LT3682 - 1A Micropower Step-Down Switching Regulator

Features
  • Wide Input Range: Operation from 3.6V to 36V Overvoltage Lockout Protects Circuits through 60V Transients
  • 1A Output Current
  • Low Ripple Burst Mode® Operation IQ = 75μA at 12VIN to 3.3VOUT Output Ripple < 15mVP-P
  • Adjustable Switching Frequency: 250kHz to 2.2MHz
  • Short-Circuit Protected
  • Synchronizable Between 300kHz and 2.2MHz
  • 0.8V Feedback Reference Voltage
  • Output Voltage 0.8V to 20V
  • Soft-Start Capability
  • Power Good Flag
  • Small 12-Pin Thermally Enhanced 3mm × 3mm DFN Package
Typical Application

Applications
  • Automotive Battery Regulation
  • Automotive Entertainment Systems
  • Industrial Supplies
  • Power for Portable Products
  • Distributed Supply Regulation
Packaging
Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LT3682EDD#PBF3x3 DFN-12E$4.22$2.95
LT3682EDD#TRPBF3x3 DFN-12E$3.01
LT3682IDD#PBF3x3 DFN-12I$4.64$3.25
LT3682IDD#TRPBF3x3 DFN-12I$3.31
Demo Boards
Part NumberDescriptionPrice
DC1222ALT3682EDD Demo Board | 6.9V ≤ VIN ≤ 36V (60V Transients), Vout = 5V @ 2A$125.00
Datasheet
Design Note
Reliability Data
Press Release
LTspice
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LT3682 Footprints and Symbols
LT3682 Demo Circuit - 1A µPower Step-Down Regulator with 60V OV Protection (6.9-36V to 5V @ 1A)