Features: Under-voltage lockout protection Totem pole output Output short circuit protection ncorporates soft start function Wide operating frequency 10kHz to 1MHz Shut down control Low dissipation current : Typical 1.6mA in operation Sop-8 & Tssop-8 package available PinoutSpecifications ...
AAT1109A: Features: Under-voltage lockout protection Totem pole output Output short circuit protection ncorporates soft start function Wide operating frequency 10kHz to 1MHz Shut down control Low dissipation ...
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CHARACTERISTICS | SYMBOL |
Value | Units |
Supply Voltage |
V DD | 7 | V |
Output current | IO | -120/+120 | mA |
Operating free-air temperature range | T ope | -20 to 85 | °C |
Junction Temperature |
Tstg | -65 to 150 | °C |
Power dissipation | PD | 500 | mW |
The AAT1109A is a one-channel switching regulator control IC incorporating a soft start function and a short circuit protection function. Each device consists of an on-chip voltage reference, error amplifier, pulse width modulation controller, under-voltage protection, soft start and short circuit protection circuits. Switching frequencies up to 1MHz are set by an external resistor and capacitor. Soft-start time can be implemented by the SCP capacitor.
Additionally, a chip enable feature is provided to power down reducing the supply current to 10uA. With a minimum number of external components, the AAT1109A offers a simple and cost effective solution.