{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS70148PWP","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS70148PWP","canonicalUrl":"https://icboms.com/texas-instruments/TPS70148PWP","factsUrl":"https://icboms.com/api/mcp/products/TPS70148PWP","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS70148PWP dual LDO regulator, fixed 3.3V/1.5V outputs, 500mA/250mA, 60dB PSRR at 1kHz, 20-HTSSOP package, -40°C to 125°C.","salesMarkdown":"## Dual fixed-output LDO with sequenced power-up The TPS70148PWP from Texas Instruments integrates two positive-output LDO regulators in a single 20-pin HTSSOP package, delivering fixed 3.3V at 500mA and 1.5V at 250mA from a maximum 6V input rail. The dual-channel architecture with enable, power-good, reset, and sequencing control features makes it suited for powering split-rail ASICs, FPGAs, or DSPs that require a defined power-up order between the core and I/O supplies. ## PSRR and noise rejection at 1 kHz With 60dB PSRR at 1kHz, the regulator attenuates switching noise from a downstream DC-DC converter by a factor of 1000 — critical for keeping the analog supply rail clean in mixed-signal designs where the converter ripple falls in the audio or low-frequency band. The 190 µA quiescent current and 230 µA maximum supply current keep the overhead low for always-on rails in battery-powered instrumentation. ## Industrial temperature range and package thermal management The 0.28V maximum dropout at 500mA on the 3.3V rail means the input must stay above 3.58V to maintain regulation at full load — a 5V rail with 10% tolerance (4.5V min) provides sufficient headroom. ## Protection and control feature set Built-in overcurrent, overtemperature, reverse polarity, and undervoltage lockout (UVLO) protection cover the common fault modes in a single-supply system — the UVLO threshold prevents the output from turning on until the input rail is stable, eliminating the need for an external supervisor on the input. The sequencing control allows the 1.5V core rail to ramp after the 3.3V I/O rail with a programmable delay, matching the power-up sequence required by many FPGA and processor datasheets. ## Active lifecycle and compliance status Fully RoHS3 compliant and free of the six restricted substances plus the four phthalates — no exemption declarations needed for EU-market equipment shipping after July 2019.","metaTitle":"TPS70148PWP Texas Instruments Dual LDO, 3.3V/1.5V","metaDescription":"Texas Instruments TPS70148PWP dual-output LDO regulator, fixed 3.3V/1.5V outputs, 500mA/250mA, 60dB PSRR at 1kHz, industrial temp range. Active, RoHS3","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"PSRR":"60dB (1kHz)","Package":"Tube","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"20-PowerTSSOP (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Control Features":"Enable, Power Good, Reset, Sequencing","Current - Output":"500mA, 250mA","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)":"0.28V @ 500mA, -","Current - Supply (Max)":"230 µA","Supplier Device Package":"20-HTSSOP","Current - Quiescent (Iq)":"190 µA","Voltage - Output (Min/Fixed)":"3.3V, 1.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.96","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.96000","currency":"USD"},{"qty":10,"price":"$6.24600","currency":"USD"},{"qty":25,"price":"$5.90520","currency":"USD"},{"qty":100,"price":"$5.11790","currency":"USD"},{"qty":250,"price":"$4.85544","currency":"USD"},{"qty":500,"price":"$4.35676","currency":"USD"},{"qty":1000,"price":"$3.71400","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a0c8ca301b9cc83958089a8b5458bd27.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the PSRR of the TPS70148PWP and why does it matter?","answer":"The TPS70148PWP delivers 60dB PSRR at 1kHz, attenuating upstream switching noise by 1000× at that frequency. For a mixed-signal board where a 1 MHz buck converter produces ripple that folds down to 1 kHz through the regulator's control loop, this rejection keeps the analog supply clean enough for 12-bit ADC performance without additional post-filtering."},{"question":"What compliance documentation does Texas Instruments provide for the TPS70148PWP?","answer":"Texas Instruments provides RoHS3 compliance certification (EU 2015/863) for the TPS70148PWP. The device is also REACH-compliant per the current SVHC list. No UL or IEC certification is listed in the available documentation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS70148PWP","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS70148PWP 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}}