{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ADM7155ARDZ-02-R7","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"ADM7155ARDZ-02-R7","canonicalUrl":"https://icboms.com/analog-devices/ADM7155ARDZ-02-R7","factsUrl":"https://icboms.com/api/mcp/products/ADM7155ARDZ-02-R7","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices ADM7155ARDZ-02-R7, adjustable positive LDO regulator, 600 mA output, 1.2 V to 2.4 V range, 94 dB ~ 61 dB PSRR (1 kHz ~ 1 MHz), 0.21 V max dropout, -40°C to 125°C, 8-SOIC-EP.","salesMarkdown":"## Low-noise LDO for sensitive analog and RF rails The Analog Devices ADM7155ARDZ-02-R7 is a 600 mA adjustable positive LDO regulator designed for applications where power-supply rejection matters across a wide frequency band. Its PSRR holds 94 dB at 1 kHz and still delivers 61 dB at 1 MHz, which makes it a natural fit for cleaning up the supply to a VCO, PLL, or high-speed ADC where switching-regulator ripple at MHz frequencies would otherwise couple into the signal path. The output adjusts from 1.2 V to 2.4 V via external resistors, covering the core and I/O voltages of many FPGAs, SoCs, and data converters. ## Dropout and headroom planning Maximum dropout is 210 mV at the full 600 mA load. That means a 3.3 V input rail needs only 3.51 V to hold regulation, so this part tolerates a 5% sag on a 3.6 V bus without dropping out. For a 2.5 V output fed from a 3.3 V rail, the headroom is generous — the 800 mV delta leaves margin for the regulator's own overhead and the 10 mA maximum supply current. ## Package and thermal considerations Housed in an 8-SOIC with exposed pad (8-SOIC-EP, 0.154\" body width), the thermal pad must be soldered to a PCB copper plane to dissipate heat from the 600 mA output. ## Protection and control features Built-in over-current and over-temperature protection cover the common fault cases: a shorted output or an ambient spike past 125°C. The enable pin allows the regulator to be sequenced or shut down by a system supervisor or GPIO. Quiescent current runs 7 mA typical, which is higher than a micropower LDO but expected for a part optimized for noise and PSRR rather than standby efficiency.","metaTitle":"ADM7155ARDZ-02-R7 LDO Regulator, 600mA, Adjustable 1.2-2.4V","metaDescription":"ADI ADM7155ARDZ-02-R7 adjustable LDO, 600mA output, 94dB PSRR at 1kHz, dropout 0.21V max. -40 to 125°C, 8-SOIC-EP. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"PSRR":"94dB ~ 61dB (1kHz ~ 1MHz)","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width) Exposed Pad","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"600mA","Protection Features":"Over Current, Over Temperature","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C","Voltage - Input (Max)":"5.5V","Voltage Dropout (Max)":"0.21V @ 600mA","Current - Supply (Max)":"10 mA","Voltage - Output (Max)":"2.4V","Supplier Device Package":"8-SOIC-EP","Current - Quiescent (Iq)":"7 mA","Voltage - Output (Min/Fixed)":"1.2V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.4","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.60000","currency":"USD"},{"qty":1000,"price":"$4.62000","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/ADM7155.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What are equivalent parts to ADM7155ARDZ-02-R7?","answer":"The closest functional equivalents are the ADM7154 fixed-output variants (ADM7154ACPZ-1.2-R7 for 1.2 V, ADM7154ACPZ-1.8-R7 for 1.8 V) which share the same die, package, and 600 mA rating but offer a fixed output voltage rather than adjustable. The ADM7151ARDZ-04-R7 is a higher-voltage (16 V input) adjustable LDO with similar PSRR but in a different input voltage class."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/ADM7155ARDZ-02-R7","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/ADM7155ARDZ-02-R7 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}}