The JC54XXB series is a high input voltage (45V),

low quiescent current (2.1uA), low‐dropout linear

regulator (LDO) able to provide 350mA load

current. The JC54XXB family LDO offers EN pin to

enable and disable the LDO output, EN pin can

take 45V input

   

voltage.

The LDO features very fast response against line

voltage transient and load current transient, and

ensures no overshoot voltage during the LDO start

up and short circuit recovery.   

The device features integrated short‐circuit and

thermal shutdown protection.

The device is available with fixed output voltages

of 1.8V, 3.0V, 3.3V and 5.0V, and available in

SOT23 and SOT89 packages.

 Application

 Battery‐powered equipment

 Smoke detector and sensor

 Micro controller Applications

 Home Appliance

 Application Circuits

 Features   

 Low Quiescent Current：2.1uA

 High Input Voltage Rating：Up to 55V

 High Output Current：350mA

 High PSRR：85dB at 1Khz

 Low Dropout Voltage：

35mV@10mA

350mV@100mA

 Fixed Output Voltages：   

1.8V, 3.0V, 3.3V and 5.0V

 High‐accuracy Output Voltage: A: ±1% /B: ±2%

 Fast Transient Response

 Integrated Short‐Circuit Protection

 Enable pin is available

 Integrated Thermal Protection

 Available Packages：

JC54XXBTE 

JC54XXBTE‐A 

JC54XXBTE‐B 

JC54XXBTE‐C 

  SOT23‐3 

JC54XXBTS 

JC54XXBTS‐A 

JC54XXBTS‐B 

JC54XXBTS‐C 

SOT89‐3 

JC54XXBTG  SOT23‐5