Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Input | 1.6 V to 5.5 V |
| Continuous Current | 1.5 A maximum stated |
| On-Resistance | 89 mΩ typical at 5 V; 105 mΩ typical at 1.8 V |
| Short Protection | 3 A typical output short protection stated |
| On Current | 8 µA typical |
| Off Current | 2 nA typical |
| Turn-On | Internally controlled slow turn-on to limit inrush |
| Exact Package / Packing | SC70 (DCK), 6 pins; 3000-piece large reel; marking 1CS |
Product Overview
TPS22919DCKR is a self-protected compact load switch that combines a 1.5-A normal load rating with output-short protection and extremely low off-state current. It fits small consumer/embedded rails where fault robustness and battery standby matter together.
Turn-on slew is intentionally slow and internally controlled rather than externally programmed with a CT pin. That simplifies the BOM but gives less freedom to tune startup time than TPS22918/TPS22917.
The SC70-6 footprint is smaller than SOT-23-6 alternatives, but board copper and package heating still need to be checked under sustained high load or short events.
For related devices, see HKEQGOO’s Power Distribution Switches, Load Drivers category.
Technical Specifications
| Parameter | Verified Information |
|---|---|
| Manufacturer | Texas Instruments |
| Exact MPN | TPS22919DCKR |
| Input | 1.6 V to 5.5 V |
| Continuous Current | 1.5 A maximum stated |
| On-Resistance | 89 mΩ typical at 5 V; 105 mΩ typical at 1.8 V |
| Short Protection | 3 A typical output short protection stated |
| On Current | 8 µA typical |
| Off Current | 2 nA typical |
| Turn-On | Internally controlled slow turn-on to limit inrush |
| Exact Package / Packing | SC70 (DCK), 6 pins; 3000-piece large reel; marking 1CS |
| Manufacturer Status | Active / Production |
| Part Marking | 1CS |
Functional Highlights
2-nA off current suits aggressive rail gating
A disabled peripheral can be isolated with very little residual switch leakage, useful in long standby modes.
Integrated short protection adds fault containment beyond a bare load switch
The output is protected against a hard short instead of relying only on thermal shutdown after excessive current.
Design Considerations
- Verify the fixed turn-on timing is acceptable for load capacitance and sequencing requirements.
- Treat the 3-A short-protection figure as a fault behavior, not a continuous operating current.
- Check SC70 thermal rise at the actual 1.5-A duty cycle.
Product Status and Exact Order Code
Manufacturer status: Active / Production
Texas Instruments lists TPS22919DCKR as Active / Production; SC70 (DCK), 6 pins; 3000-piece large tape and reel; marking 1CS.
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.
Request a Quote
To request a quotation, provide the manufacturer part number, required quantity, destination, target Date Code if applicable, and any testing or inspection requirements.
