{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TCR2EE42,LM(CT","brand":"Toshiba Semiconductor","brandSlug":"toshiba","productSlug":"TCR2EE42LMCT","canonicalUrl":"https://icboms.com/toshiba/TCR2EE42LMCT","factsUrl":"https://icboms.com/api/mcp/products/TCR2EE42%2CLM(CT","rawCanonicalId":null},"summary":{"shortDescription":"Toshiba TCR2EE42,LM(CT, TCR2EE series, linear voltage regulator, fixed 4.2 V output, 200 mA, 73 dB PSRR (1 kHz), 200 mV dropout at 150 mA, SOT-553, -40°C to 85°C.","salesMarkdown":"## 4.2 V fixed LDO in SOT-553 — the noise-sensitive rail choice The Toshiba TCR2EE42,LM(CT is a single-output positive fixed LDO regulator delivering 4.2 V at up to 200 mA from a SOT-553 package. Its 73 dB PSRR at 1 kHz makes it a candidate for powering analog or RF sections where supply ripple rejection matters, not just a generic digital rail. ## Dropout and headroom at 150 mA Maximum dropout is 200 mV at 150 mA, so a 4.4 V input keeps the output in regulation at that load. With a 5.5 V absolute maximum input, the part tolerates a 5 V rail with margin. The 60 µA quiescent current is moderate — not micro-power, but acceptable for always-on blocks in industrial or telecom gear where the load current dominates the power budget. ## Temperature grade and environment The SOT-553 footprint is compact — about 1.6 mm × 1.6 mm — which helps on dense PCBs but limits thermal dissipation; at 200 mA continuous with 1 V drop, the junction rise is roughly 60°C above ambient in still air, so the 85°C ambient cap is real. Enable control lets the system shut down the rail for standby savings. ## Sourcing and lifecycle Listed as Active, so no last-time-buy pressure for production builds. The TCR2EE series is current. Note RoHS non-compliance — verify your assembly line's exemption allowance or plan for a lead-free alternative.","metaTitle":"Toshiba TCR2EE42,LM(CT LDO Regulator, 4.2 V Fixed, 200 mA","metaDescription":"Toshiba TCR2EE42,LM(CT linear regulator: 4.2 V fixed output, 200 mA, 73 dB PSRR at 1 kHz, 200 mV dropout at 150 mA, SOT-553, -40°C to 85°C.","metaKeywords":null},"attributes":{"series":"TCR2EE","packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"PSRR":"73dB (1kHz)","Series":"TCR2EE","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"SOT-553","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"200mA","Protection Features":"Over Current","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 85°C","Voltage - Input (Max)":"5.5V","Voltage Dropout (Max)":"0.2V @ 150mA","Supplier Device Package":"ESV","Current - Quiescent (Iq)":"60 µA","Voltage - Output (Min/Fixed)":"4.2V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.36","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.36000","currency":"USD"},{"qty":10,"price":"$0.26700","currency":"USD"},{"qty":25,"price":"$0.23320","currency":"USD"},{"qty":100,"price":"$0.15100","currency":"USD"},{"qty":250,"price":"$0.12500","currency":"USD"},{"qty":500,"price":"$0.10000","currency":"USD"},{"qty":1000,"price":"$0.07666","currency":"USD"},{"qty":4000,"price":"$0.06666","currency":"USD"},{"qty":8000,"price":"$0.05999","currency":"USD"},{"qty":12000,"price":"$0.05333","currency":"USD"},{"qty":28000,"price":"$0.05000","currency":"USD"},{"qty":100000,"price":"$0.04333","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/faa30e48a3eb6710f6ae76d6bc73d487.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What are the equivalents for TCR2EE42?","answer":"The TCR2EE185,LM(CT is the same series and package but outputs 1.85 V. The TCR3DF28,LM(CT outputs 2.8 V at 300 mA with similar PSRR. Neither is a direct pin-compatible substitute for the 4.2 V version — the output voltage is fixed and non-adjustable, so the only equivalent is another TCR2EE42,LM(CT."},{"question":"What is the PSRR of TCR2EE42?","answer":"PSRR is 73 dB at 1 kHz, which is strong for a small LDO and suitable for cleaning up switching-regulator ripple on sensitive analog rails."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/toshiba/TCR2EE42LMCT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/toshiba/TCR2EE42LMCT 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}}