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參數(shù)資料
| 型號： | XC6207B502PL |
| 廠商： | TOREX SEMICONDUCTOR LTD. |
| 英文描述： | CMOS Low Power Consumption |
| 中文描述： | CMOS低功耗 |
| 文件頁數(shù)： | 11/30頁 |
| 文件大?。?/td> | 723K |
| 代理商： | XC6207B502PL |
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11
Data Sheet
ud200527
XC6207
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 & stabilized by a system of negative feedback. The current limit circuit and short
protect circuit operate in relation to the level of output current. The GO function monitors the output current and switches a
supply current to two values according to the level of output current. Further, the IC's internal circuitry can be shutdown via
the CE pin's signal.
<Green Operation>
XC6207 series can be set as a fixed high-speed mode or a green operation (GO) mode via a signal to the green operation
(GO) pin. Under the condition that the output current becomes IGOR or less, the IC operates in the fixed high-speed mode
when the GO pin is at high level and the IC operates in the power save (PS) mode when the GO pin is at low level. The
GO mode enables the IC to switch automatically the supply current to the high speed (HS) mode or the power save (PS)
mode according to the level of output current. While having both high-speed operation and low supply current state, the
XC6207 series can acquire high efficiency. At the HS/PS automatic switching mode (GO mode), the switching point of the
HS mode and the PS mode is being fixed inside the IC. When the output current becomes IGOR 0.3mA (TYP.) or below,
the mode changes automatically to the PS mode after the delay time of hundreds
μ
sec(s), and it can reduce supply current
in light load. For applications, most of portable equipment control the system current, which is the output current to the IC,
and control the supply current according to the system condition. Furthermore, the high-speed operation might be
required. In such a case, at the automatic switching mode (GO mode), when the output current becomes IGO or more,
the mode will automatically switch to the HS mode. In the HS mode, the response of the output voltage during the output
current fluctuation is better than the PS mode. Automatic switching PS mode to HS mode causes the switching delay
time of tens of
μ
sec(s), the output voltage drops more than in the fixed HS mode. If the GO pin voltage is at high level {tens
of
μ
sec(s) before the output current fluctuation occurs} and the IC is used in the HS mode, the output current fluctuation
will be suppressed to as low as the fixed HS mode. (cf. the following item: Load Transient Response by Switching Mode
with GO pin.)
The output current at the HS/PS mode should be adjusted to 2.0mA or more / 0.3mA or less respectively when you use the
IC in the HS/PS automatic switching mode (GO mode).
It is suggested that you use this IC with either a V
IN
voltage or a V
SS
voltage input at the GO pin. If this IC is used with the
correct specifications for the GO pin, the IC will operate normally. However, supply current may increase as a result of
through current in the IC's internal circuitry when medium voltage is input.
-
+
VIN
VSS
VOUT
R1
R2
CE
GO
{
each circuit
ON/OFF
Control
Error
Amp
Current
Limit
Green
Operation
Voltage
Reference
CE /CE
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| XC6209B182MR-G | 功能描述:IC REG LDO 1.8V .15A SOT-25 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標準包裝:50 系列:- 穩(wěn)壓器拓撲結(jié)構(gòu):正，固定式 輸出電壓:24V 輸入電壓:最高 40 V 電壓 - 壓降（標準）:2V @ 350mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:500mA 電流 - 限制（最?。?- 工作溫度:-40°C ~ 125°C 安裝類型:通孔 封裝/外殼:TO-220-3 供應(yīng)商設(shè)備封裝:TO-220AB 包裝:管件 其它名稱:MC78M24BTG-NDMC78M24BTGOS |
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