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參數(shù)資料
| 型號： | XC6601 |
| 廠商： | TOREX SEMICONDUCTOR LTD. |
| 英文描述： | Low Voltage Input LDO Voltage Regulators |
| 中文描述： | 低輸入電壓LDO穩(wěn)壓器 |
| 文件頁數(shù)： | 7/11頁 |
| 文件大小： | 257K |
| 代理商： | XC6601 |
7/11
XC6601
Series
<Voltage Regulator>
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.
V
BIAS
pin is power supply pin for output voltage control circuit, protection circuit and CE circuit. When output current increase,
the V
BIAS
pin supplies output current also. VIN pin is connected to a driver transistor and provides output current.
In order to obtain high efficient output current through low on-resistance, please take enough Vgs (=V
BIAS
– V
OUT
) of the driver
transistor. Output current triggers operation of constant current limiter and foldback circuit, heat generation triggers operation of
thermal shutdown circuit, the driver transistor circuit is forced OFF when V
BIAS
or V
IN
voltage goes lower than U.V.L.O. voltage.
Further, the IC's internal circuitry can be shutdown via the CE pin's signal.
XC6601A series
<
Low ESR Capacitor
>
With the XC6601 series, a stable output voltage is achievable even if used with low ESR capacitors, as a phase compensation
circuit is built-in. The output capacitor (C
L
) should be connected as close to V
OUT
pin and V
SS
pin to obtain stable phase
compensation. Values required for the phase compensation are as the table below.
For a stable power input, please connect an bias capacitor (C
BIAS
) of 1.0
please connect an input capacitor (C
IN
) of 1.0
F between the V
IN
pin and the V
SS
pin. In order to ensure the stable phase
compensation while avoiding run-out of values, please use the capacitor (C
BIAS
, C
IN
, C
L
) which does not depend on bias or
temperature too much. The table below shows recommended values of C
BIAS
, C
IN
, C
L
.
F between the V
BIAS
pin and the V
SS
pin. Also,
Recommended Values of C
BIAS,
C
IN,
C
L
BIAS CAPACITOR
C
BIAS
C
BIAS
=1.0μF
INPUT CAPACITOR
C
IN
C
IN
=1.0μF
OUTPUT CAPACITOR
C
L
C
L
=4.7μF
SETTING VOLTAGE
0.7V～1.8V
OPERATIONAL EXPLANATION
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| XC6601_1 | 制造商:TOREX 制造商全稱:Torex Semiconductor 功能描述:Low Voltage Input LDO Voltage Regulators |
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