XC6415 Series
ETR0332-007
Dual LDO Regulator with ON/OFF Switch
■GENERAL DESCRIPTION
The XC6415 series is a highly accurate, CMOS Dual LDO voltage regulator. Performance features include low output noise,
high ripple rejection rate, and low dropout. Extremely dense power supply circuit can be organized with a 2 channeled high
speed voltage regulator in low ON resistance which is built-in to an ultra small USP-6C package. The output voltage for each
regulator is set independently by laser trimming and selectable in 0.05V increments within a range of 0.8 to 5.0V. The EN
function allows the output of each regulator to be turned off independently. In this state, the electric charge at the output
capacitor (CL) will be discharged via the internal auto-discharge switch, and as a result the VOUT pin 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. Because
regulator 1 and 2 are completely isolated, a cross talk between each channel, which causes a problem during load fluctuations,
can be greatly reduced.
■APPLICATIONS
■FEATURES
Output Current
Dropout Voltage
● Mobile phones
● Cordless phones, Wireless communication equipment
● Portable game consoles
● Digital still cameras, Digital video cameras
● Portable audio equipment
● PDAs
■TYPICAL APPLICATION CIRCUITS
: 200mA (300mA limit, TYP.)
: 95mV @ IOUT=100mA
VOUT=3.0V
Operating Voltage Range
: 1.5V~6.0V
Output Voltage Range
: 0.8V~5.0V
(0.05V increments)
High Accuracy
: + 1% @ VOUT>2.0V
+ 2% @ VOUT≧1.5V
+ 20mV @VOUT<2.0V
+ 30mV @VOUT<1.5V
Low Power Consumption
: 28μA/ch (TYP.)
Stand-by Current
: Less than 0.1μA
Ripple Rejection
: 65dB@1kHz
Operating Temperature Range : - 40OC ~ 85OC
Low ESR Capacitor
: 1.0μF ceramic capacitors
Packages
: USP-6C, SOT-26, USPN-6
Environmentally Friendly
: EU RoHS Compliant, Pb Free
■TYPICAL PERFORMANCE
CHARACTERISTICS
6
1
● Cross Talk
XC6415(VOUT1=3.3V, VOUT2=2.5V)
5
250
Output Voltage(VR1) : VOUT (V)
4
3
3.35
200
Output Voltage(VR1 : 10mA)
3.30
3.25
150
Output Current
(VR2 : 0.1mA→50mA)
3.20
100
50
3.15
Output Current(VR2) : IOUT
(mA)
2
3.40
VIN=4.3V, tr=tf=5μS, Ta=25℃
IOUT2=0.1→50mA, CIN=CL1=CL2=1.0μF(ceramic)
0
Time (200uS/div)
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