{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS22943DCKR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS22943DCKR","canonicalUrl":"https://icboms.com/texas-instruments/TPS22943DCKR","factsUrl":"https://icboms.com/api/mcp/products/TPS22943DCKR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS22943DCKR, general-purpose high-side load switch, 1:1 ratio, 1.62 V–5.5 V load, 40 mA max, 400 mOhm Rds(on), SC-70-5, -40°C–125°C.","salesMarkdown":"## 400 mOhm Rds(on) — voltage drop at the rail edge The TPS22943DCKR is a single-channel, high-side P-channel load switch from Texas Instruments, designed for general-purpose power-rail sequencing and distribution. The typical on-resistance of 400 mOhm produces a 16 mV drop at the 40 mA maximum output current — negligible on a 3.3 V rail but worth checking at the 1.62 V minimum, where the drop consumes about 1% of the headroom. ## Integrated protection — fixed current limit, OTP, UVLO The switch integrates fixed current limiting, over-temperature protection, and under-voltage lockout (UVLO). The current limit is not adjustable, so the designer must verify that the load inrush does not trip the limit during startup. The UVLO holds the switch off until the input voltage rises above the threshold, preventing partial-on states during power ramp. These protections eliminate the need for a separate supervisor or current-sense resistor on the output. The SC-70-5 package (also known as SOT-353) keeps the footprint small — 2.0 mm × 2.1 mm — suiting space-constrained boards in motor drives, outdoor telecom, and engine-bay modules.","metaTitle":"TPS22943DCKR Load Switch, 40 mA, 400 mOhm, SC-70-5","metaDescription":"Texas Instruments TPS22943DCKR: 1.62 V–5.5 V high-side load switch, 40 mA max output, 400 mOhm Rds(on), SC-70-5 package. Active lifecycle.","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":"TPS22943","Output Configuration":"High Side","Ratio - Input:Output":"1:1","Operating Temperature":"-40°C~125°C(TJ)","Current - Output (Max)":"40mA","Supplier Device Package":"SC-70-5","Voltage - Supply (Vcc/Vdd)":"Not Required"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.2400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a10563f87a92465b1dbbfc732399dc72.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS22943DCKR/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS22943DCKR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS22943DCKR 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}}