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A7523 - SUPER-SMALL PACKAGE PWM CONTROL STEP-UP SWITCHING REGULATOR

Datasheet Summary

Description

The A7523 is a compact, high efficiency, and low voltage step-up DC/DC converter with an Adaptive Current Mode PWM control loop, includes an error amplifier, ramp generator, comparator, switch pass element and driver in which providing a stable and high efficient operation over a wide range of load

Features

  • 0.8V（Iout=1mA） Low Start-up Input Voltage.
  • 500kHz Fixed Switching Frequency.
  • 90% Efficiency.
  • High Supply Capability to Deliver 3.3V 300mA with1 Alkaline Cell or Deliver 5V 800mA with 1 Li-ion Cell.
  • 14μA Quiescent (Switch-off) Supply Current.
  • 0.01μA Shutdown Mode Supply Current.
  • Providing Flexibility for Using Internal and External Power Switches.
  • Output voltage: Settable to between 2.0V to 6.0V ,accuracy of 2%.
  • Available in SOT-26 package.

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Datasheet Details

Part number A7523
Manufacturer AiT Semiconductor
File Size 585.06 KB
Description SUPER-SMALL PACKAGE PWM CONTROL STEP-UP SWITCHING REGULATOR
Datasheet download datasheet A7523 Datasheet
Additional preview pages of the A7523 datasheet.

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Full PDF Text Transcription

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AiT Semiconductor Inc. www.ait-ic.com A7523 DC-DC CONVERTERBOOST(STEP-UP) SUPER-SMALL PACKAGE PWM CONTROL STEP-UP SWITCHING REGULATOR DESCRIPTION The A7523 is a compact, high efficiency, and low voltage step-up DC/DC converter with an Adaptive Current Mode PWM control loop, includes an error amplifier, ramp generator, comparator, switch pass element and driver in which providing a stable and high efficient operation over a wide range of load currents. It operates in stable waveforms without external compensation. The low start-up input voltage below 1V makes A7523 suitable for 1 to 4 battery cells applications of providing up to 600mA output current. Besides, the 14μA low quiescent current together with high efficiency maintains long battery lifetime.
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