IC-Hersteller Analog Devices

IC-Hersteller (103)

Analog Devices LT7101

105V, 1A Low EMI Synchronous Step-Down Regulator with Fast Current Programming

Details

TopologieAbwärtswandler
Eingangsspannung5-100 V
Schaltfrequenz200-2000 kHz
Ausgang 15 V / 1 A

Beschreibung

The LT®7101 is a high efficiency, monolithic synchronousstep-down DC/DC converter utilizing a constantfrequency, average current mode control architecture. Itoperates from an input voltage range of 4.4V to 105V andprovides an adjustable regulated output voltage fro

Eigenschaften

  • Wide VIN Range: 4.4V to 105V (110V Abs Max)
  • Ultralow EMI/EMC Emissions: CISPR 25 Compliant
  • 2μA IQ When Regulating 48VIN to 3.3VOUT
  • Fast and Accurate Output Current Programming and Monitoring with No External RSENSE
  • Brick Wall Current Limit
  • Low Minimum On-Time: 35ns
  • Wide VOUT Range: 1V to VIN
  • 100% Maximum Duty Cycle Operation
  • Programmable Fixed Frequency: 200kHz to 2MHz
  • Eight, Pin-Selectable Fixed (1.2V to 15V) or Adjustable Output Voltages
  • Selectable Continuous, Pulse-Skipping, or Low Ripple Burst Mode® Operation at Light Loads
  • PLL Synchronization to External Clock
  • EXTVCC LDO Powers Chip from VOUT = 3.3V to 40V
  • OPTI-LOOP® or Fixed Internal Compensation
  • Input and Output Overvoltage Protection
  • Thermally Enhanced (5mm × 6mm) QFN Package

Typische Anwendungen

  • Automotive and Military Systems
  • Telecommunication Systems
  • Industrial, Avionics and Heavy Equipment
  • Medical Instruments
  • Battery Chargers and CC/CV Supplies

Weiterführende Informationen

Artikeldaten

Artikel Nr.
Daten­blatt
Simu­lation
Downloads
Status
Produktserie
L(µH)
ISAT(A)
RDC max.(mΩ)
fres(MHz)
Bauform
Version
MusterVerfügbarkeit & Muster
SPECWE-PD SMT-Speicherdrossel, 47 µH, 2.5 A
Simu­lation
Verfügbarkeit
Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.
Induktivität47 µH
Sättigungsstrom2.5 A
Gleichstromwiderstand99 mΩ
Eigenresonanzfrequenz8.8 MHz
Bauform1050 
VersionPerformance 
Verfügbarkeit prüfen