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Details
| Topologie | Aufwärtswandler |
| Eingangsspannung | 4.5-20 V |
| Schaltfrequenz | 300-2000 kHz |
| Ausgang 1 | 24 V / 1.2 A |
Beschreibung
The LT®8364 is a current mode DC/DC converter with a 60V, 4A switch operating from a 2.8V to 60V input. With a unique single feedback pin architecture it is capable of boost, SEPIC or inverting configurations. Burst Mode operation consumes as low as 9µA quiescent current to maintain high efficiency at very low output currents, while keeping typical output ripple below 15mV. An external compensation pin allows optimization of loop bandwidth over a wide range of input and output voltages and programmable switching frequencies between 300kHz and 2MHz. A SYNC/MODE pin allows synchronization to an external clock. It can also be used to select between burst or pulse-skip modes of operation with or without Spread Spectrum Frequency Modulation for low EMI. For increased efficiency, a BIAS pin can accept a second input to supply the INTVCC regulator. Additional features include frequency foldback and programmable soft-start to control inductor current during startup. The LT8364 is available in a thermally enhanced 12-lead 4mm × 3mm DFN package or a thermally enhanced 16-lead MSOP package with four pins removed.
Eigenschaften
- Wide Input Voltage Range: 2.8V to 60V
- Ultralow Quiescent Current and Low Ripple Burst Mode® Operation: IQ = 9µA
- 4A, 60V Power Switch
- Positive or Negative Output Voltage Programming with a Single Feedback Pin
- Programmable Frequency (300kHz to 2MHz)
- Synchronizable to an External Clock
- Spread Spectrum Frequency Modulation for Low EMI
- BIAS Pin for Higher Efficiency
- Programmable Undervoltage Lockout (UVLO)
- Thermally Enhanced 12-lead 4mm × 3mm DFN and 16-lead MSOP packages
Typische Anwendungen
- Telecom
- Portable Electronics
- Medical Diagnostic Equipment
- Industrial and Automotive
Weiterführende Informationen
Artikeldaten
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | L(µH) | ISAT1(A) | ISAT2(A) | fres(MHz) | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | Z @ 100 MHz(Ω) | Zmax(Ω) | Testbedingung Zmax | IR 2(mA) | RDC max.(mΩ) | Typ | Pins | Montageart | L(mm) | H(mm) | IR(A) | Arbeitsspannung(V (AC)) | Betriebstemperatur | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-PMCI Power Molded Chip Induktivität, 0.47 µH, 5.15 A | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-PMCI Power Molded Chip Induktivität | Induktivität0.47 µH | Sättigungsstrom 15.15 A | Sättigungsstrom 29.95 A | Eigenresonanzfrequenz90 MHz | Performance Nennstrom7.1 A | Sättigungsstrom 15.15 A | Sättigungsstrom @ 30%9.95 A | – | – | – | Nennstrom 23600 mA | Gleichstromwiderstand22 mΩ | – | Pins2 | MontageartSMT | Länge3.2 mm | Höhe1.2 mm | Nennstrom7.1 A | – | Betriebstemperatur -40 °C up to +125 °C | ||||
 | WE-LHMI SMT Speicherdrossel, 2.2 µH, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-LHMI SMT Speicherdrossel | Induktivität2.2 µH | – | – | Eigenresonanzfrequenz49 MHz | Performance Nennstrom4.05 A | Sättigungsstrom 14.45 A | Sättigungsstrom @ 30%8.4 A | – | – | – | – | Gleichstromwiderstand61 mΩ | – | Pins2 | MontageartSMT | Länge4.45 mm | Höhe1.8 mm | – | – | Betriebstemperatur -40 °C up to +125 °C | ||||
 | WE-CBF SMT-Ferrit, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-CBF SMT-Ferrit | – | – | – | – | – | – | – | Impedanz @ 100 MHz600 Ω | Maximale Impedanz700 Ω | Maximale Impedanz150 MHz | Nennstrom 22000 mA | Gleichstromwiderstand150 mΩ | TypHochstrom | – | MontageartSMT | Länge2 mm | Höhe0.0009 mm | Nennstrom1.5 A | – | Betriebstemperatur -55 °C up to +125 °C | ||||
 | WR-PHD Stiftleisten, –, – | Simulation– | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWR-PHD Stiftleisten | – | – | – | – | – | – | – | – | – | – | – | – | TypGerade | Pins10 | MontageartTHT | Länge10 mm | – | Nennstrom2 A | Arbeitsspannung200 V (AC) | Betriebstemperatur -40 °C up to +105 °C | |||
 | WR-PHD Kurzschlussbrücken, –, – | Simulation– | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWR-PHD Kurzschlussbrücken | – | – | – | – | – | – | – | – | – | – | – | – | – | Pins2 | – | – | – | Nennstrom3 A | Arbeitsspannung200 V (AC) | Betriebstemperatur -25 °C up to +105 °C |