LOW DROPOUT VOLTAGE REGULATOR 
 
 
 
 
  
DESCRIPTION  
 
  
The UTC LD3870 is low dropout voltage regulator designed  
for cellular phone application. 
 
 
 
  
FEATURES 
  
* High Ripple Rejection: 56dB≤RR(DC<f<60kHz)  
66dB typ. (f=100Hz)  
60dB typ. (f=1kHz)  
* Output Noise Voltage: eN=30ΜV , Cp=0.01μF  
* Output Current: IO(MAX)=150mA  
* High Precision Output: VO±2%  
* Low Dropout Voltage: VD=0.12V typ. (IO=60mA,Vo≥1.8V)  
* Input Voltage range: +2~+14V(VO =1.5V Version)  
* ON/OFF Control: Active High  
* Output capacitor with 4.7uF ceramic capacitor  
* Internal Short Circuit Current Limit  
* Internal Thermal Overload Protection   |