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Analog Devices LTC3639 | Demoboard DC3017A-A
High Efficiency, 150V 100mA Synchronous Step-Down Regulator
Details
| Topologie | LAN / POE |
| Eingangsspannung | 55 V |
| Ausgang 1 | 57 V / 0.6 A |
| Ausgang 2 | 57 V / 1.92 A |
| Ausgang 3 | 57 V / 0.35 A |
| Ausgang 4 | 57 V / 1.2 A |
| IC-Revision | 03 |
Beschreibung
The LTC®3639 is a high efficiency step-down DC/DC regulator with internal high side and synchronous power switches that draws only 12μA typical DC supply current while maintaining a regulated output voltage at no load. The LTC3639 can supply up to 100mA load current and features a programmable peak current limit that provides a simple method for optimizing efficiency and for reducing output ripple and component size. The LTC3639’s combination of Burst Mode® operation, integrated power switches, low quiescent current, and programmable peak current limit provides high efficiency over a broad range of load currents. With its wide input range of 4V to 150V and programmable overvoltage lockout, the LTC3639 is a robust regulator suited for regulating from a wide variety of power sources. Additionally, the LTC3639 includes a precise run threshold and soft-start feature to guarantee that the power system start-up is well-controlled in any environment. The LTC3639 is available in a thermally enhanced high voltage-capable 16-lead MSE package with four missing pins.
Eigenschaften
- Wide Operating Input Voltage Range: 4V to 150V
- Synchronous Operation for Highest Efficiency
- Internal High Side and Low Side Power MOSFETs
- No Compensation Required
- Adjustable 10mA to 100mA Maximum Output Current
- Low Dropout Operation: 100% Duty Cycle
- Low Quiescent Current: 12µA
- Wide Output Range: 0.8V to VIN
- 0.8V ±1% Feedback Voltage Reference
- Precise RUN Pin Threshold
- Internal or External Soft-Start
- Programmable 1.8V, 3.3V, 5V or Adjustable Output
- Few External Components Required
- Programmable Input Overvoltage Lockout
- Thermally Enhanced High Voltage MSOP Package
Typische Anwendungen
- Industrial Control Supplies
- Automotive
- Medical Devices
- Distributed Power Systems
- Battery-Operated Devices
- Avionics
Weiterführende Informationen
Artikeldaten
| Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | f (mm) | λDom typ. (nm) | Farbe | λPeak typ. (nm) | IV typ. (mcd) | VF typ. (V) | Chiptechnologie | 2θ50% typ. (°) | Datenrate | Ports | PoE | Improved CMRR | Betriebstemperatur | VT (V (RMS)) | Montageart | L (µH) | Pins (pcs) | Reihen | H (mm) | Gender | Typ | IR (A) | Verpackung | Raster (mm) | Version | L (mm) | Arbeitsspannung (V (AC)) | Kontaktwiderstand (mΩ) | Tol. R | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 61202021721 | SPEC | – | 6 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WR-BHD 2.54 mm Male Angled Box Header | – | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +105 °C | – | THT | – | 20 | – | – | Männlich | Angled | 3 | Tray | 2.54 | Low Profile | 33.06 | 250 | 20 | max. | |
 | 702937000 | SPEC | – | 3 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WA-SNSR Self-Retaining Spacer | 4.8 | – | – | – | – | – | – | – | – | – | – | – | -30 °C up to +85 °C | – | – | – | – | – | – | – | – | – | – | – | – | 19.1 | – | – | – | |
 | 62000311121 | SPEC | – | 6 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WR-PHD 2.00 mm THT Pin Header | – | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +105 °C | – | THT | – | 3 | Single | – | Pin Header | Gerade | 2 | Beutel | 2 | – | 6 | 200 | 20 | max. | |
 | 7490220122 | SPEC | 8 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WE-LAN LAN Übertrager | – | – | – | – | – | – | – | – | 10/100/1000BASE-T | 1 | 4PPoE (bis zu 1000 mA) | Nein | -40 °C up to +105 °C | 1500 | SMT | 350 | 24 | – | 98.8 | – | 4PPoE (to 900 mA) | – | – | 1.27 | SMT | 17.55 | – | – | – | ||
 | 155060BS75300 | SPEC Anstehende PCNAufgrund einer anstehenden PCN wird in Kürze eine Änderung am Bauteil durchgeführt. Anbei finden Sie die entsprechende PCN. Bei weiteren Fragen wenden Sie sich bitte an Ihren Vertriebsmitarbeiter. | 7 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WL-SMSW SMT Mono-color Side View Waterclear | – | 470 | Blau | 465 | 145 | 3.2 | InGaN | 140 | – | – | – | – | -40 °C up to +85 °C | – | SMT | – | – | – | 0.8 | – | – | – | – | – | – | 1.6 | – | – | – |
| Artikel Nr. | Datenblatt | Simulation | |
|---|---|---|---|
| 61202021721 | SPEC | – |
| 702937000 | SPEC | – |
| 62000311121 | SPEC | – |
| 7490220122 | SPEC | |
| 155060BS75300 | SPEC Anstehende PCNAufgrund einer anstehenden PCN wird in Kürze eine Änderung am Bauteil durchgeführt. Anbei finden Sie die entsprechende PCN. Bei weiteren Fragen wenden Sie sich bitte an Ihren Vertriebsmitarbeiter. |
| Muster |
|---|
| Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | f (mm) | λDom typ. (nm) | Farbe | λPeak typ. (nm) | IV typ. (mcd) | VF typ. (V) | Chiptechnologie | 2θ50% typ. (°) | Datenrate | Ports | PoE | Improved CMRR | Betriebstemperatur | VT (V (RMS)) | Montageart | L (µH) | Pins (pcs) | Reihen | H (mm) | Gender | Typ | IR (A) | Verpackung | Raster (mm) | Version | L (mm) | Arbeitsspannung (V (AC)) | Kontaktwiderstand (mΩ) | Tol. R | Muster |
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