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參數(shù)資料
| 型號(hào)： | MAX624 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Dual-Output, 1MHz DC-DC Boost Converter for PCMCIA Applications(升壓型，輸出電壓5V/12V/可調(diào),輸出電流200mA的DC-DC變換器) |
| 中文描述： | 雙輸出，1MHz的DC - DC升壓轉(zhuǎn)換器應(yīng)用為PCMCIA（升壓型，輸出電壓5V/12V /可調(diào)，輸出電流200毫安的直流變換器） |
| 文件頁(yè)數(shù)： | 3/16頁(yè) |
| 文件大小： | 215K |
| 代理商： | MAX624 |
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M
Dual-Output, 1MHz DC-DC Boost Converter
for PCMCIA Applic ations
_______________________________________________________________________________________
3
Note 1:
Line Regulation is tested by measuring the reference line regulation, since both converters are supplied from the regulated
5V output.
Note 2:
Switch off-time ratio guarantees that the inductor will go into continuous conduction. The ratio is tested for two cases for the
main SMPS:
1) V
IN
= 5V, FB5 = 5V
SR5 = 0.120 x t
OFF
/ t
ON
2) V
IN
= 3V, FB5 = 5V
SR5 = 0.867 x t
OFF
/ t
ON
Note that the constants are calculated from: (FB5 + 0.6V - V
IN
) / V
IN
Note 3:
Switch off-time ratio guarantees that the inductor will go into continuous conduction. The ratio is tested for two cases for the
auxiliary SMPS:
1) V
IN
= 5V, VA = 7V
SRA = 0.520 x t
OFF
/ t
ON
2) V
IN
= 3V, VA = 11V
SRA = 2.867 x t
OFF
/ t
ON
Note that the constants are calculated from: (VA + 0.6V - V
IN
) / V
IN
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= 3V, GND = PGND = 0V, SHDN = V
IN
, EXT open, FBA feedback resistors set for 12V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
SS5, SSA; SHDN = ONA = 3V
SS5, SSA; SHDN = ONA = 0V
Rising V
IN
edge, typical hysteresis = 1%
V
IN
= 2V, I
SINK
= 0.1mA
V
IN
= 5.5V, I
SOURCE
= 0μA
RESET, I
SINK
= 2mA, V
IN
= 2.6V
RESET, I
SINK
= 1mA, V
IN
= 3V
SHDN, ONA
SHDN, ONA
V
IN
= 2.9V, I
SOURCE
= 2μA
SHDN, ONA
CONDITIONS
V
2
Input High Voltage
Input Leakage
V
1
EXT Output Voltage in Reset
11.8
V
6.5
EXT Output Voltage
ms
2
10
RESET Timeout
k
14
20
50
28
300
Source Resistance
Discharge Resistance
LOGIC INPUTS AND OUTPUTS
V
2.7
2.9
RESET Trip Level
V
V
0.4
Output Low Voltage
Output High Voltage
V
0.8
Input Low Voltage
μA
±1
UNITS
MIN
TYP
MAX
PARAMETER
V
IN
- 0.8
SOFT-START CONTROL
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX6241 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Low-Noise, Precision, +2.5V/+4.096V/+5V Voltage References |
| MAX6241ACPA | 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| MAX6241ACPA+ | 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 2.5V/+4.096V/5V Voltage Ref RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| MAX6241ACSA | 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| MAX6241ACSA+ | 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 2.5V/+4.096V/5V Voltage Ref RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
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