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Details
| Topologie | SEPIC Buck-Boost Topologie |
| Eingangsspannung | 5-48 V |
| Schaltfrequenz | 300-2000 kHz |
| Ausgang 1 | 24 V / 0.61 A |
Beschreibung
The LT®8361 is a current mode DC/DC converter with a100V, 2A switch operating from a 2.8V to 60V input. Witha unique single feedback pin architecture it is capable ofboost, SEPIC or inverting configurations. Burst Modeoperation consumes as low as 9µA quiescent current tomaintain high efficiency at very low output currents, whilekeeping typical output ripple below 15mV.An external compensation pin allows optimization of loopbandwidth over a wide range of input and output voltagesand programmable switching frequencies between 300kHzand 2MHz. A SYNC/MODE pin allows synchronization toan external clock. It can also be used to select betweenburst or pulse-skip modes of operation with or withoutSpread Spectrum Frequency Modulation for low EMI.For increased efficiency, a BIAS pin can accept a secondinput to supply the INTVCC regulator. Additional featuresinclude frequency foldback and programmable soft-startto control inductor current during startup.The LT8361 is available in a thermally enhanced 16-leadMSOP package with four pins removed for high voltagepin spacings.
Eigenschaften
- Wide Input Voltage Range: 2.8V to 60V
- Ultralow Quiescent Current and Low Ripple Burst Mode® Operation: IQ = 9µA
- 2A, 100V 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 16-lead MSOP packages
Typische Anwendungen
- Medical Diagnostic Equipment
- Portable Electronics
- Telecom
- Industrial and Automotive
Weiterführende Informationen
Artikeldaten
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | Z @ 100 MHz(Ω) | Zmax(Ω) | Testbedingung Zmax | IR 2(mA) | RDC max.(Ω) | Typ | L1(µH) | L2(µH) | IR 1(mA) | ISAT 1(A) | RDC1 typ(Ω) | RDC2 typ(Ω) | RDC1 max(Ω) | RDC2 max(Ω) | fres(MHz) | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-CBF SMT-Ferrit, 600 Ω, 700 Ω | 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 | Gleichstromwiderstand0.15 Ω | TypHochstrom | Induktivität 152000000 µH | – | Nennstrom 11500 mA | – | – | – | – | – | – | ||||
 | WE-DD SMT-Doppeldrossel, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-DD SMT-Doppeldrossel | – | – | – | Nennstrom 2800 mA | Gleichstromwiderstand0.26 Ω | TypGerade | Induktivität 122 µH | Induktivität 222 µH | Nennstrom 1800 mA | Sättigungsstrom [1]1.8 A | Gleichstromwiderstand 10.215 Ω | Gleichstromwiderstand 20.215 Ω | Gleichstromwiderstand 10.26 Ω | Gleichstromwiderstand 20.26 Ω | Eigenresonanzfrequenz16 MHz |