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AT1314 - High-Efficiency Step-Down Current Regulator

Description

Aimtron reserves the right without notice to change this circuitry and specifications.

Features

  • a PWM step-down converter operating with a fixed switching frequency of 600 KHz and uses internal power MOSFET to provide maximum efficiency. The output voltage of the converter can be set as low as 0.4V 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 field.

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Datasheet Details

Part number AT1314
Manufacturer Aimtron Technology
File Size 338.07 KB
Description High-Efficiency Step-Down Current Regulator
Datasheet download datasheet AT1314 Datasheet

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Full PDF Text Transcription

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www.DataSheet4U.com AT1314 Preliminary Product Information High-Efficiency Step-Down Current Regulator For LEDs Feature ‧ 4.75V to 16V Supply Voltage Operating AT1314 is a voltage-mode PWM step-down DC-DC converter capable of driving up to 1A Range. over a wide input supply range with excellent ‧ 600KHz 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. ‧ 1A Output Current, Up to 91.9% Efficiency It uses a fixed switching frequency up to 600KHz ‧ 0.4V 1.5% Internal Reference thus allowing smaller sized components. The ‧ Shutdown Current less than 20uA.
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