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LR9153 - LOW NOISE 500mA LDO REGULATOR

Description

The UTC LR9153 is a typical LDO (linear regulator) with the

Features

  • Ultra Supply Current: 50µA (Typ. ).
  • Standby Mode: 0.1µA (Typ. ).
  • Very Low Dropout Voltage: 0.30V (Typ. ) @ IOUT =300mA, VOUT =2.85V.
  • Well Line Regulation: 0.02%/ V (Typ. ).
  • Output Voltage Accuracy: ±2.0%.
  • Internal Fold Back Protection Circuit: 80mA (Typ. ) (Current at short mode).
  • CIN=COUT=1.0µF or more (Ceramic capacitors) are recommended to be used with this IC.

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Full PDF Text Transcription

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UNISONIC TECHNOLOGIES CO., LTD LR9153 LOW NOISE 500mA LDO REGULATOR  DESCRIPTION The UTC LR9153 is a typical LDO (linear regulator) with the features of high output voltage accuracy, low supply current, low ON-resistance, and high ripple rejection. During operation of the UTC LR9153, the dropout voltage is very low and the response of line transient and load transient are very well. Internally, there’re many functions of UTC LR9153 which can be seen in the block figure. There are a voltage reference unit, an error amplifier, resistor-net for voltage setting, a current limit circuit, and a chip enable circuit in each UTC LR9153.
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