RT9193

300mA, Ultra-Low Noise, Ultra-Fast CMOS LDO Regulator

RT9193
New

The RT9193 is designed for portable RF and wireless applications with demanding performance and space requirements. The RT9193 performance is optimized for battery-powered systems to deliver ultra low noise and low quiescent current. A noise bypass pin is available for further reduction of output noise. Regulator ground current increases only slightly in dropout, further prolonging the battery life. The RT9193 also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices. The RT9193 consumes less than 0.01μA in shutdown mode and has fast turn-on time less than 50μs. The other features include ultra low dropout voltage, high output accuracy, current limiting protection, and high ripple rejection ratio. Available in the SC-70-5, SOT-23-5, TSOT-23-5, WDFN-6L 2x2 and MSOP-8 packages.

Applications

  • CDMA/GSM Cellular Handsets
  • Battery-Powered Equipment
  • Laptop, Palmtops, Notebook Computers
  • Hand-Held Instruments
  • PCMCIA Cards
  • Portable Information Appliances

Key Spec.

RT9193
Status Active
Vin (min) (V) 2.5
Vin (max) (V) 5.5
Vout (min) (V) 1.5
Vout (max) (V) 5
Output Adj. Method Fixed
Accuracy (+/- %) 2
Iout (max) (mA) 300
Iq (typ) (uA) 90
Vdropout @ rated current (typ) (mV) 220 @ 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;SOT-25;TSOT-25;WDFN2x2-6;SC-70-5

Features

  • Ultra Low Noise for RF Application

  • Ultra Fast Response in Line/Load Transient

  • Quick Start-Up (Typically 50μs)

  • <0.01μA Standby Current When Shutdown

  • Low Dropout : 220mV @ 300mA

  • Wide Operating Voltage Ranges : 2.5V to 5.5V

  • TTL-Logic-Controlled Shutdown Input

  • Low Temperature Coefficient

  • Current Limiting Protection

  • Thermal Shutdown Protection

  • Only 1μF Output Capacitor Required for Stability

  • High Power Supply Rejection Ratio

  • Custom Voltage Available

  • RoHS Compliant and 100% Lead (Pb)-Free

Datasheet

RT9193-15GB
Package Type:SOT-25
RT9193-18GB
Package Type:SOT-25
RT9193-18GQW
Package Type:WDFN2x2-6
RT9193-25GB
Package Type:SOT-25
RT9193-28GB
Package Type:SOT-25
RT9193-30GB
Package Type:SOT-25
RT9193-33GB
Package Type:SOT-25
RT9193-33GF
Package Type:MSOP-8