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Torex Semiconductor - 300mA Small High Speed Dual LDO Regulator

Numéro de référence XC6421
Description 300mA Small High Speed Dual LDO Regulator
Fabricant Torex Semiconductor 
Logo Torex Semiconductor 





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XC6421 fiche technique
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XC6421 Series
ETR0353-003
300mA Small High Speed Dual LDO Regulator, Built-in Inrush Current Protection
GENERAL DESCRIPTION
The XC6421 series is an ultra small CMOS dual LDO regulator, mounting 300mA 2-channel small high speed LDO.
The series features high accuracy, high ripple rejection and low dropout voltage.
The series is capable of high density board installation by the ultra small package of two low on-resistance regulators. Both
output accuracies are ±1% by laser trimming.
Each regulator can be turned off independently to be in stand-by mode by controlling EN pin.
In this state, the electric charge at the output capacitor (CL) is discharged via the internal auto-discharge switch, and as a result
the VOUT voltage quickly returns to the VSS level.
The output stabilization capacitor (CL) is also compatible with low ESR ceramic capacitors.
The high level of output stability is maintained even during frequent load fluctuations, due to the excellent transient response
performance.
Over current protection circuit and over heat protection circuit are mounted, these circuits start working when output current
reaches junction temperature or limit current.
The two regulators are completely isolated so that a cross talk during load fluctuations is minimized
APPLICATIONS
Mobile phones
Portable game consoles
Portable multimedia player
Digital still cameras, Camcorders
FEATURES
Maximum Output Current
: 300mA
Operating Voltage Range
: 1.6V5.5V
Output Voltages
: 1.2V3.6V (0.05V increments)
Output Accuracy
Dropout Voltage
Low Power Consumption
: ±1% (VOUT2.00V)
±20mV(VOUT1.95V)
: 210mV@IOUT=300mA VOUT=3.0V
: 90μA / ch (TYP.)
Stand-by Current
: 0.1μA
Ripple Rejection
: 75dB@1kHz
ON/OFF Control
: Active High
Protection
CL Discharge
Current Limit 450mA (TYP.)
Short Circuit 125mA (TYP.)
Inrush Current Protection
Thermal Shutdown
Low ESR Capacitor
: 1.0μF Ceramic Capacitor
Operating Ambient Temperature : -40℃ ~ +85
Package
: USP-6C
Environmentally Friendly
: EU RoHS Compliant, Pb Free
TYPICAL APPLICATION CIRCUITS
TYPICAL PERFORMANCE
CHARACTERISTICS
100
XC6421(VOUT=1.8V)
VIN=3.0V+0.5Vp-pAC, Ta=25℃
CIN=0.1μF(ceramic), CL=1.0μF(ceramic)
80
60
40
20
0
0.1
IOUT=0.1mA
IOUT=1mA
IOUT=30mA
IOUT=100mA
1 10 100
Ripple Frequency : f (kHz)
1000
1/24
Datasheet pdf - http://www.DataSheet4U.net/

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