LTC1265CS Datasheet

PMIC - Voltage Regulators - DC DC Switching Regulators


The LTC1265CS is a monolithic step-down current mode DC/DC converter featuring Burst Mode TM operation at low output current. The LTC1265CSincorporates a 0.3W switch (VIN =10V) allowing up to 1.2A of output current.Under no load condition, the converter draws only 160mA.In shutdown it typically draws a mere 5mA making this converter ideal for current sensitive applications. In dropout the internal P-channel MOSFET switch is turned on continuously maximizing the life of the battery source. The LTC1265CSincorporates automatic power saving Burst Mode operation to reduce gate charge losses when the load currents drop below the level required for continuous operation.The inductor current is user-programmable via an external current sense resistor. Operation up to 700kHz permits the use of small surface mount inductors and capacitors. LTC1265CS Features &bull; High Efficiency: Up to 95%&bull; Current Mode Operation for Excellent Line and Load Transient Response&bull; Internal 0.3W Power Switch (VIN = 10V)&bull; Short-Circuit Protection&bull; Low Dropout Operation: 100% Duty Cycle&bull; Low-Battery Detector&bull; Low 160mA Standby Current at Light Loads&bull; Active-High Micropower Shutdown: IQ < 15mA&bull; Peak Inductor Current Independent of Inductor Value&bull; Available in 14-pin SO Package LTC1265CS Applications &bull; 5V to 3.3V Conversion&bull; Distributed Power Systems&bull; Step-Down Converters&bull; Inverting Converters&bull; Memory Backup Supply&bull; Portable Instruments&bull; Battery-Powered Equipment&bull; Cellular Telephones


[{"Name":"Number of Outputs","Value":"1"},{"Name":"Voltage - Output","Value":"1.25 V ~ 13 V"},{"Name":"Voltage - Input","Value":"3.5 V ~ 12 V"},{"Name":"PWM Type","Value":"Current Mode, Burst Mode"},{"Name":"Frequency - Switching","Value":"Up to 700kHz"},{"Name":"Current - Output","Value":"1.2A"},{"Name":"Operating Temperature","Value":"0°C ~ 70°C"},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""}]

Manufacturer information


Diodes Incorporated is a leading global manufacturer and supplier of high-quality, application-specific, standard products within the broad discrete, logic and analog semiconductor markets. Diodes Incorporated primarily serves the computing, consumer, communications, industrial and automotive segments. Diodes’ diverse product portfolio includes parts for LCD/LED TVs and displays, desktop, notebook and tablet computing, smartphones and hand-held devices, set-top boxes, power supplies and USB protection as well as many other application areas.

Diodes Incorporated offers a wide array of products including diodes, rectifiers, transistors, MOSFETs, gate drivers, protection devices, function-specific arrays, amplifiers and comparators, Hall-effect sensors and temperature sensors, power management devices including LED drivers, AC-DC converters and controllers, DC-DC switching regulators, linear voltage regulators, current monitors, and voltage reference and shunt regulators, along with special function devices including USB power switches, load switch devices, voltage supervisors and motor controllers.

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