IC manufacturers Analog Devices

IC manufacturers (99)

Analog Devices LT8362 | Demoboard 60V and 100V, Low IQ Boost/SEPIC/ Inverting

Overview

TopologyPositive to Negative Converter
Input voltage4.5-42 V
Switching frequency273-2150 kHz
Output 1-12 V

Description

Released On LT Journal April 2018The LT®8362 is a current mode DC/DC converter with a60V, 2A switch operating from a 2.8V to 60V input. Witha unique single feedback pin architecture it is capable ofboost, SEPIC or inverting configurations. Burst Modeoperation consumes as low as 9μA quiescent current tomaintain high efficiency at very low output currents, whilekeeping typical output ripple below 15mV.An external compensation pin allows optimization of loopbandwidth over a wide range of input and output voltagesand programmable switching frequencies between 300kHzand 2MHz. A SYNC/MODE pin allows synchronization toan external clock. It can also be used to select betweenburst or pulse-skip modes of operation with or withoutSpread Spectrum Frequency Modulation for low EMI.For increased efficiency, a BIAS pin can accept a secondinput to supply the INTVCC regulator. Additional featuresinclude frequency foldback and programmable soft-startto control inductor current during startup.The LT8362 is available in a thermally enhanced 10-lead3mm × 3mm DFN package or a thermally enhanced 16-leadMSOP package with four pins removed.

Features

  • Wide Input Voltage Range: 2.8V to 60V
  • Ultralow Quiescent Current and Low Ripple Burst Mode® Operation: IQ = 9μA
  • 2A, 60V Power Switch
  • Positive or Negative Output Voltage Programming with a Single Feedback Pin
  • Programmable Frequency (300kHz to 2MHz)
  • Synchronizable to an External Clock
  • Spread Spectrum Frequency Modulation for Low EMI
  • BIAS Pin for Higher Efficiency
  • Programmable Undervoltage Lockout (UVLO)
  • Thermally Enhanced 10-lead 3mm × 3mm DFN and16-lead MSOP packages

Typical applications

  • Medical Diagnostic Equipment
  • Telecom
  • Portable Electronics
  • Industrial and Automotive

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesZ @ 100 MHz
(Ω)
Zmax
(Ω)
Test Condition ZmaxIR 2
(mA)
RDC max.
(Ω)
TypeL1
(µH)
L2
(µH)
nIR
(mA)
IR
(mA)
ISAT
(A)
ISAT1
(A)
ISAT2
(A)
RDC1 typ
(mΩ)
RDC2 typ
(mΩ)
RDC1 max
(mΩ)
RDC2 max
(mΩ)
fres 1
(MHz)
Samples
742792040SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WE-CBF SMT EMI Suppression Ferrite Bead 600 700 150 MHz 2000 0.15 High Current 52000000 2000 1500
74489430068SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WE-TDC SMT Shielded Coupled Inductor 1250 0.146 6.8 6.8 1:1 1250 2 2 2 128 128 146 146 46
Order Code Data­sheet Simu­lation
742792040SPEC
74489430068SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesZ @ 100 MHz
(Ω)
Zmax
(Ω)
Test Condition ZmaxIR 2
(mA)
RDC max.
(Ω)
TypeL1
(µH)
L2
(µH)
nIR
(mA)
IR
(mA)
ISAT
(A)
ISAT1
(A)
ISAT2
(A)
RDC1 typ
(mΩ)
RDC2 typ
(mΩ)
RDC1 max
(mΩ)
RDC2 max
(mΩ)
fres 1
(MHz)
Samples