ACT  -  Series DataSheet
ACT8325  -  Dual PWM Step-Down DC/DCs in TDFN33  -  Active Semi  -  Power Management

FEATURES
• 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
− RoHS-Compliant
APPLICATIONS
• Portable Devices and PDAs
• MP3/MP4 Players
• Wireless Handhelds
• GPS Receivers
GENERAL DESCRIPTION
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  dvantages 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.