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FEATURES
• Wide 4.5V to 28V Input Voltage Range • 1.5A Output Current (12VIN to 5VOUT) • Output Adjustable Down to 0.81V • 0.3Ω Internal Power MOSFET • Up to 92% Efficiency • Stable with Low ESR Ceramic Output Capacitors • Fixed 1.4MHz Operating Frequency • Internal Soft-Start Function • Over Current Protection with Hiccup-Mode • Thermal Shutdown • Available in a SOT23-6 Package
APPLICATIONS
• TFT LCD Monitors • Portable DVD, Headphones, MP3 Players, etc. • Car-Powered or Battery-Powered Equipment • Set-Top Boxes • Telecom Power Supplies • DSL and Cable Modems and Routers
TYPICAL APPLICATION CIRCUIT
ACT4088
28V, 1.5A, 1.4MHz Step-Down DC/DC Converter in SOT23-6
GENERAL DESCRIPTION
The ACT4088 is a current-mode step-down DC/DC converter that supplies up to 1.5A into 5V from a 12V input. 1.