LT3685 - 36V, 2A, 2.4MHz Step-Down Switching Regulator

Features
  • Wide Input Range:  Operation From 3.6V to 36V  Overvoltage Lockout Protects Circuit through  60V Transients
  • 2A Maximum Output Current
  • Adjustable Switching Frequency: 200kHz to 2.4MHz
  • Low Shutdown Current: IQ < 1µA
  • Integrated Boost Diode
  • Synchronizable Between 250kHz to 2MHz
  • Power Good Flag
  • Saturating Switch Design: 0.25Ω On-Resistance
  • 0.790V Feedback Reference Voltage
  • Output Voltage: 0.79V to 20V
  • Soft-Start Capability
  • Small 10-Pin Thermally Enhanced MSOP and (3mm x 3mm) DFN Packages
Typical Application

Applications
  • Automotive Battery Regulation
  • Set Top Box
  • Distributed Supply Regulation
  • Industrial Supplies
  • Wall Transformer Regulation
Packaging

Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LT3685EDD#PBF3x3 DFN-10E$4.36$3.05
LT3685EDD#TRPBF3x3 DFN-10E$3.11
LT3685EMSE#PBFMS-10EE$4.50$3.15
LT3685EMSE#TRPBFMS-10EE$3.21
LT3685IDD#PBF3x3 DFN-10I$5.23$3.66
LT3685IDD#TRPBF3x3 DFN-10I$3.72
LT3685IMSE#PBFMS-10EI$5.40$3.78
LT3685IMSE#TRPBFMS-10EI$3.84
Demo Boards
Part NumberDescriptionPrice
DC1167ALT3685EMSE Demo Board | (MSOP) 6.3V ≤ VIN ≤ 38V (60V Transients), Vout = 5V @ 2A$150.00
DC1212A-BLT3685EDD Demo Board | (DFN) EN55022-Compliant, 6.3V ≤ VIN ≤ 38V (60V Transients), Vout = 5V @ 2A$100.00
Datasheet
Application Note
Reliability Data
Press Release
LTspice
Related Product
LT3685 - 36V, 2A, 2.4MHz Step-Down Switching Regulator
LT3685 Package Drawing LT3685
AN126 - 2-Wire Virtual Remote Sensing for Voltage Regulators - Clairvoyance Marries Remote Sensing
R530 - Reliability Data
LT3685 - 38V、2A (IOUT)、2.4MHz 降压型 DC/DC 转换器具 60V 瞬态保护
LT3685 Footprints and Symbols
LT3685 Demo Circuit - 36V, 2A, 2.4MHz Step-Down Regulator (24V to 3.3V @ 2A)