Semtech

SC2440A

Dual 30V Step-Down Switching Regulator with 2A Switches

Topologie: Buck
Eingangsspannung (min.): 20.00 V
Eingangsspannung (max.): 28.00 V
Ausgang 1: 3.30 V / 1.800 A
Ausgang 2: 5.00 V / 1.800 A

Erstveröffentlichung am 27.02.2014, Version 2.4

Beschreibung

(a) Synchronized 600kHz 24V to 5V and 3.3V Dual Step-down Converter.The free-running frequency of the regulator is set to 580kHz.(b) Efficiency(c) Switching Waveforms. VIN = 24V, IOUT1 = IOUT2 = 1A.(d) Start-up Waveforms. VIN = 24V, IOUT1 = IOUT2 = 0.5A.

Merkmale

  • Wide Input Voltage Range: 2.8V to 30VTwo Integrated 2A SwitchesUp to 2.5MHz per Channel Programmable ConstantSwitching FrequencyOut of Phase Switching Reduces Input RippleBoth Switching Regulators share a single Input FilteringCapacitor, Reducing CostExternal SynchronizationCycle-by-Cycle Current-limitingIndependent Soft-Start/Enable PinsIndependent Hiccup Overload ProtectionPower Good Indicators Ease Output SequencingLow Shutdown CurrentThermally Enhanced 16-pin TSSOP Lead Free PackageFully WEEE and RoHS Compliant

Artikel

  Artikel Nr. SPEC Produktserie L
(µH)
IR
(A)
ISAT
(A)
RDC typ.
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
Bauform Version Muster
744777910 PDF WE-PD SMT-Speicherdrossel 10 2 2.6 45 49 26 7345 Robust
7447779112 PDF WE-PD SMT-Speicherdrossel 12 1.82 2.4 50 58 23 7345 Robust