升压稳压器
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ETA(钰泰半导体)
升压稳压器
ETA1035
The ETA1035 is a high efficiency synchronous step-up converter that can provide up to 3W of power to a boosted output from a low voltage source. Unlike most step-up converter, not only it starts up at a very low input voltage as low as 0.85V, it also 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.
The ETA1035 starts up from a voltage as low as 0.85V making it ideal for applications with single-cell or two-cell alkaline, NiCd, and NiMh batteries. A switching frequency of 2MHz 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.
FEATURES
Output Disconnect
Short-circuit Protection
3W Output Power
Output to Input Reversed Current Protection
0.85V Low Start-up Voltage
VIN range from 0.6V to 4.5V
Up to 96% Efficiency
40μA No load IQ and light load PFM Mode
Internal Synchronous Rectifier
Current Mode control
Logic Control Shutdown and Thermal shutdown
DFN2x2-6 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）
