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參數資料
| 型號： | CM2730 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 300mA DUAL LOW NOISE CMOS LDO |
| 中文描述： | 300mA的雙低噪聲CMOS低壓 |
| 文件頁數： | 1/10頁 |
| 文件大小： | 267K |
| 代理商： | CM2730 |
CM2730
300mA D
UAL
L
OW
N
OISE
CMOS LDO
GENERAL DESCRIPTION
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.
APPLICATIONS
!
Battery-powered devices
!
Personal communication devices
!
Home electric/electronic appliances
!
PC peripherals
PIN CONFIGURATION
2002/09/30
Preliminary
Rev. 0.3
Champion Microelectronic Corporation
Page 1
FEATURES
!
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
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
1
2
3
4
8
7
6
5
GND
VOUT1
VIN1
ENB
VFB2
VOUT2
VIN2
PGB
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