{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS79433DGNR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS79433DGNR","canonicalUrl":"https://icboms.com/texas-instruments/TPS79433DGNR","factsUrl":"https://icboms.com/api/mcp/products/TPS79433DGNR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS79433DGNR LDO, 3.3V fixed output, 250mA, 200mV dropout, PSRR 65dB~40dB (100Hz~100kHz), 8-HVSSOP exposed pad, -40°C to 125°C.","salesMarkdown":"## 3.3 V rail at 250 mA — dropout and PSRR define the fit The TPS79433DGNR is a single-output positive LDO from Texas Instruments, delivering a fixed 3.3 V at up to 250 mA. PSRR measures 65 dB at 100 Hz, rolling off to 40 dB at 100 kHz — this profile attenuates 100/120 Hz rectifier ripple well but passes higher-frequency switching noise from a preceding DC-DC converter unless additional filtering is placed ahead of the LDO. ## Operating range and protection set The 5.5 V maximum input accommodates 5 V ±10% rails without an external pre-regulator. Integrated protection includes over-current, over-temperature, reverse polarity, and under-voltage lockout (UVLO) — the UVLO threshold prevents the pass FET from operating in dropout, which would otherwise raise output ripple. The enable pin allows external sequencing or shutdown to reduce quiescent current to near zero. Quiescent current is 220 µA typical — this is the load-independent overhead drawn from the input rail. In a battery-powered sensor node that spends most of its time in shutdown, the enable pin pulls Iq to zero; in active mode the 220 µA is a fixed cost against the battery budget. ## Package and thermal interface Supplied in an 8-HVSSOP package (3.00 mm width, exposed pad). Without adequate copper, the 250 mA output at high ambient temperature may trigger the over-temperature protection.","metaTitle":"TPS79433DGNR Texas Instruments LDO, 3.3V Fixed, 250mA","metaDescription":"Texas Instruments TPS79433DGNR LDO, 3.3V fixed output, 250mA, 200mV dropout, PSRR 65dB-40dB (100Hz-100kHz), -40°C to 125°C, active production, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"PSRR":"65dB ~ 40dB (100Hz ~ 100kHz)","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width) Exposed Pad","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"250mA","Protection Features":"Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO)","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C","Voltage - Input (Max)":"5.5V","Voltage Dropout (Max)":"0.2V @ 250mA","Supplier Device Package":"8-HVSSOP","Current - Quiescent (Iq)":"220 µA","Voltage - Output (Min/Fixed)":"3.3V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.24","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.24000","currency":"USD"},{"qty":10,"price":"$2.01400","currency":"USD"},{"qty":25,"price":"$1.90000","currency":"USD"},{"qty":100,"price":"$1.61880","currency":"USD"},{"qty":250,"price":"$1.52004","currency":"USD"},{"qty":500,"price":"$1.33004","currency":"USD"},{"qty":1000,"price":"$1.10203","currency":"USD"},{"qty":2500,"price":"$1.07550","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/aa39a6bca3fc69b8020badff989a7df5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is TPS79433DGNR's listed PSRR?","answer":"PSRR is 65 dB at 100 Hz, decreasing to 40 dB at 100 kHz. This means the LDO attenuates low-frequency ripple well but passes higher-frequency switching noise unless additional filtering is used ahead of the input."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS79433DGNR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS79433DGNR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}