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  • 300mA VLDO (Very Low Dropout) Linear Regulator with Charge Pump Bias Generator
    The LTC®3035 is a micropower, VLDO™ linear regulator which operates from input voltages as low as 1.7V. The device is capable of supplying 300mA of output current with a typical dropout voltage of only 45mV. To allow operation at low input voltages the LTC3035 includes a charge pump generator that provides the necessary bias voltage for the internal LDO circuitry. Output current comes directly from the input supply for high efficiency regulation. The charge pump bias generator requires only a 0.1µF flying capacitor and a 1µF bypass capacitor for operation. The low 0.4V internal reference voltage allows the LTC3035 to be programmed to much lower output voltages than commonly available in LDOs. The output voltage is programmed via two tiny SMD resistors. The LTC3035’s low quiescent current makes it an ideal choice for use in battery-powered systems.
    http://www.linear.com/pc/downloadDocument.do?navId=H0,C1,C1003,C1040,C1055,P16152,D11257
  • FAN2510, FAN2511 100 mA CMOS LDO Regulators with Fast Start Enable
    The FAN2510/11 family of micropower low-dropout voltage regulators utilize CMOS technology to offer a new level of cost-effective performance in CDMA, GSM and TDMA cellular handsets, PDAs, Laptop and Notebook portable computers. The output is thermally protected against overload.
    http://www.fairchildsemi.com/ds/FA%2FFAN2510.pdf
  • FAN2500, FAN2501 100 mA CMOS LDO Regulators
    The FAN2500/01 family of micropower low-dropout voltage regulators utilize CMOS technology to offer a new level of cost-effective performance in GSM and TDMA cellular handsets, PDAs, Laptop and Notebook portable computers, and other portable devices.
    http://www.fairchildsemi.com/ds/FA%2FFAN2500.pdf
  • FAN2508, FAN2509 50 mA CMOS LDO Regulators

    The FAN2508/09 family of micropower low-dropout voltage regulators utilize CMOS technology to offer a new level of cost-effective performance in GSM and TDMA cellular handsets, Laptop and Notebook portable computers, and other portable devices. Features include extremely low power consumption and low dropout voltage, low shutdown current, exceptional loop stability able to accommodate a wide variety of external capacitors, and the compact SOT23-5 surface-mount package. The FAN2508/09 family of products offer significant improvements over older BiCMOS designs and are pin-compatible with many popular devices. The output is thermally protected against overload.



    Features

    • 25 µA ground current at 50 mA
    • Enable/Shutdown Control
    • Ultra Low Power Consumption
    • 300 mA peak current
    • 50 mV dropout voltage at 50 mA
    • SOT23-5 package
    • Thermal limiting


    Applications

    • Portable cameras and video recorders
    • Cellular Phones and accessories
    • PDAs
    • Laptop, notebook and palmtop computers

    http://www.fairchildsemi.com/ds/FA%2FFAN2509.pdf
  • 300mA Micropower Very LDO (VLDO) Linear Regulator
    The LTC®3025 is a micropower, VLDO™ (very low dropout) linear regulator which operates from input voltages as low as 0.9V. The device is capable of supplying 300mA of output current with a typical dropout voltage of only 45mV. A BIAS supply is required to run the internal reference and LDO circuitry while output current comes directly from the IN supply for high efficiency regulation. The low 0.4V internal reference voltage allows the LTC3025 output to be programmed to much lower voltages than available in common LDOs (range of 0.4V to 3.6V). The output voltage is programmed via two ultrasmall SMD resistors.
    http://www.linear.com/pc/downloadDocument.do?navId=H0,C1,C1003,C1040,C1055,P7527,D5092

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