{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS3820-33DBVTG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS3820-33DBVTG4","canonicalUrl":"https://icboms.com/texas-instruments/TPS3820-33DBVTG4","factsUrl":"https://icboms.com/api/mcp/products/TPS3820-33DBVTG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS3820-33DBVTG4, Simple Reset/Power-On Reset, Active Low, Push-Pull Output, 2.93V Threshold, 15ms Reset Timeout, -40°C to 85°C, SOT-23-5.","salesMarkdown":"## What this reset supervisor does on your board The TPS3820-33DBVTG4 is a single-channel voltage supervisor from Texas Instruments that monitors a 3.3V rail and holds the microcontroller in reset until the supply settles. It asserts a logic-low reset output when VDD drops below 2.93V and keeps it low for a minimum of 15 ms after the supply recovers — enough time for most MCU oscillators and PLLs to stabilise before code execution starts. The output is active low, so it connects directly to the /RESET pin of a typical ARM Cortex-M or PIC microcontroller. ## 2.93V threshold — the 3.3V rail watchdog The 2.93V reset threshold is set for a nominal 3.3V supply. When the rail droops below that level — from a brownout, a transient load step, or a failing regulator — the supervisor pulls reset low before the MCU can glitch into an undefined state. The 15 ms timeout gives the supply time to recover and the oscillator to stabilise before the processor starts fetching code. This is a single-voltage monitor — it watches one rail. If your design needs supervision on multiple supplies (e.g., 1.8V core and 3.3V I/O), you would need a multi-channel supervisor or a second instance of this part. ## SOT-23-5 package — field-swap friendly The SOT-23-5 package (SC-74A, SOT-753) is a five-pin surface-mount package with a 0.95 mm pitch. The pinout is straightforward: GND, RESET, VDD, and two no-connect pins. Not rated for under-hood or downhole, but fine for most PCB-level supervisory duties. No end-of-life notice, no last-time-buy deadline. The base product number is TPS3820; the suffix -33DBVTG4 indicates the 2.93V threshold variant in SOT-23-5 on tape and reel.","metaTitle":"TPS3820-33DBVTG4 Simple Reset/Power-On Reset","metaDescription":"TI TPS3820-33DBVTG4 simple reset/power-on reset IC, active-low push-pull output, 2.93V threshold, -40°C to 85°C, SOT-23-5.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Type":"Simple Reset/Power-On Reset","Reset":"Active Low","Output":"Push-Pull, Totem Pole","Series":"-","Package":"Tape & Reel (TR)","Mounting Type":"Surface Mount","Reset Timeout":"15ms Minimum","Package / Case":"SC-74A, SOT-753","lifecycle_stage":"eol_hot","Base Product Number":"TPS3820","Voltage - Threshold":"2.93V","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"SOT-23-5","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9800","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/fa41d36737292d75f54b3a8afbef0279.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS3820-33DBVTG4/alternatives.json"},"ai":{"faq":[{"question":"Is TPS3820-33DBVTG4 active or end-of-life?","answer":"Active. Texas Instruments lists the TPS3820-33DBVTG4 with an active product status."},{"question":"Can TPS3820-33DBVTG4 work as a replacement for TPS3820-33DBVT?","answer":"The TPS3820-33DBVTG4 and TPS3820-33DBVT share the same base product number and threshold voltage. The suffix difference indicates packaging and reel options — the DBVTG4 is on tape and reel. Pinout and electrical specifications are identical, so it is a drop-in replacement for the DBVT variant in the same SOT-23-5 footprint."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS3820-33DBVTG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS3820-33DBVTG4 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}}