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AT1780 - Low-Noise Step-Up Current-Mode PWM Controller

Description

The AT1780 is a current-mode step-up DC/DC converter with a 1.6A, 0.21Ω power MOSFET.

The soft-start function is programmed with an external capacitor, which sets the input current ramp rate.

It is ideal for generating bias voltages for LCD panels.

Features

  • 1.6A,0.21Ω,14V Power MOSFET.
  • Operating input voltage:+2.6V to +5.5V.
  • Adjustable Output from VIN to 12V.
  • 640kHz /1.2MHz pin selectable switching Frequency.
  • 0.1μA shutdown Current.
  • Built-in Soft-Start function.
  • Small 8-Pin MSOP Package General.

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Datasheet preview – AT1780

Datasheet Details

Part number AT1780
Manufacturer Aimtron Technology
File Size 353.35 KB
Description Low-Noise Step-Up Current-Mode PWM Controller
Datasheet download datasheet AT1780 Datasheet
Additional preview pages of the AT1780 datasheet.

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Full PDF Text Transcription

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www.DataSheet4U.com AT1780 Preliminary Product Information 640kHz/1.2MHz,Low-Noise Step-Up Current-Mode PWM Controller Features • 1.6A,0.21Ω,14V Power MOSFET • Operating input voltage:+2.6V to +5.5V • Adjustable Output from VIN to 12V • 640kHz /1.2MHz pin selectable switching Frequency • 0.1μA shutdown Current • Built-in Soft-Start function • Small 8-Pin MSOP Package General Description The AT1780 is a current-mode step-up DC/DC converter with a 1.6A, 0.21Ω power MOSFET. The soft-start function is programmed with an external capacitor, which sets the input current ramp rate. It is ideal for generating bias voltages for LCD panels. Pin selectable frequency 640KHz or 1.2MHz operation results in a low noise output that is easy to filter and faster loop performance.
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