IC manufacturers Analog Devices

IC manufacturers (103)

Analog Devices LTC3376

20V, 4-Channel Buck DC/DC with 8x Configurable 1.5A Power Stages

Overview

TopologyBuck Converter
Input voltage3-20 V
Switching frequency1000-3000 kHz
Output 13.3 V / 3 A
Output 22.5 V / 3 A
Output 31.8 V / 3 A
Output 45 V / 3 A

Description

The LTC®3376 is a highly flexible multioutput power supply IC. The device includes four synchronous buck converters, configured to share eight 1.5A power stages, powered from independent 3V to 20V inputs. The DC/DCs are assigned to one of fifteen power configurations via pin strappable CFG0 to CFG3 pins. The LTC3376 includes the integration of ceramic capacitors into the package for the BST pins thereby saving PCB space. The common buck switching frequency may be programmed with an external resistor, synchronized to an external oscillator, or set to a default internal 2MHz clock.

Features

  • Wide VIN Range: 3V to 20V
  • Wide VOUT Range: 0.4V to 0.83 - VIN
    1. 1.5A Buck Power Stages Configurable as 1 to 4 Output Channels
  • 15 Unique Pin Selectable Output Configurations (1.5A to 12A per Channel)
  • Internal Boost Capacitors for Reduced PCB Space
  • No Load IQ 27μA 1 Buck Enabled; 42μA All Bucks Enabled
  • 1% VOUT Accuracy on All Channels
  • Peak Current Mode Control (Burst Mode® Operation/Forced Continuous)
  • Precision RUN Inputs, Individual PGOOD Outputs for Power Sequencing
  • 1MHz to 3MHz Frequency (RT Programmable, PLL SYNC, or Internal 2MHz Oscillator)
  • TEMP Pin Output Indicates Die Temperature
  • Output Current Monitors
  • Differential Output Sense

Typical applications

  • Telecom
  • Industrial
  • 12V Distributed Power Systems

Products

Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IR(A)
ISAT(A)
RDC(mΩ)
fres(MHz)
IRP,40K(A)
ISAT,30%(A)
RDC typ.(mΩ)
VOP(V)
Mount
RDC max.(mΩ)
Samples
WE-MAPI SMT Power Inductor, 0.68 µH, 4.5 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Inductance0.68 µH
Rated Current4.5 A
Saturation Current6.2 A
Self Resonant Frequency85 MHz
Performance Rated Current6.75 A
Saturation Current @ 30%8.1 A
DC Resistance22 mΩ
Operating Voltage80 V
MountSMT 
DC Resistance27 mΩ
WE-LQS SMT Power Inductor, 1.5 µH, 2.95 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Inductance1.5 µH
Rated Current2.95 A
Saturation Current4.3 A
DC Resistance31 mΩ
Self Resonant Frequency100 MHz
Operating Voltage120 V
MountSMT 
WE-XHMI SMT Power Inductor, 2.2 µH, 8 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Inductance2.2 µH
Rated Current8 A
DC Resistance10.5 mΩ
Self Resonant Frequency37 MHz
Performance Rated Current10.85 A
Saturation Current @ 30%16.25 A
DC Resistance10.5 mΩ
Operating Voltage120 V
MountSMT 
DC Resistance11.55 mΩ