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XC6503 Datasheet, PDF (9/26 Pages) Torex Semiconductor – CL Capacitor-Less 500mA Low Power Consumption High Speed LDO Regulator
XC6503
Series
■ NOTES ON USE
1. For temporary, transitional voltage drop or voltage rising phenomenon, the IC is liable to malfunction should the ratings be
exceeded.
2. The XC6503 series operates even if without attaching an output capacitor. However, when wiring impedance is high,
operations may become unstable due to noise and/or phase lag depending on output current. Please wire the input
capacitor (CIN) and the output capacitor (CL) as close to the IC as possible.
3. The XC6503 installs fold-back current limit circuits. When start-up, this fold-back load curve affects its start-up
characteristics. The XC6503 having output current under 2.4V may not happen to start-up with the load conditions below.
In these cases, sequence control should be taken for connecting a load after the start-up execution.
Load Condition for Start-up:IOUT ≧ VOUT(T)/4.8
VOUT(T):Nominal Output Voltage
3.2
XC6503x281
2.8
CIN=CL=0.1μF(ceramic),VIN=VOUT+1V
2.4
2.0
1.6
XC6503x121
1.2
Start-up defect area which
it may happen.
0.8
0.4
0.0
0 100 200 300 400 500 600 700
●CONDITION
NOMINAL VOLTAGE
1.2V
1.5V
1.8V
LOAD CONDITION FOR START-UP
≦250mA
≦312mA
≦375mA
OutputCurrent : IOUT (mA)
4. Torex places an importance on improving our products and its reliability.
However, by any possibility, we would request user fail-safe design and post-aging treatment on system or equipment.
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