ADM7170ACPZ-3.3 LDO Voltage Regulators 0.5A Hi PSRR FT LDO 3.3Vo

I-ADM7170 iyi-CMOS, i-low dropout linear regulator (LDO) esebenza kusukela ku-2.3 V kuya ku-6.5 V futhi inikeza kufika ku-500 mA okukhiphayo okwamanje. Le LDO yamanje ekhiphayo ephezulu ilungele ukulawula ukusebenza okuphezulu kwe-analog namasekhethi esignali axubile asebenza ukusuka ku-6 V kwehle kuya ku-1.2 V ojantshi. Isebenzisa i-architecture yobunikazi ethuthukisiwe, idivayisi ihlinzeka ngokunqatshelwa kokunikezwa kwamandla aphezulu nomsindo ophansi, futhi ifinyelela ulayini omuhle kakhulu nokulayisha impendulo yesikhashana nge-capacitor encane engu-4.7 µF ye-ceramic output. Ukulayisha impendulo yesikhashana ngokuvamile ingu-1.5 μs ku-1 mA
kuya ku-500 mA isinyathelo sokulayisha.

I-ADM7170 itholakala ngezinketho zamandla kagesi ezingaguquki eziyi-17. Ama-voltage alandelayo atholakala esitokisini: 1.3 V, 1.8 V, 2.5 V, 3.0 V, 3.3 V, 4.2 V, no-5.0 V. Ama-voltage engeziwe atholakala nge-oda elikhethekile yilawa: 1.5 V, 1.85 V, 2.0 V, 2.2 V, 2.5 V, 2.8 V, 2.8 V, 2.8 V, 2.8 3.8 V, kanye no-4.6 V. Inguqulo elungisekayo iyatholakala futhi evumela ama-voltage okukhiphayo asukela ku-1.2 V kuya ku-VIN - VDO enesihlukanisi sangaphandle.

I-Inrush current ingalawulwa ngokulungisa isikhathi sokuqalisa ngephinikhodi yokuqala ethambile. Isikhathi esivamile sokuqalisa nge-1 nF soft start capacitor cishe singu-1.0 ms.

Umsindo wokukhipha isilawuli se-ADM7170 ungama-5 μV rms azimele ku-voltage ophumayo. I-ADM7170 itholakala ku-8-lead, 3 mm × 3 mm LFCSP, okwenza kungabi kuphela isisombululo esihlangene kakhulu, kodwa futhi inikeza ukusebenza okuhle kakhulu okushisayo kwezinhlelo zokusebenza ezidinga kufika ku-500 mA wokukhipha okwamanje endaweni encane, ephansi yephrofayili.