Regulator IC suits on-board dc/dc conversion
The APU3037-3 controller IC is a low-cost synchronous buck regulator for on-board dc to dc converter applications. It features an internal 200-kHz oscillator (400-kHz for the A-version), under-voltage lockout for both Vcc and Vc supplies, external programmable soft-start function, and output under-voltage detection that latches the device off when an output short is detected.
The controller IC operates with single 5– or 15–V supply in fixed frequency voltage mode and has a 500–mA peak output drive capability. The package is halogen-free and compliant with both current RoHS and REACH environmental requirements for hazardous materials. Applications include DDR memory source/sink Vtt, graphics cards and hard disk drives, or products that require an on board 1.8, 2.5, 3.3 or 5–V dc/dc converter. (Contact company for price and availability.)
By Paul O’Shea
Advanced Power Electronics , San Jose , CA , United States
Information 408-717-4231
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