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reference designLT8350S | Demoboard EVAL-LT8350S-AZ

Analog Devices LT8350S | Demoboard EVAL-LT8350S-AZ

LT8350S 40VIN, 18VOUT, 6A Synchronous Buck-Boost Silent Switcher 2

Overview

TopologyBuck-Boost Converter
Input voltage3-40 V
Output 112 V / 2.5 A

Description

The EVAL-LT8350S-AZ Evaluation board is a 40V synchronous buck-boost converter featuring the LT®8350S. It drives up to 2.5A load at 12V output when VIN is between 9V and 40V and will run down to 3VIN with reduced output current. EVAL-LT8350S-AZ runs at 350kHz switching frequency with spread spectrum frequency modulation (SSFM) disabled. When enabled, SSFM spreads the switching frequency of the LT8350S from fSW to fSW + 25% for a reduced electromagnetic interference (EMI) emission.

Features

  • 3V–40V Operating Input Voltage
  • Reduced EMI emissions for CISPR 25 Class 5
  • Spread Spectrum Frequency Modulation
  • Input and Output EMI filter
  • In-built Input and Output high-frequency capacitors
  • Adjustable UVLO, VOUT, fSW, Output Current and Limit
  • Voltage-Monitoring (PGOOD) and Current-Monitoring(ISMON)
  • Configurable SYNC pin for Forced Continuous Mode(FCM), Discontinuous Conduction Mode (DCM),SSFM, and external Frequency Synchronization
  • Feed Forward Function for improved transient response

Typical applications

  • USB Power Delivery (USB-PD) Source
  • Industrial Systems, Voltage Regulator with Accurate Current Limit
  • High-Frequency Battery-Powered System
  • Automotive Systems
  • Telecom Systems

More information

Products

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702935000
SPECWA-SNSR Self-Retaining Spacer, 4.8 mm, –
Availability
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Downloads3 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWA-SNSR Self-Retaining Spacer
Drilling in Panel4.8 mm
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–
–
Length12.7 mm
–
–
Operating Temperature -30 °C up to +85 °C
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60800213421
SPECWR-PHD Jumper, –, 2
Availability
–
Downloads3 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Jumper
–
Pins2 
–
–
–
Rated Current3 A
Working Voltage200 V (AC)
Operating Temperature -25 °C up to +105 °C
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62000311121
SPECWR-PHD Pin Header, –, 3
Availability
–
Downloads7 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header
–
Pins3 
TypeStraight 
MountTHT 
Length6 mm
Rated Current2 A
Working Voltage200 V (AC)
Operating Temperature -40 °C up to +105 °C
–Check availability
62000821121
SPECWR-PHD Pin Header, –, 8
Availability
–
Downloads7 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header
–
Pins8 
TypeStraight 
MountTHT 
Length8 mm
Rated Current2 A
Working Voltage200 V (AC)
Operating Temperature -40 °C up to +105 °C
–Check availability