DESCRIPTION

The LT®3510 is a dual current mode PWM step-down DC/DC converter with two internal 2.5A switches. Independent input voltage, feedback, soft-start and power good pins for each channel simplify complex power supply tracking/sequencing requirements.

FEATURES

■ Wide Input Range: 3.1V to 25V
■ Two Switching Regulators with 2A Output Capability
■ Independent Supply to Each Regulator
■ Adjustable/Synchronizable Fixed Frequency
Operation from 250kHz to 1.5MHz
■ Antiphase Switching
■ Outputs Can be Paralleled
■ Independent, Sequential, Ratiometric or Absolute
Tracking Between Outputs
■ Independent Soft-Start and Power Good Pins
■ Enhanced Short-Circuit Protection
■ Low Dropout: 95% Maximum Duty Cycle
■ Low Shutdown Current: <10μA
■ 20-Lead TSSOP Package with Exposed Leadframe

APPLICATIONS

■ DSP Power Supplies
■ Disc Drives
■ DSL/Cable Modems
■ Wall Transformer Regulation
■ Distributed Power Regulation
■ PCI Cards