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Analog Devices LTC3311S | Demoboard DC3018A
3.3V to 1.2V at 12.5A, 2MHz Low EMI Buck Regulator in a 1.17cm2 Solution
Details
| Topologie | Abwärtswandler |
| Eingangsspannung | 2.25-5.5 V |
| Schaltfrequenz | 1800-2200 kHz |
| Ausgang 1 | 1.22 V / 12.5 A |
Beschreibung
Demonstration Circuit 3018A features the LTC®3311S 12.5A, low voltage, synchronous step-down Silent Switcher® 2 operating as a 2MHz 3.3V to 1.2V 12.5A buck regulator. The LTC3311S supports output voltages from 0.5V to VIN with operating frequencies from 500kHz up to 5MHz. The LTC3311S is a compact, ultralow emission, high efficiency, and high speed synchronous monolithic step-down switching regulator. The integrated bypass capacitors optimize all the fast current loops and make it easier to minimize EMI/EMC emissions by reducing layout sensitivity. Fast minimum on-time of 35ns enables high VIN to low VOUT conversion at high frequency.
Weiterführende Informationen
Artikeldaten
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | C | Tol. C | VR(V (DC)) | Bauform | DF(%) | RISO | Keramiktyp | B(mm) | Fl(mm) | Verpackung | Z @ 100 MHz(Ω) | Zmax(Ω) | Testbedingung Zmax | IR(mA) | Z @ 1 GHz(Ω) | H(mm) | Typ | Pins | Montageart | L(mm) | Arbeitsspannung(V (AC)) | Betriebstemperatur | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WCAP-CSGP MLCCs 25 V(DC), 33 nF, ±10% | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWCAP-CSGP MLCCs 25 V(DC) | Kapazität33 nF | Kapazität±10% | Nennspannung25 V (DC) | Bauform0402 | Verlustfaktor3.5 % | Isolationswiderstand10 GΩ | KeramiktypX7R Klasse II | Breite0.5 mm | Pad Dimension0.25 mm | Verpackung7" Tape & Reel | – | – | – | – | – | Höhe0.5 mm | – | – | – | Länge1 mm | – | Betriebstemperatur -55 °C up to +125 °C | |||||
 | WE-MPSB EMI Multilayer Power Suppression Bead, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-MPSB EMI Multilayer Power Suppression Bead | – | – | – | Bauform1812 | – | – | – | Breite3.2 mm | Pad Dimension0.46 mm | – | Impedanz @ 100 MHz100 Ω | Maximale Impedanz160 Ω | Maximale Impedanz1100 MHz | Nennstrom8000 mA | Impedanz @ 1 GHz150 Ω | Höhe2.3 mm | TypHochstrom | – | MontageartSMT | Länge4.5 mm | – | Betriebstemperatur -55 °C up to +125 °C | ||||
 | WR-PHD Kurzschlussbrücken, –, – | Simulation– | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWR-PHD Kurzschlussbrücken | – | – | – | – | – | Isolationswiderstand1000 MΩ | – | – | – | VerpackungBeutel | – | – | – | Nennstrom3000 mA | – | – | – | Pins2 | – | – | Arbeitsspannung200 V (AC) | Betriebstemperatur -25 °C up to +105 °C | |||
 | WR-PHD Stiftleisten, –, – | Simulation– | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWR-PHD Stiftleisten | – | – | – | – | – | Isolationswiderstand1000 MΩ | – | – | – | VerpackungBeutel | – | – | – | Nennstrom2000 mA | – | – | TypGerade | Pins3 | MontageartTHT | Länge6 mm | Arbeitsspannung200 V (AC) | Betriebstemperatur -40 °C up to +105 °C |