AAT1112中文资料HIGH DRIVING HIGH VOLTAGE OUTPUT DC-DC CONVERTER WITH INTERNAL SWITCH AND SOFT-START数据手册AAT规格书

描述 Description

\tThe AAT1112 is a step-up DC-DC converter with a 4A, 0.2Ω internal switch. Equipped with an external compensation pin, this device offers user flexibility in determining loop dynamic and adjusting operating frequency. AAT1112 also allows the use of small, low equivalent resistance (ESR) ceramic output capacitor, and is capable of converting a standard input of 3.3V to multiple outputs of 8V, –8V, and 23V. Furthermore, filtering and loop performance are facilitated and enhanced by a high switching frequency of either 640kHz or 1.2MHz.


\tThe AAT1112’s versatility comes with a power-smart design. A soft-start programmed with an external capacitor that sets the input current ramp rate and reduces inrush current. 


\tHigh switching frequency and economical design allow AAT1112 to be less than 1.1mm high. Its compact VSON10-3x3 package and superior performance make it an ideal part for biasing TFT displays.

特性 Features

• 4A, 0.2Ω, Internal Switch
• High Efficiency: 90%
• Adjustable Output: VDD to 20V
• Adjustable Frequency: 640kHz or 1.2MHz
• Wide Input Range: +2.6V to +5.5V
• Programmable Soft-Start
• VSON10L-3 x 3 Package Available

应用 Application

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