參數(shù)資料
型號(hào)： XC6211E09APR
廠(chǎng)商： TOREX SEMICONDUCTOR LTD.
元件分類(lèi)： 基準(zhǔn)電壓源/電流源
英文描述： High Speed LDO Regulators, Low ESR Cap. Compatible, ON/OFF Switch
中文描述： 高速LDO穩(wěn)壓器，低ESR電容。兼容，ON/OFF開(kāi)關(guān)
文件頁(yè)數(shù)： 8/23頁(yè)
文件大?。?/td> 1740K
代理商： XC6211E09APR
8/23
XC6219/6211
Series
■
OPERATIONAL EXPLANATION
<Output Voltage Control>
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 and 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 XC6209/6212 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.
Stable phase compensation may not be ensured if the capacitor runs out capacitance when depending on bias and
temperature. In case the capacitor depends on the bias and temperature, please make sure the capacitor can ensure the
actual capacitance.
<Current Limiter, Short-Circuit Protection>
The XC6219/6211 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. When the output pin is shorted, a current of about 50mA flows.
<CE Pin>
The IC's internal circuitry can be shutdown via the signal from the CE pin with the XC6219/6211 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). Note that as the standard XC6219/6211B type's regulator 1 and 2 are both ' 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 operational logic is fixed and the IC will operate normally. However, supply
current may increase as a result of through current in the IC's internal circuitry.
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 impedance is high, operations may become unstable due to noise and/or phase lag depending on output
current. Please keep the resistance low between 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.
■
NOTES ON USE
相關(guān)PDF資料
PDF描述
XC6211E09BDL High Speed LDO Regulators, Low ESR Cap. Compatible, ON/OFF Switch
XC6211E09BDR High Speed LDO Regulators, Low ESR Cap. Compatible, ON/OFF Switch
XC6211E09BML High Speed LDO Regulators, Low ESR Cap. Compatible, ON/OFF Switch
XC6211E09BMR High Speed LDO Regulators, Low ESR Cap. Compatible, ON/OFF Switch
XC6211E09BPL High Speed LDO Regulators, Low ESR Cap. Compatible, ON/OFF Switch
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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XC6214P182PR 制造商:Torex Semiconductor LTD 功能描述:IC LDO 500MA 1.8V OUTPUT SOT89 制造商:Torex Semiconductor LTD 功能描述:IC, LDO, 500MA, 1.8V OUTPUT, SOT89
XC6214P252PR 制造商:Torex Semiconductor LTD 功能描述:IC LDO 500MA 2.5V OUTPUT SOT89
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