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LR9273 - SUPER LOW ON RESISTANCE/LOW VOLTAGE 1A LDO REGULATOR

Description

The UTC LR9273 is a typical LDO (linear regulator) with

Features

  • Ultra Supply Current: 60µA (Typ. ).
  • Standby Mode: 0.1µA (Typ. ).
  • Very Low Dropout Voltage: 0.18V (Typ. ) @IOUT =1A, VOUT =2.85V.
  • Ripple Rejection: 70dB (Typ. ) @f=1kHz,VOUT=2.85V.
  • Temperature-Drift Coefficient ±100ppm/°C (Typ. ) of Output Voltage:.
  • Well Line Regulation: 0.02%/ V (Typ. ).
  • Output Voltage Accuracy: ±1.5% (Typ. ).
  • Internal Fold Back Protection 250mA (Typ. ) @ short mode Circuit:.
  • CIN=COUT=4.7µF or more (Ceramic capacitors) are.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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UNISONIC TECHNOLOGIES CO., LTD LR9273 Preliminary SUPER LOW ON RESISTANCE/LOW VOLTAGE 1A LDO REGULATOR  DESCRIPTION The UTC LR9273 is a typical LDO (linear regulator) with features of super low dropout, 1A output current capability, and -3mV typical load regulation at 1A. During operation of the UTC LR9273, 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 LR9273 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 LR9273.
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