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, analog and mixed-signal semiconductor markets. Diodes serves the consumer electronics, computing, communications, industrial, and automotive markets.
Diodes’ products include diodes, rectifiers, transistors, MOSFETs, protection devices, function-specific arrays, single gate logic, amplifiers and comparators, Hall-effect and temperature sensors, power management devices, including LED drivers, AC-DC converters and controllers, DC-DC switching and linear voltage regulators, and voltage references along with special function devices, such as USB power switches, load switches, voltage supervisors, and motor controllers.
Diodes’ corporate headquarters and Americas’ sales office are located in Plano, Texas and Milpitas, California. Design, marketing, and engineering centers are located in Plano; Milpitas; Taipei, Taiwan; Taoyuan City, Taiwan; Zhubei City, Taiwan; Manchester, England; and Neuhaus, Germany. Diodes’ wafer fabrication facilities are located in Manchester and Shanghai, China. Diodes has assembly and test facilities located in Shanghai, Jinan, Chengdu, and Yangzhou, China, as well as in Hong Kong, Neuhaus and Taipei. Additional engineering, sales, warehouse, and logistics offices are located in Taipei; Hong Kong; Manchester; Shanghai; Shenzhen, China; Seongnam-si, South Korea; and Munich, Germany, with support offices throughout the world.

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