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

ADM7170 ndi CMOS, low dropout linear regulator (LDO) yomwe imagwira ntchito kuchokera ku 2.3 V mpaka 6.5 V ndipo imapereka mpaka 500 mA ya zotulutsa zamakono. Kutulutsa kwamakono kwa LDO ndikwabwino pakuwongolera magwiridwe antchito apamwamba a analogi ndi ma frequency osakanikirana omwe amagwira ntchito kuchokera ku 6 V mpaka njanji ya 1.2 V. Pogwiritsa ntchito zomangamanga zapamwamba, chipangizochi chimapereka kukana kwamagetsi apamwamba komanso phokoso lochepa, ndipo chimakwaniritsa mzere wabwino kwambiri ndikuyankha kwakanthawi kochepa ndi kachipangizo kakang'ono ka 4.7 µF ceramic output capacitor. Kuyankha kwakanthawi kochepa kumakhala 1.5 μs kwa 1 mA
mpaka 500 mA sitepe yolemetsa.

ADM7170 imapezeka muzosankha 17 zokhazikika zotulutsa magetsi. Ma voltages otsatirawa amapezeka kuchokera kuzinthu: 1.3 V, 1.8 V, 2.5 V, 3.0 V, 3.3 V, 4.2 V, ndi 5.0 V. Zowonjezera zowonjezera zomwe zilipo mwa dongosolo lapadera ndi: 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. 3.8 V, ndi 4.6 V. Mtundu wosinthika umapezekanso womwe umalola kuti magetsi atuluke omwe amachokera ku 1.2 V kupita ku VIN - VDO ndi chogawaniza chakunja.

Inrush current ikhoza kuwongoleredwa posintha nthawi yoyambira kudzera pa pini yoyambira yofewa. Nthawi yoyambira yoyambira yokhala ndi 1 nF soft start capacitor ndi pafupifupi 1.0 ms.

Phokoso la ADM7170 regulator ndi 5 μV rms osadalira mphamvu yamagetsi. ADM7170 imapezeka mu 8-lead, 3 mm × 3 mm LFCSP, yomwe imapangitsa kuti ikhale yosakanikirana kwambiri, komanso imapereka ntchito yabwino kwambiri yotentha kwa mapulogalamu omwe amafunikira mpaka 500 mA ya zomwe zimachokera pakalipano pang'onopang'ono, zotsika kwambiri.