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SA57026 - 300mA LDO

Description

The SA57026 has an extremely precise fixed output with a typical accuracy of ±2%.

It is designed to provide very low dropout and low noise in CD-ROM drives, battery-operated systems, and portable computers applications.

Features

  • Very low dropout voltage: 500 mV typ. (Iout = 50 mA).
  • High precision output voltage: ±2%.
  • Output current capacity: 300 mA.
  • Low noise: 40 mVrms typ. @ 20 Hz to 80 KHz and for Cn = 10 nF.
  • Extremely good line regulation: 10 mV typical.
  • Extremely good load regulation: 20 mV typical.
  • Low temperature drift co-efficient to Vout: ±100 ppm/°C.
  • Internal current limit and thermal shut-down circuits.
  • Adjustment-free reset det.

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INTEGRATED CIRCUITS SA57026 300 mA LDO with ON/OFF control and independent delayed RESET function Product data Supersedes data of 2001 Oct 03 2003 Oct 13 Philips Semiconductors Philips Semiconductors Product data 300 mA LDO with ON/OFF control and independent delayed RESET function SA57026 GENERAL DESCRIPTION The SA57026 has an extremely precise fixed output with a typical accuracy of ±2%. It is designed to provide very low dropout and low noise in CD-ROM drives, battery-operated systems, and portable computers applications. This regulator consists of an internal voltage reference, an error amplifier, a driver with current limiter, and a thermal shut-down mechanism. An Active-LOW RESET is assered when the detected voltage (VDET) falls below the reset voltage threshold.
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