Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Input | 1.0 V to 5.5 V |
| Continuous Current | 2 A maximum stated |
| On-Resistance | 52 mΩ typical at 5 V; 53 mΩ typical at 3.3 V |
| Quiescent Current | 8.3 µA typical at 3.3 V |
| Logic | Low ON threshold supports 1-V-or-higher GPIO control |
| Rise Time | Configurable with CT pin |
| Output Discharge | Adjustable quick-output-discharge path |
| Exact Package / Packing | SOT-23 (DBV), 6 pins; 3000-piece large reel; −40°C to +105°C; marking 13MW |
Product Overview
TPS22918DBVR is a low-voltage 2-A load switch optimized for lower conduction loss than ultra-low-leakage parts such as TPS22917. Its 52-mΩ-class RON reduces rail drop and I²R heating when a peripheral draws meaningful current.
The CT pin controls turn-on slew so inrush into downstream capacitance can be shaped without adding a discrete MOSFET gate network. QOD is separately configurable for turn-off behavior.
Unlike TPS22917, the main selection story is low RON and simple 2-A rail control rather than true reverse-current blocking or nanamp shutdown leakage. Those features should not be mixed across the two families.
For related devices, see HKEQGOO’s Power Distribution Switches, Load Drivers category.
Technical Specifications
| Parameter | Verified Information |
|---|---|
| Manufacturer | Texas Instruments |
| Exact MPN | TPS22918DBVR |
| Input | 1.0 V to 5.5 V |
| Continuous Current | 2 A maximum stated |
| On-Resistance | 52 mΩ typical at 5 V; 53 mΩ typical at 3.3 V |
| Quiescent Current | 8.3 µA typical at 3.3 V |
| Logic | Low ON threshold supports 1-V-or-higher GPIO control |
| Rise Time | Configurable with CT pin |
| Output Discharge | Adjustable quick-output-discharge path |
| Exact Package / Packing | SOT-23 (DBV), 6 pins; 3000-piece large reel; −40°C to +105°C; marking 13MW |
| Manufacturer Status | Active / Production |
| Part Marking | 13MW |
Functional Highlights
Low RON preserves low-voltage rail headroom
At ampere-class load current, tens of milliohms can materially reduce voltage drop compared with higher-resistance low-leakage switches.
1-V-capable logic eases always-on controller interfaces
A low-voltage GPIO can sequence a higher peripheral rail without an external level shifter.
Design Considerations
- Calculate inrush from CLOAD and selected CT ramp time.
- Include worst-case RON and ambient temperature in the rail-drop/thermal budget.
- Do not assume TPS22917 reverse-blocking behavior on TPS22918.
Product Status and Exact Order Code
Manufacturer status: Active / Production
Texas Instruments lists TPS22918DBVR as Active / Production; SOT-23 (DBV), 6 pins; 3000-piece large tape and reel; −40°C to +105°C; marking 13MW.
Related Engineering Resources
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