FEATURES
n Wide Input Range: 4V to 36V n One 2.7A and Two 1.8A Output Switching Regulators with Internal Power Switches n Low Dropout Linear Regulator with External Transistor n Antiphase Switching Reduces Ripple n Independent Run, Tracking/Soft-Start, and Power Good Indicators Ease Supply Sequencing n Uses Small Inductors and Ceramic Capacitors n Adjustable, 250kHz to 2.5MHz Switching Frequency, Synchronizable Over the Full Range n User Programmable Overvoltage and Undervoltage Lockouts n Thermally Enhanced, 38-Lead TSSOP and 5mm × 7mm QFN Packages APPLICATIONS
n Automotive n Industrial Supplies n Distributed Power Regulation n DSP Power LT3507A Triple Monolithic Step-Down Regulator with LDO DESCRIPTION
The LT®3507A is a triple, current mode, DC/DC converter with internal power switches and a low dropout regulator. The switching converters are step-down converters capable of generating one 2.7A output and two 1.8A outputs. All three converters are synchronized to a single oscillator. The 2.7A output runs with opposite phase to the other two converters, reducing input ripple current.
Linear Technology
