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The RT9074 family are high voltage (60V operation), low quiescent current low dropout linear regulators capable of supplying 100mA of output current with a maximum dropout voltage of 400mV. The low quiescent and shutdown currents (30μA operating and 2μA shutdown) are ideal for use in battery-powered and/or high voltage systems. Ground current is well-controlled in all conditions, including dropout.

The RT9074 family operates with any reasonable output capacitors including 1μF low-ESR ceramic types and features excellent line and load transient responses. Internal protection circuitry includes reverse-battery protection, current limiting, thermal shutdown, and reverse current protection. Output voltage accuracy is ±3% over the entire line and load range.

These devices are available in 3 fixed-output versions (2.5V, 3.3V, 5V) as well as a version that supports an adjustable output voltage (1.23V to 60V). All versions come in SOP-8 package with an exposed pad for high power dissipation. The fixed output versions are also available packaged in SOT-223.

Applications

  • Low Current, High Voltage Regulators
  • Battery Powered Applications
  • Telecom and Datacom Applications
  • Automotive Application
Key Spec.
RT9074
Status Active
Vin (min) (V) 4.5
Vin (max) (V) 60
Vout (min) (V) 1.23
Vout (max) (V) 60
Output Adj. Method Fixed;Resistor
Accuracy (+/- %) 3
Iout (max) (mA) 100
Iq (typ) (uA) 30
Vdropout @ rated current (typ) (mV) 15 @ 0.001A;240 @ 0.1A;55 @ 0.01A
Bias Rail No
Cout Type Aluminum;Ceramic;Tantalum
Charge Pump No
Features Enable Input;High PSRR;Low Dropout;OCP;SCP;Stable with Ceramic Capacitor
Package Type PSOP-8;SOT-223
Features
  • Wide Input Voltage Range : 4.5V to 60V
  • Low Quiescent Current : 30μA Operating and 2μA Shutdown
  • Low Dropout Voltage : 400mV Maximum at 100mA
  • Fixed (2.5V, 3.3V, 5V) and Adjustable (1.23V to 60V) Versions
  • ±3% Output Tolerance
  • Stable with 1μF Output Capacitor (Aluminum, Tantalum or Ceramic)
  • Inherent Reverse-Current Protection (No diode needed)
  • -60V Reverse-Battery Protection
Datasheet
TitleLast UpdateShareDownload
60V, 30μA IQ, Low Dropout Voltage Linear Regulator2015/03/31
Technical Documents
TitleLast UpdateShareDownload
Powering Microcontrollers from Industrial Supply Rails2022/11/30
Richtek Selection Guide [Oct., 2022]2022/11/03
Evaluation Boards
TitleLast UpdateShareDownload
60V, 30µA IQ, Low Dropout Voltage Linear Regulator2021/01/21
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