XC6415 Datasheet, PDF (1/23 Pages) Torex Semiconductor – Dual LDO Regulators with ON/OFF Switch

XC6415 Series
Dual LDO Regulators with ON/OFF Switch
ETR0332-006a
■GENERAL DESCRIPTION
XC6415 series are highly accurate, Dual, low noise, CMOS LDO voltage regulators. Performance features of the series 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, with the XC6415 series, the IC
turns on the internal switch located between the V_OUT and the V_SS pins. This short enables the electric charge at the output
capacitor (C_L) to be discharged via the internal auto-discharge resistance, and as a result the V_OUT pin quickly returns to the V_SS
level. The series’ output stabilization capacitor (C_L) 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
● Mobile phones
● Cordless phones, Wireless communication equipment
● Portable games
● Digital still cameras, Digital video cameras
● Portable audio equipment
● PDAs
■FEATURES
Output Current
: 200mA (300mA limit, TYP.)
Dropout Voltage
Operating Voltage Range
: 95mV @ I_OUT=100mA
V_OUT(T)=3.0V
: 1.5V~6.0V
Output Voltage Range
: 0.8V~5.0V
(0.05V increments)
High Accuracy
Low Power Consumption
: + 1% @ V_OUT>2.0V
: + 2% @ V_OUT≧1.5V
: + 20mV @V_OUT<2.0V
: + 30mV @V_OUT＜1.5V
: 28μA/ch (TYP.)
Stand-by Current
: Less than 0.1μA
Ripple Rejection
: 65dB@1kHz
Operating Temperature Range: - 40^OC ~ 85^OC
Low ESR Capacitor
: 1.0μF ceramic capacitor
compatible
Small Packages
: USP-6C, SOT-26, USPN-6
■TYPICAL APPLICATION CIRCUITS
■TYPICAL PERFORMANCE
CHARACTERISTICS
● Cross Talk
XC6415(V_OUT1=3.3V, V_OUT2=2.5V)
3.40
V_IN=4.3V, tr=tf=5μS, Ta=25℃
I_OUT2=0.1→50mA, C_IN=C_L1=C_L2=1.0μF(ceramic)
250
3.35
200
Output Voltage(VR1 : 10mA)
3.30
150
3.25
100
Output Current
（VR2 : 0.1mA→50mA)
3.20
50
3.15
0
Time (200uS/div)
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