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  • Application Requirements Drive Choice of Voltage Regulator in Portable Systems
    . The growing use of multi-voltage designs has further complicated the designer's task. Many of the new function blocks designers are introducing into portable devices do not operate at the same voltage as the system power source. For example, the typical single cell lithium-ion battery powering a cell phone
  • Broadcast FM Radio Tuner for Portable Applications
    measurement. Programmable de-emphasis (50/75 µs). Adaptive noise suppression. Volume control. Line-level analog output. 32.768 kHz reference clock. 2-wire and 3-wire control interface. 2.7 to 5.5 V supply voltage. Integrated LDO regulator allows direct connection to battery. 3 x 3 mm 20-pin QFN package
  • Pin-Compatible CMOS Upgrades to Bipolar LDOs
    Bipolar low dropout regulators (LDOs) have become common place in a variety of portable applications, such as cell phones, pagers and PDAs. Their popularity stems from small packaging, high output current capability and precision output voltage specifications. However, the bipolar process
  • Design A Load Sharing System Power Path Management with Microchip's Stand-Alone Li-Ion Battery Charger
    Charger Power *Protection Circuits Battery supplies system load Supply *Voltage Regulator
  • Using Microchip's Micropower LDOs
    AN765 Using Microchip's Micropower LDOs EQUATION 1: Author: Paul Paglia, V = V []()R ? R + 1Microchip Technology Inc. OUT REF 1 2 V =1.20V REF INTRODUCTION Microchip Technology, Inc.'s family of micropower LDOs utilizes low-voltage CMOS process technology. VV V VThese LDOs provide similar ripple

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