AAT1109中文资料ONE-CHANNEL BOOST PWM CONTROLLER数据手册AAT规格书

描述 Description

\tThe AAT1109 is a one-channel boost PWM controller incorporating a soft-start and a short circuit protection (SCP) function.


\tThis device consists of an on-chip voltage reference, error amplifier, pulse width modulation controller, under-voltage lockout protection, soft-start, and short circuit protection circuits. Switching frequency up to 1MHz is set by an external resistor and capacitor. Soft-start time can be implemented by the SCP capacitor.


\tAdditionally, a chip-enable feature is also provided to power down and reduce current supply to 10µA.  With minimal external components, the AAT1109 offers a simple and economical solution.

特性 Features

• Under-Voltage Lockout (UVLO) Protection
• Totem Pole Output
• Output Short Circuit Protection
• Soft-Start Function
• Wide Operating Frequency: 10kHz to 1MHz
• Shutdown Control
• Low Dissipation Current: Typical 1.6mA in Operation
• SOP-8 & TSSOP-8 Package Available

应用 Application

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