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Details
| Topologie | Sonstige Topologie |
| Eingangsspannung | 2.25-5.5 V |
| Schaltfrequenz | 3000 kHz |
Beschreibung
The LTC®3315A features dual 2A monolithic synchronousstep-down converters operating from a 2.25V to5.5V input supply in one package for space-constrainedapplications with demanding performance requirements.Using constant frequency, peak current mode control atswitching frequencies up to 3MHz with a minimum ontimeas low as 25ns, both bucks achieve high efficiencyand fast transient response in a very small applicationfootprint.
Eigenschaften
- Dual Outputs Each with 2A Output Current
- High Efficiency: 19mΩ NMOS and 75mΩ PMOS
- Wide Bandwidth, Fast Transient Response
- Switching Frequency Synchronizable Up to 3MHz
- VIN Range: 2.25V to 5.5V
- VOUT Range: 0.5V to VIN
- VOUT Accuracy: ±1%
- Low Ripple Burst Mode® Operation
- Peak Current Mode Control
- Minimum On-Time: 25ns
- Safely Tolerates Inductor Saturation in Overload
- Shutdown Current: 1.2μA
- Precision 400mV Enable Thresholds
- Internal Soft-Start and Compensation
- Power Good Output
- Low Profile, Thermally Enhanced 12-Lead 2mm × 2mm × 0.74mm LQFN Package
Typische Anwendungen
- Distributed DC Power Systems (POL)
- Industrial/Automotive/Communications
- FPGA, ASIC, μP Core Supplies
- Servers, Telecom Supplies, Optical Networking
Weiterführende Informationen
Artikeldaten
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | L(µH) | IR(A) | ISAT1(A) | ISAT2(A) | RDC max.(mΩ) | fres(MHz) | IRP,40K(A) | ISAT,30%(A) | RDC typ.(mΩ) | VOP(V) | Montageart | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-PMCI Power Molded Chip Induktivität, 0.25 µH, 9.05 A | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-PMCI Power Molded Chip Induktivität | Induktivität0.25 µH | Nennstrom9.05 A | Sättigungsstrom 18.5 A | Sättigungsstrom 215.65 A | Gleichstromwiderstand31 mΩ | Eigenresonanzfrequenz150 MHz | Performance Nennstrom9.05 A | Sättigungsstrom @ 30%15.65 A | Gleichstromwiderstand26 mΩ | – | MontageartSMT | ||||
 | WE-MAPI SMT-Speicherdrossel, 1.5 µH, 3.7 A | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-MAPI SMT-Speicherdrossel | Induktivität1.5 µH | Nennstrom3.7 A | – | – | Gleichstromwiderstand39 mΩ | Eigenresonanzfrequenz51 MHz | Performance Nennstrom5.35 A | Sättigungsstrom @ 30%5.85 A | Gleichstromwiderstand33 mΩ | Betriebsspannung80 V | MontageartSMT |