IC-Hersteller Analog Devices

IC-Hersteller (99)

Analog Devices LTC3639 | Demoboard DC3017A-A

High Efficiency, 150V 100mA Synchronous Step-Down Regulator

Details

TopologieLAN / POE
Eingangsspannung55 V
Ausgang 157 V / 0.6 A
Ausgang 257 V / 1.92 A
Ausgang 357 V / 0.35 A
Ausgang 457 V / 1.2 A
IC-Revision03

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 Produktserief
(mm)
λDom typ.
(nm)
FarbeλPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chiptechnologie50% typ.
(°)
DatenratePortsPoEImproved CMRRBetriebstemperaturVT
(V (RMS))
MontageartL
(µH)
Pins (Value)
(pcs)
ReihenH
(mm)
GenderTypIR
(A)
VerpackungRaster
(mm)
L
(mm)
Arbeitsspannung
(V (AC))
Kontaktwiderstand
(mΩ)
Tol. R Muster
61202021721SPEC
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 33.06 250 20 max.
702937000SPEC
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
62000311121SPEC
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.
7490220122SPEC
9 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 17.55
155060BS75300SPEC
6 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
Muster
Artikel Nr. Daten­blatt Simu­lation Downloads Status Produktserief
(mm)
λDom typ.
(nm)
FarbeλPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chiptechnologie50% typ.
(°)
DatenratePortsPoEImproved CMRRBetriebstemperaturVT
(V (RMS))
MontageartL
(µH)
Pins (Value)
(pcs)
ReihenH
(mm)
GenderTypIR
(A)
VerpackungRaster
(mm)
L
(mm)
Arbeitsspannung
(V (AC))
Kontaktwiderstand
(mΩ)
Tol. R Muster