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The RT9167B is a 300mA low dropout and low noise micropower regulator suitable for portable applications. The output voltages range from 1.5V to 5V in 100mV increments and 2% accuracy. The RT9167B is designed for use with very low ESR capacitors. The output remains stable even with 1μF ceramic output capacitor.

The RT9167B uses an internal PMOS as the pass device, which does not cause extra GND current in heavy load and dropout conditions. The shutdown mode with nearly zero operation current makes the IC suitable for battery-powered devices. Other features include a reference bypass pin to improve low noise performance, current limiting, and over temperature protection.

Applications

  • Cellular Telephones
  • Laptop, Notebook, and Palmtop Computers
  • Battery-powered Equipment
  • Hand-held Equipment
Key Spec.
RT9167B
Status Active
Vin (min) (V) 2.7
Vin (max) (V) 7
Vout (min) (V) 1.5
Vout (max) (V) 5
Output Adj. Method Fixed
Accuracy (+/- %) 2
Iout (max) (mA) 300
Iq (typ) (uA) 80
Vdropout @ rated current (typ) (mV) 350 @ 0.3A
Cout Type Ceramic
Features Enable Input;Extra Low Noise;High PSRR;Low Dropout;OCP;Output Discharge;Stable with Ceramic Capacitor
Package Type MSOP-8
Features
  • Stable with Low-ESR Output Capacitor
  • Low Dropout Voltage (350mV @ 300mA)
  • Low Operation Current -80μA Typical
  • Shutdown Function
  • Low Noise Output
  • Low Temperature Coefficient
  • Current and Thermal Limiting
  • Custom Voltage Available
  • MSOP-8 Package
  • RoHS Compliant and 100% Lead (Pb)-Free
Please confirm with our distributor or sales representative for actual stock status.
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