{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS22944DCKR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS22944DCKR","canonicalUrl":"https://icboms.com/texas-instruments/TPS22944DCKR","factsUrl":"https://icboms.com/api/mcp/products/TPS22944DCKR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS22944DCKR, P-channel load switch, 1.62 V to 5.5 V, 100 mA max, 400 mOhm Rds(on) typ, SC-70-5, -40°C to 125°C.","salesMarkdown":"## P-channel load switch for 100 mA rails The on/off interface is non-inverting, and the switch requires no external Vcc supply — the gate drive is self-biased from the load voltage. ## 400 mOhm Rds(on) and the voltage drop budget The typical on-resistance of 400 mOhm sets the conduction loss floor. The P-channel architecture keeps the output slew rate controlled and avoids the inrush spike of an N-channel with a charge pump. ## Integrated fault protection simplifies the BOM Fixed current limiting (non-adjustable, set to the 100 mA maximum), over-temperature shutdown, and under-voltage lockout are all on-chip. No external current-sense resistor, comparator, or supervisor IC is needed. The UVLO threshold is tied to the load voltage — the switch stays off until the input rail rises above the UVLO release point. The SC-70-5 (SOT-353) package footprint is 2.1 mm × 2.0 mm, suiting space-constrained PCBs. The surface-mount profile is standard for reflow assembly. The base product number TPS22944 covers the family, and the DCKR suffix identifies the SC-70-5 tape-and-reel variant. For dual-sourcing, the TPS22943 (same package, lower Rds(on) variant) is a pin-compatible alternative within the same family — confirm the output current rating against your load before substituting.","metaTitle":"Texas Instruments TPS22944DCKR Load Switch, 100 mA, 400 mOhm","metaDescription":"Texas Instruments TPS22944DCKR is a 100 mA P-channel load switch with 400 mOhm Rds(on), 1.62-5.5 V range, and integrated fault protection.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"-","Interface":"On/Off","Input Type":"Non-Inverting","Output Type":"P-Channel","Switch Type":"General Purpose","Rds On (Typ)":"400mOhm","Mounting Type":"Surface Mount","Package / Case":"5-TSSOP, SC-70-5, SOT-353","Product Status":"Active","Voltage - Load":"1.62V ~ 5.5V","lifecycle_stage":"eol_hot","Fault Protection":"Current Limiting (Fixed), Over Temperature, UVLO","Number of Outputs":"1","Base Product Number":"TPS22944","Output Configuration":"High Side","Ratio - Input:Output":"1:1","Operating Temperature":"-40°C~125°C(TJ)","Current - Output (Max)":"100mA","Supplier Device Package":"SC-70-5","Voltage - Supply (Vcc/Vdd)":"Not Required"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.0800","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f57db3b8859c89366015ac55dbf1b209.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS22944DCKR/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum output current of TPS22944DCKR?","answer":"The maximum continuous output current is 100 mA. The fixed current-limit protection trips at that level, so the load must stay below 100 mA."},{"question":"Does TPS22944DCKR require any external components to operate?","answer":"No external bias supply, current-sense resistor, or supervisor IC is needed. The switch is self-biased from the load voltage and integrates fixed current limiting, over-temperature protection, and UVLO."},{"question":"Can TPS22944DCKR be used as a direct replacement for TPS22943?","answer":"The TPS22943 is a pin-compatible variant in the same SC-70-5 package and family. Check the TPS22943 datasheet for its Rds(on) and output current rating — if those meet your load budget, the two parts are interchangeable on the same PCB footprint."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS22944DCKR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS22944DCKR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}