XC6204/XC6205
Series
■TYPICAL
APPLICATION CIRCUIT
■OPERATIONAL
EXPLANATION
Output voltage control with the XC6204/6205 series:
The voltage divided by resistors R1 & R2 is compared with the internal
reference voltage by the error amplifier.
The P-channel MOSFET, which is connected to the V
OUT
pin, is then
driven by the subsequent output signal. The output voltage at the V
OUT
pin is controlled & stabilized by a system of negative feedback.
The current limit circuit and short protect circuit operate in relation to the
level of output current. Further, the IC's internal circuitry can be
shutdown via the CE pin's signal.
< Low ESR Capacitors >
With the XC6204/05 series, a stable output voltage is achievable even if used with a low ESR capacitor as a phase
compensation circuit is built-in. In order to ensure the effectiveness of the phase compensation, we suggest that an output
capacitor (C
L
) is connected as close as possible to the output pin (V
OUT
) and the V
SS
pin. Please use an output capacitor
with a capacitance value of at least 1μF. Also, please connect an input capacitor (C
IN
) of 0.1μF between the V
IN
pin and the
V
SS
pin in order to ensure a stable power input.
●
Recommended output capacitor values
V
OUT
0.9V ~ 1.2V
1.25V ~ 1.75V
CL
4.7μF
2.2μF
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TOREX [ TOREX SEMICONDUCTOR ]
