参数资料
型号: XC6204B69AML
厂商: TOREX SEMICONDUCTOR LTD.
英文描述: (Can be used with low ESR Capacitor Compatible. ON-OFF Switch) High Speed LDO Regulators
中文描述: (可使用低ESR电容兼容。的ON - OFF开关)高速LDO稳压器
文件页数: 12/28页
文件大小: 1133K
代理商: XC6204B69AML
268
3
<Low ESR Capacitors>
With the XC6204 series, a stable output voltage is achievable even if used with low ESR capacitors 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 1
μ
F. Also, please connect an input
capacitor (C
IN
) of 0.1
μ
F between the V
IN
pin and the V
SS
pin in order to ensure a stable power input.
°
C
μ
μ
<Current Limiter, Short-Circuit Protection>
The XC6204 series includes a combination of a fixed current limiter circuit & a foldback circuit which aid the operations of the current limiter and
circuit protection. When the load current reaches the current limit level, the fixed current limiter circuit operates and output voltage drops. As a
result of this drop in output voltage, the foldback circuit operates, output voltage drops further and output current decreases (refer to the data on
page 5). When the output pin is shorted, a current of about 60mA flows.
<CE Pin>
The IC's internal circuitry can be shutdown via the signal from the CE pin with the XC6204 series. In shutdown mode, output at the V
OUT
pin will
be pulled down to the V
SS
level via R1 & R2. The operational logic of the IC's CE pin is selectable (please refer to the selection guide on page
2). Note that as the standard XC6204B type is
' High Active/No Pull Down'
, operations will become unstable with the CE pin open. Although the
CE pin is equal to an inverter input with CMOS hysteresis, with either the pull-up or pull-down options, the CE pin input current will increase
when the IC is in operation.
We suggest that you use this IC with either a V
IN
voltage or a V
SS
voltage input at the CE pin. If this IC is used with the correct specifications for
the CE pin, the IC will operatenormally. However, supply current may increase as a result of through current in the IC's internal circuitry if a
voltage between 0.25V and 1.5V is input.
G
Notes on Use
1.Please use this IC within the stated absolute maximum ratings. The IC is liable to malfunction should the ratings be exceeded.
2.Where wiring impedence is high, operations may become unstable due to noise and/or phase lag depending on output current.
Please strengthen V
IN
and V
SS
wiring in particular.
3.Please wire the input capacitor (C
IN
) and the output capacitor (C
L
) as close to the IC as possible.
Output voltage control with the XC6204 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 ouput voltage at the V
OUT
pin is controlled &
stabilised 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.
相关PDF资料
PDF描述
XC6204B69AMR (Can be used with low ESR Capacitor Compatible. ON-OFF Switch) High Speed LDO Regulators
XC6204B69BDL (Can be used with low ESR Capacitor Compatible. ON-OFF Switch) High Speed LDO Regulators
XC6204B69BDR (Can be used with low ESR Capacitor Compatible. ON-OFF Switch) High Speed LDO Regulators
XC6204B69BML (Can be used with low ESR Capacitor Compatible. ON-OFF Switch) High Speed LDO Regulators
XC6204D071DL (Can be used with low ESR Capacitor Compatible. ON-OFF Switch) High Speed LDO Regulators
相关代理商/技术参数
参数描述
XC6204C332MRN 制造商:Torex Semiconductor LTD 功能描述:
XC6204C502MRN 制造商:Torex Semiconductor LTD 功能描述:
XC6204F332PRN 制造商:Torex Semiconductor LTD 功能描述:
XC6204F502PRN 制造商:Torex Semiconductor LTD 功能描述:
XC6206P122MRN 制造商:Torex Semiconductor LTD 功能描述: