CM2855 Datasheet, PDF (1/10 Pages) List of Unclassifed Manufacturers – 300MA CMOS LDO WITH EN & PG

CM2855
300mA CMOS LDO WITH EN & PG
GENERAL DESCRIPTION
FEATURES
The CM2855 family is positive, linear regulators featured low
quiescent current (30µA typ.) with low dropout voltage,
making them ideal for battery applications. The space-saving
SOT-23-6 package is attractive for “Pocket” and “Hard Held”
applications.
These rugged devices have both Thermal Shutdown, and
Current Fold-back to prevent device failure under the “Worst”
of operating conditions.
An additional feature is a “Power Good” detector, which pulls
low when the output is out of regulation.
Very Low Dropout Voltage
Low Current Consumption: Typ. 30µA, Max. 35µA
High Accuracy Output Voltage: +/- 2.5%
Guaranteed 300mA Output
Input Range of 2.6V to 7.0V
Thermal Shutdown
Current Limiting
Power Good Output Function
Compact Package: SOT-23-6
Adjustable Output Voltages
Short Circuit Current Fold-Back
Low Temperature Coefficient
The CM2855 is stable with an output capacitance of 2.2µF or
greater.
APPLICATIONS
Battery-powered devices
Personal communication devices
Home electric/electronic appliances
PC peripherals
TYPICAL APPLICATIONS
IN
IN
OUT
OUT
EN CM2855
PG GND ADJ
C1
5V
1uF
C3
2.2uF
Note: 1. Suggest to add a small Cap 100pF between OUT and connection of R1and R2 to get less VOUT ripple
Vout = Vref * (1 + R1/R2); Vref = 1.176V
2. Enable pin can not be floating.
2004/6/01 Rev. 1.2
Champion Microelectronic Corporation
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