CM2831

Features:

Very Low Dropout Voltage
Low Current Consumption: Typ. 30µA, Max. 35µA
  Output Voltage: 1.5V, 1.8V, 1.9V, 2.2V, 2.5V, 2.7V, 2.8V, 2.9V, 3.0V, 3.3V, 3.5V, 3.6V, and 3.8V
High Accuracy Output Voltage: +/- 1.5%
Guaranteed 300mA Output
Input Range of 2.6V to 7.0V
Thermal Shutdown
  Current Limiting
Compact Package: SOT-23-5
  Factory Pre-set Output Voltages
  Short Circuit Current Fold-Back
  Low Temperature Coefficient


Application

Battery-powered devices
Personal communication devices
Home electric/electronic appliances
PC peripherals


Pinout




Specifications

Input Voltage   .................. +7V
Output Current  ...........   PD / (V_IN - Vo) mA
Output Voltage   ........ GND-0.3V to VIN+0.3V
ESD Classification  ................ B
Ambient Temperature Range (TA) ..... -40 to +85
Junction Temperature Range   ....... -40 to +125 
 


Description

The CM2831 family is a positive voltage linear regulator developed utilizing CMOS technology featured low quiescent current (30µA typ.), low dropout voltage, and high output voltage accuracy, making them ideal for battery applications. EN input connected to CMOS has low bias current. The space-saving SOT-23-5 package is attractive for "Pocket" and "Hand Held" applications.
 
These rugged CM2831 have both Thermal Shutdown, and Current Fold-back to prevent device failure under the "Worst" of operating conditions.
 
In application requiring a low noise, regulated supply, place a 1000pF capacitor between Bypass and Ground.
 
The CM2831 is stable with an output capacitance of 2.2µF or greater.