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New Products
September 25, 2012
Semtech Corporation's 30V Micropower Buck Regulator Platform Improves Battery Life and Reduces Standby Power in Consumer Applications
Semtech launched the first device in its platform of high-efficiency micropower step-down switching regulators. The SC4530 is a 30V micropower buck regulator that provides light-load efficiency greater than 80% at 650µA output and an ultra-small, 50mm2 solution footprint. This combination of features addresses the key requirements for long battery life, small size and design simplicity in notebook PCs and set-top box applications.
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"Semtech's new SC4530 provides longer standby times in both battery-powered and line-powered consumer electronics by providing designers a high efficiency power solution for light-load conditions," said Andy Khayat, Senior Business Unit Director for Consumer Power in Semtech's Power Management Group. "This micropower buck regulator increases light-load efficiency up to 10 percent giving Semtech's customers another means to achieve their power efficiency goals."
The SC4530 operates from a 3V to 30V supply and provides an adjustable output voltage with output current up to 300mA. The very-wide input voltage range enables the device to operate from a variety of input sources, including single- or multi-cell batteries, internal system rails and wall adapters.
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A web-based design evaluation and simulation model is available for the SC4530. It can be accessed through Semtech's C-SIM design simulation tool at: http://semtech.transim.com/CSIM/pages/ProdSel.aspx?part_number=SC4530
Key Features of SC4530
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* Wide VIN range: 3V to 30V
* IOUT: up to 300mA
* Greater than 80% standby efficiency (at 650µA, 12V input, 5V output)
* Greater than 85% operating efficiency (at 10mA - 300mA, 12V input, 5V output)
* Small BOM: integrated power switch, Schottky diodes, compensation
* Solution footprint as small as 50mm2
* Packaging: MLPD, 8-pin, 3 x 2 x 0.8mm
Applications
* Notebook PCs, Ultrabooks, Tablet PCs: Peripheral Power
* HDTV: Switching Regulator
* Set Top Box: Switching Regulator
* Laser Printer: Switching Regulator
* Route and Switch: Switching Regulator
* White Goods: Switching Regulator
* Industrial Modules: Power Supplies
* Industrial Gaming: Gaming Power Supplies
* Industrial PC: System Power
The SC4530 is available immediately in production quantities and is priced at $0.58 each in 3,000-piece lots. The ordering code is SC4530WLTRT. Evaluation boards (SC4530EVB) are also available. Semtech offers comprehensive design assistance, including field- and factory-based support. Data sheets, volume pricing, and delivery quotes, as well as evaluation kits and samples, are available at http://www.semtech.com/info
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