IC manufacturers Analog Devices

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Analog Devices LT8362

Low IQ Boost/SEPIC/Inverting Converter with 2A, 60V Switch

Overview

TopologyBoost Converter
Input voltage2.8-60 V
Switching frequency300-2000 kHz
Output 124 V / 0.7 A
IC revisionB

Description

The LT8362 is a current mode DC/DC converter with a 60V, 2A switch operating from a 2.8V to 60V input. With a unique single feedback pin architecture it is capable of boost, SEPIC or inverting configurations. Burst Mode operation consumes as low as 9µA quiescent current to maintain high efficiency at very low output currents, while keeping typical output ripple below 15mV.An external compensation pin allows optimization of loop bandwidth over a wide range of input and output voltages and programmable switching frequencies between 300kHz and 2MHz. A SYNC/MODE pin allows synchronization to an external clock. It can also be used to select between burst or pulse-skip modes of operation with or without Spread Spectrum Frequency Modulation for low EMI. For increased efficiency, a BIAS pin can accept a second input to supply the INTVCC regulator. Additional features include frequency foldback and programmable soft-start to control inductor current during startup.The LT8362 is available in a thermally enhanced 10-lead 3mm × 3mm DFN package or a thermally enhanced 16-lead MSOP 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 n Programmable Undervoltage Lockout (UVLO)
  • Thermally Enhanced 10-lead 3mm × 3mm DFN and 16-lead MSOP packages

Typical applications

  • Telecom
  • Portable electronics
  • Medical diagnostic equipment
  • Industrial and automotive

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesCTol. CVR
(V (DC))
SizeOperating TemperatureDF
(%)
RISOCeramic TypeL
(mm)
W
(mm)
H
(mm)
Fl
(mm)
PackagingL1
(µH)
L2
(µH)
nIR
(A)
IR 2
(A)
ISAT
(A)
ISAT1
(A)
ISAT2
(A)
RDC1 typ
(mΩ)
RDC2 typ
(mΩ)
RDC1 max
(mΩ)
RDC2 max
(mΩ)
fres 1
(MHz)
Samples
885012207061SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 25 V(DC)1.5 nF ±10% 25 0805 -55 °C up to +125 °C 3.510 GΩ X7R Class II 2 1.25 0.8 0.5 7" Tape & Reel
885012206073SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 25 V(DC)220 nF ±10% 25 0603 -55 °C up to +125 °C 3.52.3 GΩ X7R Class II 1.6 0.8 0.8 0.4 7" Tape & Reel
74489430068SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WE-TDC SMT Shielded Coupled Inductor 80 8018 -40 °C up to +125 °C 8 8 1.8 6.8 6.8 1:1 1.25 1.25 2 2 2 128 128 146 146 46
Order Code Data­sheet Simu­lation
885012207061SPEC
885012206073SPEC
74489430068SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesCTol. CVR
(V (DC))
SizeOperating TemperatureDF
(%)
RISOCeramic TypeL
(mm)
W
(mm)
H
(mm)
Fl
(mm)
PackagingL1
(µH)
L2
(µH)
nIR
(A)
IR 2
(A)
ISAT
(A)
ISAT1
(A)
ISAT2
(A)
RDC1 typ
(mΩ)
RDC2 typ
(mΩ)
RDC1 max
(mΩ)
RDC2 max
(mΩ)
fres 1
(MHz)
Samples