IC-Hersteller Analog Devices

IC-Hersteller (96)

Analog Devices LT8638-2

42V, 10A/12A Peak Synchronous Step-Down Silent Switcher

Details

TopologieAbwärtswandler
Eingangsspannung2.8-42 V
Schaltfrequenz200-3000 kHz
Ausgang 15 V / 10 A

Beschreibung

The LT®8638-2 synchronous step-down regulator features the Silent Switcher® architecture designed to minimize EMI emissions while delivering high efficiency at high switching frequencies. This performance makes the LT8638-2 ideal for noise sensitive applications and environments.

Eigenschaften

Silent Switcher® ArchitectureUltralow EMI EmissionsOptional Spread Spectrum ModulationHigh Efficiency at High FrequencyUp to 96% Efficiency at 1MHz, 12VIN to 5VOUTUp to 94% Efficiency at 2MHz, 12VIN to 5VOUTWide Input Voltage Range: 2.8V to 42V10A Maximum Continuous, 12A Peak Transient OutputFast Transient Response with External CompensationLow Quiescent Current Burst Mode® Operation90μA IQ Regulating 12VIN to 5VOUTOutput Ripple < 10mVP-PReference Accuracy: ±1% Over TemperatureFast Minimum Switch On-Time: 25nsPolyPhase® Operation: Up to 12 PhasesLow Dropout Under All Conditions: 45mV at 1AAdjustable and Synchronizable: 200kHz to 3MHzOutput Soft-Start and Power GoodSafely Tolerates High Reverse Current28-Lead 5mm × 4mm LQFN PackageAEC-Q100 Qualified for Automotive Applications

Typische Anwendungen

  • Standard step-down converter
  • Standard step-down converter

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieZ @ 100 MHz
(Ω)
Zmax
(Ω)
Testbedingung ZmaxIR
(mA)
Z @ 1 GHz
(Ω)
H
(mm)
Typ Muster
74279221100SPEC
8 Dateien WE-MPSB EMI Multilayer Power Suppression Bead 10 41 2178 MHz 10500 28 1.1 High Current
Artikel Nr. Daten­blatt Simu­lation
74279221100SPEC
Muster
Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieZ @ 100 MHz
(Ω)
Zmax
(Ω)
Testbedingung ZmaxIR
(mA)
Z @ 1 GHz
(Ω)
H
(mm)
Typ Muster