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reference designLTC3374A

Analog Devices LTC3374A

High Accuracy 8-Channel Parallelable 1A Buck DC/DCs

Overview

TopologyBuck Converter
Input voltage2.25-5.5 V
Switching frequency1000-3000 kHz
Output 15.5 V / 1 A
IC revisionA

Description

The LTC®3374A is a multioutput power supply IC consistingof eight synchronous 1A buck converters, all powered fromindependent 2.25V to 5.5V input supplies. An upgradedpin-compatible version of the LTC3374, the LTC3374A,has higher efficiency, improved output voltage accuracyand an added overvoltage (OV) indicator.

Features

8-Channel 1A Independent Step-Down DC/DCsMaster-Slave Configurable for Up to 4A of Output Current with a Single InductorIndependent VIN Supplies for Each DC/DC (2.25V to 5.5V)All DC/DCs Have 0.8V to VIN Output Range±1% VFB Accuracy, for Buck 1 (1A to 4A)±1% PGOOD AccuracyPrecision Enable Pin Thresholds for Autonomous Sequencing1MHz to 3MHz Programmable/Synchronizable Oscillator Frequency (2MHz Default)Die Temperature Monitor OutputThermally Enhanced 38-Lead 5mm × 7mm QFN and TSSOP PackagesPin-Compatible with LTC3374

Typical applications

  • Industrial/Automotive/Communications
  • General Purpose Multichannel Power Supplies

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,30%(A)
RDC typ.(mΩ)
fres(MHz)
VOP(V)
ISAT(A)
RDC max.(mΩ)
Material
Version
ISAT,10%(A)
RDC(mΩ)
Qty.
Pins
Type
Mount
L(mm)
H(mm)
IR(A)
Working Voltage(V (AC))
Operating Temperature
SamplesAvailability & Sample
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744383560033
SPECWE-MAPI SMT Power Inductor, 0.33 µH, 14.95 A

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

Simu­lation
Availability
–
Downloads10 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-MAPI SMT Power Inductor
Inductance0.33 µH
Performance Rated Current14.95 A
Saturation Current @ 30%16.7 A
DC Resistance6 mΩ
Self Resonant Frequency115 MHz
Operating Voltage80 V
Saturation Current12.4 A
DC Resistance7.2 mΩ
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VersionSMT 
Saturation Current @ 10%7.95 A
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Packaging Unit1000 
Pins2 
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MountSMT 
Length4 mm
Height2 mm
Rated Current9.6 A
–
Operating Temperature -40 °C up to +125 °C
–Check availability
744383360068
SPECWE-MAPI SMT Power Inductor, 0.68 µH, 6.75 A
Simu­lation
Availability
–
Downloads10 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-MAPI SMT Power Inductor
Inductance0.68 µH
Performance Rated Current6.75 A
Saturation Current @ 30%8.1 A
DC Resistance22 mΩ
Self Resonant Frequency85 MHz
Operating Voltage80 V
Saturation Current6.2 A
DC Resistance27 mΩ
–
VersionSMT 
Saturation Current @ 10%4.1 A
–
Packaging Unit1000 
Pins2 
–
MountSMT 
Length3 mm
Height2 mm
Rated Current4.5 A
–
Operating Temperature -40 °C up to +125 °C
–Check availability
744383560068
SPECWE-MAPI SMT Power Inductor, 0.68 µH, 13.15 A

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

Simu­lation
Availability
–
Downloads10 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-MAPI SMT Power Inductor
Inductance0.68 µH
Performance Rated Current13.15 A
Saturation Current @ 30%12.7 A
DC Resistance7.5 mΩ
Self Resonant Frequency75 MHz
Operating Voltage80 V
Saturation Current9.4 A
DC Resistance9 mΩ
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VersionSMT 
Saturation Current @ 10%5.8 A
–
Packaging Unit1000 
Pins2 
–
MountSMT 
Length4 mm
Height2 mm
Rated Current8.2 A
–
Operating Temperature -40 °C up to +125 °C
–Check availability
744316100
SPECWE-HCI SMT Flat Wire High Current Inductor, 1 µH, 14.8 A
Simu­lation
Availability
–
Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
Inductance1 µH
Performance Rated Current14.8 A
Saturation Current @ 30%11.5 A
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Self Resonant Frequency158 MHz
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DC Resistance5.225 mΩ
MaterialSuperflux 
VersionSMT 
Saturation Current @ 10%5.5 A
DC Resistance4.75 mΩ
Packaging Unit1500 
Pins2 
–
MountSMT 
Length5.5 mm
Height4 mm
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–
Operating Temperature -40 °C up to +150 °C
–Check availability
74438336015
SPECWE-MAPI SMT Power Inductor, 1.5 µH, 5.35 A
Simu­lation
Availability
–
Downloads10 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-MAPI SMT Power Inductor
Inductance1.5 µH
Performance Rated Current5.35 A
Saturation Current @ 30%5.85 A
DC Resistance33 mΩ
Self Resonant Frequency51 MHz
Operating Voltage80 V
Saturation Current4.5 A
DC Resistance39 mΩ
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VersionSMT 
Saturation Current @ 10%2.95 A
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Packaging Unit1000 
Pins2 
–
MountSMT 
Length3 mm
Height2 mm
Rated Current3.7 A
–
Operating Temperature -40 °C up to +125 °C
–Check availability
74438356022
SPECWE-MAPI SMT Power Inductor, 2.2 µH, 6.2 A

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

Simu­lation
Availability
–
Downloads10 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-MAPI SMT Power Inductor
Inductance2.2 µH
Performance Rated Current6.2 A
Saturation Current @ 30%7.9 A
DC Resistance29 mΩ
Self Resonant Frequency34 MHz
Operating Voltage80 V
Saturation Current6.2 A
DC Resistance35 mΩ
–
VersionSMT 
Saturation Current @ 10%4.05 A
–
Packaging Unit1000 
Pins2 
–
MountSMT 
Length4 mm
Height2 mm
Rated Current4.7 A
–
Operating Temperature -40 °C up to +125 °C
–Check availability
74408943047
SPECWE-SPC SMT Power Inductor, 4.7 µH, –
Simu­lation
Availability
–
Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-SPC SMT Power Inductor
Inductance4.7 µH
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–
DC Resistance45 mΩ
Self Resonant Frequency44 MHz
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Saturation Current3.2 A
DC Resistance52 mΩ
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VersionSMT 
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–
Packaging Unit500 
Pins2 
–
MountSMT 
Length4.8 mm
Height3.8 mm
Rated Current2.2 A
–
Operating Temperature -40 °C up to +125 °C
–Check availability
60800213421
SPECWR-PHD Jumper, –, –
Simu­lation–
Availability
–
Downloads3 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Jumper
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Packaging Unit1000 
Pins2 
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–
–
–
Rated Current3 A
Working Voltage200 V (AC)
Operating Temperature -25 °C up to +105 °C
–Check availability
62000311121
SPECWR-PHD Pin Header, –, –
Simu­lation–
Availability
–
Downloads7 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header
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Packaging Unit1000 
Pins3 
TypeStraight 
MountTHT 
Length6 mm
–
Rated Current2 A
Working Voltage200 V (AC)
Operating Temperature -40 °C up to +105 °C
–Check availability