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Analog Devices LTC3114-1
40V, 1A Synchronous Buck-Boost DC/DC Converter with Programmable Output Current
Details
| Topologie | Abwärts- und Aufwärtswandler |
| Eingangsspannung | 2.2-40 V |
| Schaltfrequenz | 1200 kHz |
| Ausgang 1 | 40 V / 1 A |
| IC-Revision | A |
Beschreibung
The LTC®3114-1 is a versatile, wide operating voltage rangesynchronous monolithic buck-boost DC/DC converter withprogrammable average output current. The LTC3114-1’sproprietary buck-boost PWM control circuitry delivers lownoise operation across the entire operating voltage range.Current mode control ensures exceptional line and loadtransient responses.Synchronous, internal MOSFET switches and pin selectableBurst Mode operation maintain high efficiency acrossthe entire range of load current. Average output currentis programmed with a standard resistor and provides thebasis for wide input range, high efficiency charging systemsor constant current, high efficiency LED drive. Regulatorturn-on is programmable through the accurate RUN pin.Quiescent current is just 3μA in shutdown. Overtemperatureprotection, short-circuit protection and soft-start areintegrated. The LTC3114-1 is offered in 16-lead 3mm ×5mm × 0.75mm DFN and 16 lead TSSOP (FE) packages.
Eigenschaften
- Regulates VOUT Above, Below or Equal to VIN
- Single Inductor
- Wide VIN Range: 2.2V to 40V
- Wide VOUT Range: 2.7V to 40V
- 1A Output Current in Buck Mode
- 0.5A Output Current, VIN = 3.6V, VOUT = 5V
- Programmable Average Output Current
- Up to 96% Efficiency
- Burst Mode® Operation, 30μA No-Load IQ
- Current Mode Control
- 1.2MHz Ultralow Noise PWM
- Accurate RUN Pin Threshold
- Thermally Enhanced, 16-lead 3mm × 5mm DFNand TSSOP Packages
Typische Anwendungen
- 12V/24V Solar Panel Battery Charging Systems
- 24V/28V Industrial Power Supply
- 12V Lead-Acid to 12V Regulator
- High Power LED Driver
- Automotive Power Systems
Weiterführende Informationen
Artikeldaten
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | L(µH) | IR(A) | ISAT(A) | fres(MHz) | Montageart | IRP,40K(A) | RDC max.(mΩ) | Bauform | Version | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-PD SMT-Speicherdrossel, 4.7 µH, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-PD SMT-Speicherdrossel | Induktivität4.7 µH | – | – | Eigenresonanzfrequenz45 MHz | MontageartSMT | Performance Nennstrom4.2 A | Gleichstromwiderstand35 mΩ | Bauform7332 | VersionRobust | ||||
 | WE-TPC SMT-Speicherdrossel, 6.8 µH, 4.2 A | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-TPC SMT-Speicherdrossel | Induktivität6.8 µH | Nennstrom4.2 A | Sättigungsstrom3.6 A | Eigenresonanzfrequenz30 MHz | MontageartSMT | – | Gleichstromwiderstand33 mΩ | Bauform1028 | VersionSMT | ||||
 | WE-TPC SMT-Speicherdrossel, 15 µH, 3 A | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-TPC SMT-Speicherdrossel | Induktivität15 µH | Nennstrom3 A | Sättigungsstrom3.25 A | Eigenresonanzfrequenz16 MHz | MontageartSMT | – | Gleichstromwiderstand50 mΩ | Bauform1038 | VersionSMT | ||||
| WE-PD SMT-Speicherdrossel, 33 µH, 2.8 A | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-PD SMT-Speicherdrossel | Induktivität33 µH | Nennstrom2.8 A | Sättigungsstrom3 A | Eigenresonanzfrequenz11 MHz | MontageartSMT | Performance Nennstrom4.6 A | Gleichstromwiderstand57 mΩ | Bauform1260 | VersionGestanzt |