{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ADP194ACBZ-R7","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"ADP194ACBZ-R7","canonicalUrl":"https://icboms.com/analog-devices/ADP194ACBZ-R7","factsUrl":"https://icboms.com/api/mcp/products/ADP194ACBZ-R7","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices ADP194ACBZ-R7, high-side P-channel load switch, 55 mOhm typical Rds(on), 500 mA max output, 1.1 V to 3.6 V load voltage, slew-rate controlled, reverse current protection, 4-WLCSP package, -40°C to 125°C junction temperature.","salesMarkdown":"## High-side load switch for low-voltage power rails The Analog Devices ADP194ACBZ-R7 is a single-channel, high-side P-channel load switch designed for general-purpose power-domain switching. It operates from a 1.1 V to 3.6 V load voltage range, making it a fit for core and I/O rails in portable, battery-powered, and low-voltage systems. The switch delivers up to 500 mA continuous output current with a typical on-resistance of 55 mOhm, keeping conduction losses low in tight thermal budgets. A built-in slew-rate controlled turn-on limits inrush current and supply droop when the switch engages, which matters for sequencing sensitive loads like RF transceivers, sensor modules, or memory rails. ## Package and assembly — WLCSP footprint The ADP194ACBZ-R7 is supplied in a 4-ball WLCSP (0.74x0.74 mm body), a wafer-level chip-scale package with no molded encapsulant. The tiny footprint saves board area but requires a controlled assembly process: the solder balls are the only standoff, so the PCB land pattern must match the 0.4 mm pitch and the stencil aperture must be sized for consistent solder volume. A Cut Tape option is also available for prototype or low-volume builds. ## Protection features — reverse current blocking This switch includes reverse current protection, which prevents current from flowing backward from the output to the input when the switch is off. That is a practical safeguard in multi-rail designs where one rail may hold residual charge or where a battery is connected to the output side. The switch is controlled by a simple On/Off logic input (non-inverting), and no external Vcc supply is required — the gate drive is derived from the input voltage. ## Temperature grade and deployment environment Rated for a junction temperature range of -40°C to 125°C, the ADP194ACBZ-R7 covers industrial, automotive under-hood, and outdoor telecom enclosures where ambient temperatures can exceed 85°C. The wide temperature range also provides margin for self-heating at the 500 mA maximum load: with 55 mOhm Rds(on), I²R dissipation at full current is about 14 mW, which is negligible for the WLCSP package's thermal path through the PCB pads. ## Lifecycle and sourcing posture The ADP194ACBZ-R7 carries an Active product status from Analog Devices, with ROHS3 compliance. It is not subject to a last-time-buy or phase-out notice. For dual-sourcing or supply resilience, the ADP199ACBZ-R7 is a close functional peer — it shares the same package, pinout, and 500 mA output rating, but offers a lower 40 mOhm Rds(on) and a slightly lower minimum load voltage of 0.9 V. The ADP191ACBZ-R7 adds a load-discharge feature and also covers -40°C to 125°C, but its Rds(on) is higher at 80 mOhm.","metaTitle":"ADP194ACBZ-R7 load switch, 55 mOhm, 500 mA, 4-WLCSP","metaDescription":"ADI ADP194ACBZ-R7 high-side P-channel load switch: 55 mOhm Rds(on), 500 mA output, 1.1-3.6 V load range, reverse current protection, -40 to 125°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Slew Rate Controlled","Interface":"On/Off","Input Type":"Non-Inverting","Output Type":"P-Channel","Switch Type":"General Purpose","Rds On (Typ)":"55mOhm","Mounting Type":"Surface Mount","Package / Case":"4-UFBGA, WLCSP","Voltage - Load":"1.1V ~ 3.6V","lifecycle_stage":"eol_hot","Fault Protection":"Reverse Current","Number of Outputs":"1","Output Configuration":"High Side","Ratio - Input:Output":"1:1","Operating Temperature":"-40°C ~ 125°C (TJ)","Current - Output (Max)":"500mA","Supplier Device Package":"4-WLCSP (0.74x0.74)","Voltage - Supply (Vcc/Vdd)":"Not Required"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.4","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.40000","currency":"USD"},{"qty":10,"price":"$1.25100","currency":"USD"},{"qty":25,"price":"$1.18720","currency":"USD"},{"qty":100,"price":"$0.97520","currency":"USD"},{"qty":250,"price":"$0.91160","currency":"USD"},{"qty":500,"price":"$0.80560","currency":"USD"},{"qty":1000,"price":"$0.63600","currency":"USD"},{"qty":3000,"price":"$0.60000","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/ADP194.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the Rds(on) of ADP194ACBZ-R7?","answer":"The typical on-resistance is 55 mOhm."},{"question":"Does ADP194ACBZ-R7 have reverse current protection?","answer":"Yes, it includes reverse current protection to block back-feed from the output to the input when the switch is off."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/ADP194ACBZ-R7","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/ADP194ACBZ-R7 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}