Analog Devices LT3045-1 | Demoboard DC2593A

Description

Demonstration circuit DC2593A features theLT®3045EDD-1, a 500mA, ultralow noise, and ultrahighpower supply rejection ratio (PSRR) low dropout (LDO)regulator with programmable current limit. Additionally,the LT3045-1 incorporates a VIOC tracking function tocontrol an upstream switching converter to maintain aconstant voltage across the LT3045-1 and hence minimizepower dissipation.DC2593A operates over an input range of 3.8V to 20V.The LT3045-1 delivers a maximum output current of500mA. It features ultralow noise and ultrahigh PSRR.The power good feedback (PGFB) pin is used to set aprogrammable power good threshold. This IC also offersprogrammable current limit functionality. Current monitoringis also achieved by sensing the ILIM pin voltage. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of AnalogDevices, Inc. All other trademarks are the property of their respective owners.Built-in protection includes reverse battery protection,reverse current protection, internal current limit with foldback,and thermal limit with hysteresis.The LT3045-1 data sheet gives a complete description ofthe device, operation and applications information. Thedata sheet must be read in conjunction with this demomanual for demonstration circuit DC2593A. The LT3045-1EDD is assembled in a 12-lead (3mm × 3mm) plasticDFN package with an exposed pad on the bottom sideof the IC. Proper board layout is essential for maximumthermal performance.

More information

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