'TDFN33' related articles 1

  1. 2009/06/09 ACT8325 - Dual PWM Step-Down DC/DCs in TDFN33
The patent-pending ACT8325 integrates two stepdown DC/DCs into a single, thin, space-saving package to provide a cost-effective, highly-efficient ActivePMUTM power management solution. This device is ideal for a wide range of portable handheld equipment that can benefit from the advantages of ActivePMU technology but do not require a high level of integration.
REG1 and REG2 are fixed-frequency, current-mode PWM step-down DC/DC converters that are optimized for high efficiency and are capable of supplying up to 350mA and 550mA, respectively. Both outputs are available in a wide range of factorypreset output voltage options, and an adjustable output voltage mode is also available.
The ACT8325 is available in a tiny 3mm x 3mm 10-pin Thin-DFN package that is just 0.75mm thin.

*Multiple Patents Pending
*Two Integrated Step-Down DC/DC Converters
-REG1: 350mA
-REG2: 550mA
*180° Out-of-Phase Operation
-Reduces Input Capacitor Requirements
*Fixed or Adjustable Output Voltage Options
*Independent Enable/Disable Control
*Minimal External Components
*3x3mm, Thin-DFN (TDFN33-10) Package
-Only 0.75mm Height

*Portable Devices and PDAs
*MP3/MP4 Players
*Wireless Handhelds
*GPS Receivers

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