{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX603CSA+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX603CSA~3T","canonicalUrl":"https://icboms.com/analog-devices/MAX603CSA~3T","factsUrl":"https://icboms.com/api/mcp/products/MAX603CSA%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX603CSA+T LDO voltage regulator, 500 mA output, adjustable (fixed 5 V option), 8-SOIC surface-mount, 35 µA quiescent current, overcurrent and reverse polarity protection.","salesMarkdown":"## Headline ratings and the headroom they demand The MAX603CSA+T: Rated for 500 mA continuous output, this LDO delivers enough current for a small microcontroller, a wireless module, or a sensor cluster. Quiescent current is 35 µA typical — low enough that the regulator's own draw does not dominate a battery-powered design's sleep budget. A device that spends most of its time in a low-power state and wakes briefly to transmit or log data will see the regulator's Iq as a minor fraction of the total drain. The output is adjustable from 1.25 V up to 11 V using an external resistor divider, with a fixed 5 V option available by tying the SET pin to ground. The 11.5 V maximum input voltage limits the usable input to a 12 V rail with margin — a 12 V supply at its tolerance high end (say 12.6 V) exceeds the abs-max and needs a pre-regulator or a different part. ## Protection set and temperature grade On-chip protection covers overcurrent, overtemperature, and reverse polarity on the input. The reverse-polarity clamp means the part survives a miswired battery connection without external Schottky diodes — useful in benchtop or field-service scenarios where the power leads get swapped. An industrial or automotive environment with ambient temperatures below freezing or above 70°C calls for the extended-temperature version of the same die. Housed in the standard 8-SOIC package (3.90 mm body width), the MAX603CSA+T uses a footprint shared across hundreds of LDOs and op-amps. The SOIC-8 land pattern is well-documented; the centre paddle is not an exposed pad, so thermal dissipation relies on the copper area on the PCB connected to the GND pins.","metaTitle":"MAX603CSA+T LDO, 500 mA, Adjustable Output, 8-SOIC","metaDescription":"Analog Devices MAX603CSA+T LDO regulator, 500 mA output, adjustable 1.25 V to 11 V, 35 µA quiescent current, 8-SOIC. Active product, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Adjustable (Fixed)","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"500mA","Protection Features":"Over Current, Over Temperature, Reverse Polarity","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"0°C ~ 70°C","Voltage - Input (Max)":"11.5V","Voltage Dropout (Max)":"0.55V @ 500mA","Voltage - Output (Max)":"11V","Supplier Device Package":"8-SOIC","Current - Quiescent (Iq)":"35 µA","Voltage - Output (Min/Fixed)":"1.25V (5V)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.31","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.31000","currency":"USD"},{"qty":10,"price":"$5.66400","currency":"USD"},{"qty":25,"price":"$5.35480","currency":"USD"},{"qty":100,"price":"$4.64100","currency":"USD"},{"qty":250,"price":"$4.40300","currency":"USD"},{"qty":500,"price":"$3.95078","currency":"USD"},{"qty":1000,"price":"$3.56998","currency":"USD"},{"qty":2500,"price":"$3.56998","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/7825ac6d703d277e8ee2f7cc31b38730.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What protection features does the MAX603CSA+T include?","answer":"It includes overcurrent protection, overtemperature shutdown, and reverse-polarity protection on the input. These are integrated on-chip and require no external components."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX603CSA~3T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX603CSA~3T 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}}