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Note

A buck converter is a step-down DC to DC converter. Its design is similar to the step-up boost converter, and like the boost converter it is a switched-mode power supply that uses two switches (a transistor and a diode) and an inductor and a capacitor.

Buck converter. (2008, February 23). In Wikipedia, The Free Encyclopedia. Retrieved 12:33, February 24, 2008, from
http://en.wikipedia.org/w/index.php?title=Buck_converter&oldid=193462030

Links
  • L4960 2.5A Power Switching Regulator
    The L4960 is a monolithic power switching regulator delivering 2.5A at a voltage variable from 5V to 40V in step down configuration. Features of the device include current limiting, soft start, thermal protection and 0 to 100% duty cycle for continuous operation mode.
    http://www.st.com/stonline/products/literature/ds/1356/l4960.pdf
  • LTC3549 250mA Low VIN Buck Regulator in 2mm × 3mm DFN
    The LTC®3549 is a high efficiency, monolithic synchronous buck regulator using a constant-frequency, current mode architecture. The output voltage is adjusted via an external resistor divider. A fixed switching frequency of 2.25MHz is supported. This switching frequency allows the use of small surface mount inductors and capacitors, including ceramics.
    http://www.linear.com/pc/downloadDocument.do?navId=H0,C1,C1003,C1042,C1032,P26952,D16357
  • A5973D 2.5 A switch step down switching regulator for automotive applications
    The A5973D is a step down monolithic power switching regulator with a minimum switch current limit of 2.5 A so it is able to deliver more than 2 A DC current to the load depending on the application conditions. The output voltage can be set from 1.235 V to 35 V. The high current level is also achieved thanks to an SO8 package with exposed frame, that allows to reduce the Rth(JA) down to approximately 40 °C/W.
    http://www.st.com/stonline/products/literature/ds/13957/a5973d.pdf
  • A5972D 2A switch step down switching regulator for automotive applications
    The A5972D is a step down monolithic power switching regulator with a minimum switch current limit of 2 A so it is able to deliver more than 1.5 A DC current to the load depending on the application conditions. The output voltage can be set from 1.235 V to 35 V. The device uses an internal P-channel D-MOS transistor (with a typical Rdson of 250mΩ) as switching element to minimize the size of the external components.
    http://www.st.com/stonline/products/literature/ds/13956/a5972d.pdf
  • LTC3410-1.875 2.25MHz, 300mA Synchronous Step-Down Regulator in SC70
    The LTC ®3410-1.875 is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. Supply current during operation is only 26µA, dropping to <1µA in shutdown. The 2.5V to 5.5V input voltage range makes the LTC3410-1.875 ideally suited for single Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems.
    http://www.linear.com/pc/downloadDocument.do?navId=H0,C1,C1003,C1042,C1032,P20652,D14378

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