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500mA, Low Voltage, LDO Regulator with External Bias Supply

RT9041C/RT9041D

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The RT9041C/D are low-voltage, low-dropout linear regulators with an external bias supply input. The bias supply drives the gate of the internal N-MOSFET, making these devices ideal for applications that require low voltage outputs from low voltage inputs. The RT9041C/D provide fixed voltages from 1V to 2V with 0.1V increment. Additionally, RT9041D is capable of using external resistors to provide adjustable output voltages. The RT9041C/D include current limit and thermal shutdown features that protect the regulator in the event of a fault condition.

The RT9041C/D is available in a SOT-23-6 package.

Applications

  • Notebook Computers
  • VID Power Supplies
  • PDAs
  • Cell Phones
  • Low-Dropout Regulators with External Bias Supply
  • Networked Communication
Key Spec.
RT9041C RT9041D
Status Active Active
Vin (min) (V) 1 1
Vin (max) (V) 5.5 5.5
Vout (min) (V) 0.8 0.8
Vout (max) (V) 2.5 2.5
Output Adj. Method Fixed Fixed;Resistor
Accuracy (+/- %) 1 1
Iout (max) (mA) 500 500
Iq (typ) (uA) 160 160
Vdropout @ rated current (typ) (mV) 300 @ 0.5A 300 @ 0.5A
Cout Type Ceramic Ceramic
Features Enable Input;OCP;Power Good;Stable with Ceramic Capacitor Enable Input;OCP;Power Good;Stable with Ceramic Capacitor
Package Type SOT-26 SOT-26
Features
  • ±1% Output Voltage Accuracy
  • No Minimum Load Current Required
  • 1V to 5.5V Input Supply Voltage
  • 3V to 5.5V Input Bias Supply Voltage
  • PGOOD Open-Drain Output (RT9041C)
  • Support both Fixed/Adjustable Mode (RT9041D)
  • Low Supply Current
  • 5μA (max) Shutdown Supply Current
  • RoHS Compliant and Halogen Free
Datasheet
TitleLast UpdateShareDownload
500mA, Low Voltage, LDO Regulator with External Bias Supply2010/03/19
Reliability
Title Last Update ShareDownload
500mA, Low Voltage, LDO Regulator with External Bias Supply 2015/05/19
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