°C; marking 13XH.
Related Engineering Resources
Quality & Verification Support
Third-party inspection or testing can be arranged according to customer requirements. Testing fees are borne by the buyer. Additional verification requirements can be discussed before shipment. After an order is placed, physical product, label, packaging, and Date Code photos may be provided where appropriate.
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