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reference designLT80605 | Demoboard EVAL-LT80605

Analog Devices LT80605 | Demoboard EVAL-LT80605

LT80605 in 5V Output-Voltage Application

Overview

TopologyBuck Converter
Input voltage24 V
Output 15 V / 5.5 A
IC revisionSpB

Description

The LT80605EVKIT# (EV kit) is a proven 5V design to evaluate the LT80605 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 LT80605 is a compact, ultralow EMI emission, high efficiency, high speed synchronous monolithic step-down switching regulator that consumes only 9μA of quiescent current when the output is regulated at 5V. Top and bottom power switches, compensation components, and other necessary circuits inside the LT80605 minimize external components and simplify design.The application circuit demonstrated in the evaluation board is suitable for a wide range of automotive, telecom, industrial, and other applications.The LT80605 data sheet gives a complete description of the part, operation, and application information. Consult the data sheet in conjunction with this demo manual. Design files for this circuit board are available at www.analog.com.

Features

ilent Switcher® Architecture, Ultralow EMI EmissionsInput Voltage Range up to 65V400kHz Switching FrequencyHigh 93% Efficiency (VIN = 24V, IOUT = 5.5A)9μA IQ Regulating 24VIN to 5VOUTOn-the-Fly Mode Change Between Burst, Pulse Skip, and FCM99% Duty-Cycle Operation0.75μA Shutdown CurrentBias Bootstrap Input for Improved EfficiencyBurst and Pulse Skipping Modes to Enable Enhanced Light-Load EfficiencyProgrammable Soft-Start and TrackingBuilt-in Output-Voltage Monitoring and DieTemperature Monitoring with PG/TJOvertemperature and Overcurrent ProtectionExternal Clock Synchronization.Proven PCB LayoutFully Assembled and TestedComplies with CISPR 25 Conducted and Radiated Emissions

Typical applications

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Data­sheet
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Z @ 100 MHz(Ω)
Zmax(Ω)
IR(A)
RDC(mΩ)
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78279221281
SPECWE-MPSA EMI Multilayer Power Suppression Bead, 280 Ω, 288 Ω
Availability
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-MPSA EMI Multilayer Power Suppression Bead
Impedance @ 100 MHz280 Ω
Maximum Impedance288 Ω
Rated Current3.5 A
DC Resistance35 mΩ
TypeHigh Current 
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