XC6237  0.6µA Low IQ, High Speed LDO with Green Operation


Incorporating our proprietary ‘Green Operation’ (GO) technology, the XC6237 sets a new benchmark for high performance linear regulators.

By combining ultra-low quiescent current with high ripple rejection and fast transient response the XC6237 is a truly versatile linear regulator suitable for a wide range of applications.


  • Ultra-Low Quiescent Current
    • 0.6μA in Power Save Mode
  • High Power Supply Ripple Rejection
    • 60dB @ f=1kHz in High Speed Mode
  • Lower Dropout Voltage
    • 165mV typ. (Vout=3.0V @ 150mA)
  • Ultra-Small, Low Profile Package
    • 1.0 x 1.0 x 0.33mm
  • Extended Temperature Range
    • -40oC ~ +105oC


Series XC6237
Output Current 150mA
Dropout Voltage  165mV (Vout=3V@150mA)
Output Voltage Range 1.6V ~ 6.0V
Output Voltage Accuracy  +1.0% (Ta=25oC)
Quiescent Current (typ.) 0.6μA
Standby Current  0.01μA
Ripple Rejection 60dB@1kHz
Protection Circuits Current Limit, Short Circuit
Package USPQ-4B05, SSOT-24, SOT-23

Green Operation 


The XC6237 incorporates our Green Operation function (GO). GO automatically switches between a high-speed mode (HS) and a power save mode (PS) depending upon the load current level. The switch point is fixed internally.

Our GO circuit automatically reduces quiescent current at low output loads down to only 0.6µA, whilst offering extremely fast ripple rejection (60dB @ 1kHz) and low dropout voltage in high speed mode.


High Speed Mode 

When in High Speed Mode, the XC6237 features a High Ripple Rejection (PSRR) and a Fast Load Transient Response. 




Compatible Products 

Utilising the same pin configuration the XC6237 is the ideal upgrade for our existing low power LDOs as shown in the table below. 

Series XC6237 XC6504 XC6215 XC6206*
Output Current  150mA 150mA 200mA 200mA
Dropout Voltage  165mV
Input Voltage Range  1.6V ~ 6.0V 1.4V ~ 6.0V 1.5V ~ 6.0V 1.8V ~ 6.0V
Output Voltages 1.2V ~ 5.0V 1.1V ~ 5.0V 0.9V ~ 5.0V 1.2V ~ 5.0V
Quiescent Current  0.6μA 0.6μA 0.8μA 1μA
Standby Current 0.01μA 0.01μA 0.1μA -
Ripple Rejection 60dB@1kHz - - -
Protection Circuits Current Limit,
Short Circuit Protection
Current Limit,
Short Circuit Protection
Current Limit Current Limit 



(Pin-out Compatible)

USPQ-4B05 USPQ-4B04 - -
SOT-23 - - SOT-23





*Please note that the XC6237 is not Pin out compatible with the XC6206. This product is included in the comparison table as the XC6237 still serves as a great upgrade for the XC6206 and is available in the same package.