HomedatasheetLT3510EFE

LT3510EFE Datasheet

PMIC - Voltage Regulators - DC DC Switching Regulators
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Description

The LT3510EFE is a dual current mode PWM step-downDC/DC converter with two internal 2.5A switches. Independentinput voltage, feedback, soft-start and powergood pins for each channel simplify complex powersupply tracking/sequencing requirements.Both converters are synchronized to either a commonexternal clock input or a resistor programmable fi xed250kHz to 1.5MHz internal oscillator. At all frequencies, a180&deg; phase relationship between channels is maintained,reducing voltage ripple and component size. Programmablefrequency allows for optimization between effi ciency andexternal component size.Minimum input-to-output voltage ratios are improvedby allowing the switch to stay on through multiple clockcycles, only switching off when the boost capacitor needsrecharging, resulting in ~95% maximum duty cycle.Each output can be independently disabled using its ownsoft-start pin, or by using the SHDN pin the entire part canbe placed in a low quiescent current shutdown mode.The LT3510EFE is available in a 20-lead TSSOP package withexposed leadframe for low thermal resistance. LT3510EFE Features &bull; Wide Input Range: 3.1V to 25V&bull; Two Switching Regulators with 2A Output Capability&bull; Independent Supply to Each Regulator&bull; Adjustable/Synchronizable Fixed FrequencyOperation from 250kHz to 1.5MHz&bull; Antiphase Switching&bull; Outputs Can be Paralleled&bull; Independent, Sequential, Ratiometric or AbsoluteTracking Between Outputs&bull; Independent Soft-Start and Power Good Pins&bull; Enhanced Short-Circuit Protection&bull; Low Dropout: 95% Maximum Duty Cycle&bull; Low Shutdown Current: <10&mu;A&bull; 20-Lead TSSOP Package with Exposed Leadframe LT3510EFE Applications &bull; DSP Power Supplies&bull; Disc Drives&bull; DSL/Cable Modems&bull; Wall Transformer Regulation&bull; Distributed Power Regulation&bull; PCI Cards
Features

Parameters

[{"Name":"Number of Outputs","Value":"2"},{"Name":"Voltage - Output","Value":"0.8 V ~ 23.8 V"},{"Name":"Voltage - Input","Value":"3.1 V ~ 25 V"},{"Name":"Frequency - Switching","Value":"250kHz ~ 1.5MHz"},{"Name":"Current - Output","Value":"2A"},{"Name":"Operating Temperature","Value":"-40°C ~ 125°C"},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""}]

Manufacturer information

ON SEMICONDUCTOR

ON Semiconductor - ON Semiconductor (Nasdaq: ON) is driving energy efficient innovations, empowering customers to reduce global energy use. The company offers a comprehensive portfolio of energy efficient power and signal management, logic, discrete and custom solutions to help design engineers solve their unique design challenges in automotive, communications, computing, consumer, industrial, LED lighting, medical, military/aerospace and power supply applications. ON Semiconductor operates a responsive, reliable, world-class supply chain and quality program, and a network of manufacturing facilities, sales offices and design centers in key markets throughout North America, Europe, and the Asia Pacific regions.

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