Linear Technology LT3501
Monolithic Dual Tracking 3A Step-Down Switching Regulator
FEATURES
n Wide Input Range: 3.1V to 25V n Two Switching Regulators with 3A Output Capability n Independent Supply to Each Regulator n Adjustable/Synchronizable Fixed Frequency Operation from 250kHz to 1.5MHz n Antiphase Switching n Outputs Can be Paralleled n Independent, Sequential, Ratiometric or Absolute Tracking Between Outputs n Independent Soft-Start and Power Good Pins n Enhanced Short-Circuit Protection n Low Dropout: 95% Maximum Duty Cycle n Low Shutdown Current: <10µA n 20-Lead TSSOP Package with Exposed LeadframeAPPLICATIONS
n DSP Power Supplies n Disc Drives n DSL/Cable Modems n Wall Transformer Regulation n Distributed Power Regulation L, LT, LTC, LTM, Linear Technology, Burst Mode and the Linear logo are registered trademarks and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. LT3501 Monolithic Dual Tracking 3A Step-Down Switching RegulatorDESCRIPTION
The LT®3501 is a dual-current mode PWM step-down DC/DC converter with two internal 3.5A switches.