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ReferenzdesignLT80603 | Demoboard LT80603EV Kit

Analog Devices LT80603 | Demoboard LT80603EV Kit

3V to 65V, 2.5A/3.5A/4.5A Synchronous Step-Down Silent Switcher with 8μA Quiescent Current

Details

TopologieAbwärtswandler
Eingangsspannung3-65 V
Schaltfrequenz200-3000 kHz
Ausgang 13.3 V / 3.5 A
Ausgang 25 V / 3.5 A

Beschreibung

The LT80603EVKIT# (EV kit) is a proven 5V design to evaluate the LT80603 synchronous step-down Silent Switcher®. The EV kit is designed for a 5V output. The wide input range up to 65V allows a variety of input sources, such as automotive batteries and industrial supplies. The LT80603 is a compact, ultralow electromagnetic interference (EMI) emission, highefficiency, high-speed synchronous monolithic step-down switching regulator that consumes only 8μA of quiescent current when the output is regulated at 5V. The top and bottom power switches, compensation components, and other necessary circuits within the LT80603 minimize the need for external components and simplify the design. The EV kit can also evaluate the LT80602, LT80603A, LT80603HV, LT80602HV, and LT80603AHV. Refer to the IC datasheet guidelines when modifying the schematic to achieve optimal performance.

Eigenschaften

Silent Switcher Architecture, Ultralow EMI Emissions

  • Input Voltage Range up to 65V
  • 400kHz Switching Frequency
  • High 92.6% Efficiency (VIN = 24V, IOUT = 3.5A)
  • 8μA IQ Regulating 24VIN to 5VOUT
  • On-the-Fly Mode Change Among Burst Mode,Pulse-Skipping Mode (PSM), and Forced ContinuousMode (FCM)
  • 99% Duty-Cycle Operation
  • 0.75µA Shutdown Current
  • Bias Bootstrap Input for Improved Efficiency
  • Burst and Pulse Skipping Modes to Enable EnhancedLight-Load Efficiency
  • Programmable Soft-Start and Tracking
  • Built-in Output-Voltage Monitoring and DieTemperature Monitoring with PG/TJ
  • Overtemperature and Overcurrent Protection
  • External Clock Synchronization
  • Proven PCB Layout
  • Fully Assembled and Tested
  • Complies with CISPR 25 Class 5 Conducted andRadiated Emissions

Weiterführende Informationen

Artikeldaten

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Z @ 100 MHz(Ω)
Zmax(Ω)
IR(A)
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78279221281
SPECWE-MPSA EMI Multilayer Power Suppression Bead, 280 Ω, 288 Ω
Verfügbarkeit
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Downloads9 Dateien

Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.
ProduktserieWE-MPSA EMI Multilayer Power Suppression Bead
Impedanz @ 100 MHz280 Ω
Maximale Impedanz288 Ω
Nennstrom3.5 A
Gleichstromwiderstand35 mΩ
TypHochstrom 
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