升压稳压器
芯晶图电子专业芯片代理公司，提供更优质的产品及技术支持
ETA(钰泰半导体)
升压稳压器
ETA1039
The ETA1039 is a high efficiency synchronous step-up converter that can provide up to 1.5A to a fixed output up to 5V from a low voltage source. Unlike most stepup converter, it incorporates circuits that disconnect the input from output, during shutdown, short-circuit, output current overloading, or other events when output is higher than the input. This eliminates the need for an external MOSFET and its control circuitry to disconnect the input from output, and provides robust output overload protection. And ETA1039 also provides the flexibility of setting input peak current limit and thus, output current is limited.
A switching frequency of 1MHz minimizes solution footprint by allowing the use of tiny and low profile inductors and ceramic capacitors. An internal synchronous MOSFET provides highest efficiency and with a current mode control that is internally compensated, external parts count is reduced to minimal.
ETA1039 is housed in a tiny SOT23-6 package.
FEATURES
Output Disconnect
Short-circuit Protection
5V/1.5A Output Power
Output to Input Reversed Current Protection
Up to 96% Efficiency
40μA No load IQ and light load PFM Mode
Internal Synchronous Rectifier
Current Limit Programmable
Current Mode control
Logic Control Shutdown and Thermal shutdown
SOT23-6 Package
APPLICATIONS
USB OTG for MIDs, Smartphones
Mobile back-up Battery Chargers
Alkaline, NiCd, and NiMh batteries applications
USB powered devices
需要样品测试或详细资料请联系：18126521362（点击复制微信号）
