CM2833
300mA CMOS LDO WITH ENABLE
2003/11/20 Rev. 1.2
Champion Microelectronic Corporation
Page 1
GENERAL DESCRIPTION
FEATURES
The CM2833 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 devices 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 CM2833 is stable with an output capacitance of 2.2µF or
greater.
!
Very Low Dropout Voltage
!
Low Current Consumption: Typ. 30µA, Max. 35µA
!
Output Voltage: 1.8V, 1.9V, 2.2V, 2.5V, 2.7V, 2.8V, 3.0V,
3.3V, 3.5V, 3.6V, and 3.8V
!
High Accuracy Output Voltage: +/- 1.5%
!
Guaranteed 300mA Output
!
Input Range up 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
APPLICATIONS
!
Battery-powered devices
!
Personal communication devices
!
Home electric/electronic appliances
!
PC peripherals
24 Hours Technical Support--WebSIM
Champion provides customers an online circuit simulation tool
called WebSIM. You could simply logon our website at
www.champion-micro.com for details.
TYPICAL APPLICATIONS
IN
O UT
C M 2833
BYP
G ND
EN
IN
OU T
5V
C1
1u F
C3
2.2u F
C2
1n F
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