• Wide Input Range: 3V-40V

• With up to 45V Transient Input Voltage

• Maximum Output Current : 300mA

• Output Voltage:

• 3.3V 5V (Fixed Output)

• 1.2V, 1.8V, 2.5V, 3V, 4.2V 4.5V(Need contact SCT sales)

• Output Voltage Accuracy:

• T=25℃ : ±1%

• T= -40℃~ 125℃ : ±2%

• Low Quiescent Current : 2.4uA

• Low Dropout Voltage :

• 230mV at 100mA load current

• 470mV at 200mA load current

• Support Output Capacitors Range:

• 3.3uF~220uF

• Low-ESR : 0.001Ω~ 5 Ω

• 550us Internal Soft-start Time

• Integrated Short-Circuit Protection with OCFB(Over Current Fold-back) Feature

• Precision Enable Threshold for Programmable Input Voltage Under-Voltage Lock Out Protection(UVLO) Threshold Hysteresis

• Power-Good Feature is available

• Over-Temperature Protection

• Available Package:SOT23-5 / TDFN2x2-6 / eMSOP3x3-8 /TDFN3x3-8


SCT71403 series products is a low-dropout linear regulator designed to operate with a wide input-voltage range from 3 V to 40V (45V transient input voltage) 300mA output current with enable control Power-Good feature. The SCT71403 series products is stable with 3.3uF~220uF output capacitors, 10uF ceramic capacitor is recommended.Only 2.4-μA typical quiescent current at light load makes the SCT71403 series products ideal choices for portable devices with battery power supply anoptimal solution for powering microcontrollers (MCUs) CAN/LIN transceivers in always-on systems.The SCT71403 series products implements power good circuit (PG) which indicates that output voltage is in regulation. This signal could be used for power sequencing or as a microcontroller reset.The SCT71403 series products integrated short-circuit overcurrent protection, which makes the device more reliable during transient high-load current faults or shorting events.The SCT71403 series products provide fixed 3.3V 5V output voltage versions, also could provide 1.2V, 1.8V, 2.5V, 3V, 4.2V 4.5V fixed output voltage versions, please contact SCT sales if needed.The SCT71403 series products is available in SOT23-5,TDFN2x2-6, TDFN3x3-8 eMSOP3x3-8 package, for other package options, please contact SCT sales.


• Automotive Head Units
• Headlights
• Body Control Modules
• Inverter Motor Controls