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AT1799 - Step-Down Voltage Regulator

Description

AT1799 is a voltage-mode PWM step-down DC-DC converter capable of driving up to 2A Range.

over a wide input supply range with excellent ‧ 380KHz 15% Fixed Switching Frequency.

loads line and load regulation characteristics.

Features

  • a PWM step-down converter operating with a fixed switching frequency of 380 KHz and uses internal power MOSFET to provide maximum efficiency. The output voltage of the converter can be set as low as 1.215V with external resistive divider. When trans-conductance signal is higher than saw-tooth wave, then PWM comparator will produce ON-time signal to set internal flip-flop, which turns on the switching power MOSFET. The external inductor current ramps up linearly, storing energy in a magnetic fiel.

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Datasheet Details

Part number AT1799
Manufacturer Aimtron Technology
File Size 373.69 KB
Description Step-Down Voltage Regulator
Datasheet download datasheet AT1799 Datasheet

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Full PDF Text Transcription

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www.DataSheet4U.com AT1799 2A Step-Down Voltage Regulator Feature Description ‧ 4.75V to 16V Supply Voltage Operating AT1799 is a voltage-mode PWM step-down DC-DC converter capable of driving up to 2A Range. over a wide input supply range with excellent ‧ 380KHz 15% Fixed Switching Frequency. loads line and load regulation characteristics. High ‧ Voltage-Mode PWM Step-Down Regulator. efficiency is obtained through the use of a low ‧ Built-in Power MOSFET, Rds(on) 100m . Rds(on) P-channel power switch. ‧ 2A Output Current, Up to 91.9% Efficiency It uses a fixed switching frequency up to 380KHz ‧ 1.215V 1.5% Internal Reference thus allowing smaller sized components. The ‧ Shutdown Current less than 20uA.
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