XC6204_004 Datasheet, PDF (17/49 Pages) Torex Semiconductor – High Speed LDO Regulators Output ON-OFF Control

˙TYPICAL APPLICATION CIRCUIT
XC6204/XC6205
Series
˙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 VOUT pin, is then
driven by the subsequent output signal. The output voltage at the VOUT
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 (CL) is connected as close as possible to the output pin (VOUT) and the VSS pin. Please use an output capacitor
with a capacitance value of at least 1ЖF. Also, please connect an input capacitor (CIN) of 0.1ЖF between the VIN pin and the
VSS pin in order to ensure a stable power input.
˔ Recommended output capacitor values
VOUT
0.9V ~ 1.2V
1.25V ~ 1.75V
CL
4.7ЖF
2.2ЖF
17/49