CM2730 Datasheet, PDF (1/10 Pages) List of Unclassifed Manufacturers – 300mA DUAL LOW NOISE CMOS LDO

CM2730
300mA DUAL LOW NOISE CMOS LDO
GENERAL DESCRIPTION
FEATURES
The CM2730 dual LDO family are positive linear voltage
!
regulators developed utilizing CMOS technology. CM2730
!
contains two LDOs, one with pre-set output voltage (master !
LDO1), the other with adjustable output voltage (slave LDO2). !
Each LDO owns its input voltage, bandgap reference voltage,
and protection circuit, which reduce noise and cross talk
!
between two LDOs. This dual LDO family is featured low
!
quiescent current (60µA typ.), low dropout voltage, and high !
output voltage accuracy. Built-in low on-resistance transistor !
provides low dropout voltage and large output current. 2.2µF !
or greater can be used as an output capacitors.
!
!
The PTSSOP-8 package is recommended for configuring
!
portable devices and large current application, respectively. !
!
These robust devices are designed to prevent device failure !
under the worst operation condition with both Thermal
!
Shutdown and Current Fold-back.
Very Low Shutdown Current < 2.0µA
Very Low Dropout Voltage: 300mV @ 300mA
Low Current Consumption: Typ. 60µA, Max. 70µA
Output Voltage: master LDO1 fixed at 2.5V or 3.3V, and
the slave LDO2 adjustable voltage
Output Current Range: 0mA ~ 300mA per LDO
PTSSOP-08 Package with Power Pad
High Accuracy Output Voltage: +/- 1.5%
Input Range of 2.6V to 7.0V
Independent Thermal Shutdown
Power Sequence
Power Good Output Function
Independent Bandgap
Current Limiting
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
PIN CONFIGURATION
1
2
3
4
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.
PTSSOP-08 (PT-08)
Front View
GND
VFB2
8
VOUT1
VOUT2
7
VIN1
VIN2
6
ENB
PGB
5
2002/09/30 Preliminary Rev. 0.3
Champion Microelectronic Corporation
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