{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS70451PWP","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS70451PWP","canonicalUrl":"https://icboms.com/texas-instruments/TPS70451PWP","factsUrl":"https://icboms.com/api/mcp/products/TPS70451PWP","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS70451PWP dual-output LDO regulator, fixed 3.3V and 1.8V outputs, 1A and 2A current, 24-TSSOP exposed pad, surface mount.","salesMarkdown":"## Dual-rail LDO with fixed 3.3V and 1.8V outputs The Texas Instruments TPS70451PWP is a dual-output linear regulator that delivers fixed 3.3V on channel one and 1.8V on channel two, with a combined output current capability of 1A and 2A respectively. PSRR is 65 dB at 1 kHz on the 1A channel and 60 dB at 1 kHz on the 2A channel — this is the rejection ratio for ripple coming from a switching preregulator. If your 5V rail has 100 mV p-p of 1 kHz switching noise, the 3.3V output will see roughly 56 µV p-p on the 1A rail and 100 µV p-p on the 2A rail. Dropout voltage is 250 mV max at 1A, so the input rail needs at least 3.55V to keep the 3.3V output in regulation under full load. ## Protection and control features for a clean start-up The TPS70451PWP includes Enable, Power Good, Reset, and Sequencing control pins — these let you sequence the two rails on power-up and monitor them during operation. Protection covers Over Current, Over Temperature, Reverse Polarity, and Under Voltage Lockout (UVLO).","metaTitle":"Texas Instruments TPS70451PWP dual LDO, 3.3V/1.8V, 1A/2A","metaDescription":"Texas Instruments TPS70451PWP dual-output LDO, fixed 3.3V and 1.8V, 1A and 2A outputs, 65dB PSRR at 1kHz, active production, ROHS3 compliant. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"PSRR":"65dB (1kHz), 60dB (1kHz)","Package":"Tube","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"24-TSSOP (0.173\\\", 4.40mm Width) Exposed Pad","lifecycle_stage":"eol_hot","Control Features":"Enable, Power Good, Reset, Sequencing","Current - Output":"1A, 2A","Protection Features":"Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO)","Number of Regulators":"2","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C","Voltage - Input (Max)":"6V","Voltage Dropout (Max)":"0.25V @ 1A, -","Supplier Device Package":"24-HTSSOP","Current - Quiescent (Iq)":"250 µA","Voltage - Output (Min/Fixed)":"3.3V, 1.8V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.83","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$7.83000","currency":"USD"},{"qty":10,"price":"$7.06900","currency":"USD"},{"qty":25,"price":"$6.74080","currency":"USD"},{"qty":100,"price":"$5.85290","currency":"USD"},{"qty":250,"price":"$5.58980","currency":"USD"},{"qty":500,"price":"$5.09658","currency":"USD"},{"qty":1000,"price":"$4.65300","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/eca219fcbf03b8d9cfddd99dba6e5091.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I order TPS70451PWP or check stock?","answer":"The TPS70451PWP is an active Texas Instruments part."},{"question":"What is the PSRR of TPS70451PWP?","answer":"PSRR is 65 dB at 1 kHz on the 1A output and 60 dB at 1 kHz on the 2A output, giving good rejection of switching-regulator ripple on noise-sensitive analog rails."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS70451PWP","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS70451PWP 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}}