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1A, 5.5V, Ultra Low Dropout Linear Regulator

RT9085A

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The RT9085A is a high performance positive voltage regulator with separated bias voltage (VBIAS), designed for applications requiring low input voltage and ultra low dropout voltage, output current up to 1A. The feature of ultra low dropout voltage is ideal for applications where output voltage is very close to input voltage. The input voltage can be as low as 0.8V and the output voltage is adjustable by an external resistive divider. The RT9085A features very low quiescent current consumption for portable applications. The device is available in the WL-CSP-6B 0.8x1.2 (BSC) package.

Applications

  • Battery Powered Systems
  • Portable Electronic Device
  • Digital Set Top Boxes
Key Spec.
RT9085A
Status Active
Vin (min) (V) 0.8
Vin (max) (V) 5.5
Vout (min) (V) 0.5
Vout (max) (V) 3
Output Adj. Method Fixed;Resistor
Accuracy (+/- %) 1
Iout (max) (mA) 1000
Iq (typ) (uA) 35
Current Limit (typ) (mA)
Vdropout @ rated current (typ) (mV) 60 @ 1A
Cout (min) (uF)
Cout Type Ceramic
Features Enable Input;OCP
Package Type WL-CSP0.8x1.2-6(BSC)
Features
  • Input Voltage Range : 0.8V to 5.5V
  • Bias Voltage Range : 3V to 5.5V
  • Adjustable Output Voltage Version, Output Voltage Range : 0.5V to 3V
  • Ultra Low Dropout Voltage : 60mV at 1A
  • Output Voltage Accuracy
    ► ± 1% Over Operating Ambient Temperature
    ► ± 0.5% @ 25°C
  • Low Bias Input Current
    ► Typ 35μA in Operating Mode
    ► Typ 0.5μA in Disable Mode
  • Output Active Discharge Function
  • Enable Control
  • Stable with a 10μF Output Ceramic Capacitor
  • RoHS Compliant and Halogen/Pb Free
Datasheet
TitleLast UpdateShareDownload
1A, 5.5V, Ultra Low Dropout Linear Regulator2018/03/14
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