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| Product Brief, 16-Nov-07 Advanced Information-All Information Subject to Change ACT8325 Dual PWM Step-Down DC/DCs in TDFN33 FEATURES * Multiple Patents Pending * Two Integrated Step-Down DC/DC Converters - REG1: 350mA - REG2: 550mA 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 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. * 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 SYSTEM BLOCK DIAGRAM Innovative Products. Active Solutions. ActivePMU TM -1- www.active-semi.com Copyright (c) 2007 Active-Semi, Inc. is a trademark of Active-Semi. Product Brief, 16-Nov-07 ACT8325 PRODUCT OPTIONS Block REG1 REG2 Function Step-Down DC/DC Step-Down DC/DC Output Voltage Adjustable, 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, or 3.3V Capability 350mA 550mA : Output voltage options detailed in this table represent standard voltage options, and are available for samples or production orders. Contact Active-Semi for more information regarding semi-custom output voltage combinations. : Contact factory for additional available products or custom requirements. FUNCTIONAL BLOCK DIAGRAM VP1 ACT8325 UVLO REG1 SW1 ON1 To Battery OUT1 FB1 GP12 ON2 VP2 To Battery REG2 SW2 FB2 GP12 OUT2 GA Innovative Products. Active Solutions. -2- www.active-semi.com Copyright (c) 2007 Active-Semi, Inc. |
Price & Availability of ACT8325
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