LT3506 - Dual Monolithic 1.6A Step-Down Switching Regulator

Features
  • Wide Input Voltage Range, 3.6V to 25V
  • Two 1.6A Output Switching Regulators with Internal Power Switches
  • Constant Switching Frequency LT3506: 575kHz LT3506A: 1.1MHz
  • Anti-Phase Switching Reduces Ripple
  • Accurate 0.8V Reference, ±1%
  • Independent Shutdown/Soft-Start Pins
  • Independent Power Good Indicators Ease Supply Sequencing
  • Uses Small Inductors and Ceramic Capacitors
  • Small 16-Lead Thermally Enhanced 5mm × 4mm DFN and TSSOP Surface Mount Packages
Typical Application

Applications
  • Disk Drives
  • DSP Power Supplies
  • Wall Transformer Regulation
  • Distributed Power Regulation
  • DSL Modems
  • Cable Modems
Packaging

Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LT3506AEDHD#PBF5x4 DFN-16E$4.21$2.95
LT3506AEDHD#TRPBF5x4 DFN-16E$3.01
LT3506AEFE#PBFTSSOP-16E$4.36$3.05
LT3506AEFE#TRPBFTSSOP-16E$3.11
LT3506AIDHD#PBF5x4 DFN-16I$5.06$3.54
LT3506AIDHD#TRPBF5x4 DFN-16I$3.60
LT3506AIFE#PBFTSSOP-16I$5.23$3.66
LT3506AIFE#TRPBFTSSOP-16I$3.72
LT3506EDHD#PBF5x4 DFN-16E$4.21$2.95
LT3506EDHD#TRPBF5x4 DFN-16E$3.01
LT3506EFE#PBFTSSOP-16E$4.36$3.05
LT3506EFE#TRPBFTSSOP-16E$3.11
LT3506IDHD#PBF5x4 DFN-16I$5.06$3.54
LT3506IDHD#TRPBF5x4 DFN-16I$3.60
LT3506IFE#PBFTSSOP-16I$5.23$3.66
LT3506IFE#TRPBFTSSOP-16I$3.72
Demo Boards
Part NumberDescriptionPrice
DC958ALT3506/LT3506A Demo Board | 2 Circuits, Dual, 25V, 1.6A Monolithic Step-Down ConverterContact Factory
Datasheet
Design Note
Reliability Data
Press Release
LTspice
Related Product
LT3506/LT3506A - Dual Monolithic 1.6A Step-Down Switching Regulator
LT3506 Package Drawing LT3506
DN404 - 双通道单片式降压型开关稳压器提供了高达 1.6A 的输出电流、减低的 EMI 和低至 0.8V 的 VOUT
R458 Reliability Data
1.1MHz, 25V Dual Step-Down DC/DC Converter Delivers 1.6A per Channel from a 5mm x 4mm DFN Package
LT3506 Footprints and Symbols
36Vin Multichannel Bucks
LT3506 Demo Circuit - Dual 1.6A, 575KHz Step-Down Regulator (3.6-21V to 1.8V @ 1.6A & 1.2V @ 1.6A)
LT3506A Demo Circuit - Dual 1.6A, 1.1MHz Step-Down Regulator (6.8-25V to 5V @ 1.6A & 3.3V @ 1.6A)