Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Input | 1.0 V to 5.5 V |
| Continuous Current | 2 A maximum stated |
| On-Resistance | 80 mΩ typical at 5 V; higher at lower VIN |
| On-State Current | 0.5 µA typical |
| Shutdown Leakage | 10 nA typical stated |
| Reverse Blocking | Always-on true reverse-current blocking architecture |
| Timing | Adjustable turn-on plus adjustable output discharge/fall time |
| Exact Package / Packing | SOT-23 (DBV), 6 pins; 3000-piece large reel; marking 1IAF |
Product Overview
TPS22917DBVR is optimized for battery and low-voltage rails where leakage is as important as conduction loss. It operates down to 1 V while consuming only sub-microamp current when on and nanamp-class current when shut down.
True reverse-current blocking helps isolate rails that may be independently powered, such as battery-backed domains or peripherals connected to another supply. Adjustable rise time controls inrush, while the QOD network can define rail fall time.
On-resistance increases substantially as VIN falls, so low-voltage use must consider voltage drop and heating rather than assuming the 5 V RON figure at a 1 V rail.
For related devices, see HKEQGOO’s Power Distribution Switches, Load Drivers category.
Technical Specifications
| Parameter | Verified Information |
|---|---|
| Manufacturer | Texas Instruments |
| Exact MPN | TPS22917DBVR |
| Input | 1.0 V to 5.5 V |
| Continuous Current | 2 A maximum stated |
| On-Resistance | 80 mΩ typical at 5 V; higher at lower VIN |
| On-State Current | 0.5 µA typical |
| Shutdown Leakage | 10 nA typical stated |
| Reverse Blocking | Always-on true reverse-current blocking architecture |
| Timing | Adjustable turn-on plus adjustable output discharge/fall time |
| Exact Package / Packing | SOT-23 (DBV), 6 pins; 3000-piece large reel; marking 1IAF |
| Manufacturer Status | Active / Production |
| Part Marking | 1IAF |
Functional Highlights
Nanamp shutdown leakage protects long battery standby time
A disconnected peripheral rail does not quietly consume the energy savings through the load switch itself.
True reverse blocking enables bidirectional rail isolation
An energized output is prevented from simply back-feeding the input source under the specified reverse-blocking conditions.
Design Considerations
- Calculate RON drop at the actual low VIN rather than using the 5 V headline.
- Check reverse-block activation/current behavior for the expected output-over-input condition.
- Choose CT/QOD from both inrush and discharge timing, especially around shared or retention rails.
Product Status and Exact Order Code
Manufacturer status: Active / Production
Texas Instruments lists TPS22917DBVR as Active / Production; SOT-23 (DBV), 6 pins; 3000-piece large tape and reel; industrial temperature order code; marking 1IAF.
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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