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參數資料
| 型號： | MAX660 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | CMOS Monolithic Voltage Converter |
| 中文描述： | CMOS單片電壓變換器 |
| 文件頁數： | 8/11頁 |
| 文件大?。?/td> | 259K |
| 代理商： | MAX660 |
Other Applications
(Continued)
A three-stage cascade circuit shown in Figure 7 generates 3V
in
, from V
in
.
Cascading is also possible when devices are operating in doubling mode. In Figure 8 two devices are cascaded to generate 3V
in
.
An example of using the circuit in Figure 7 or Figure 8 is generating +15V or 15V from a +5V input.
Note that the number of n is practically limited since the increasing of n significantly reduces the efficiency and increases the out-
put resistance and output voltage ripple.
REGULATING V
out
It is possible to regulate the output of the MAX660 by use of a low dropout regulator (such as LP2951). The whole converter is
depicted in Figure 9 This converter can give a regulated output from 1.5V to 5.5V by choosing the proper resistor ratio:
where V
ref
= 1.235V.
DS100898-8
FIGURE 6. Increasing Output Voltage by Cascading Devices
DS100898-9
FIGURE 7. Generating 3V
in
from +V
in
DS100898-10
FIGURE 8. Generating +3V
in
from +V
in
M
www.national.com
8
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| MAX660CPA | CMOS Monolithic Voltage Converter |
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| MAX660MJA | Oscillator; Frequency:12.5MHz; Frequency Tolerance:+/-100ppm; Load Capacitance:50pF; Supply Voltage:5V; Crystal Terminals:Surface Mount (SMD, SMT); Leaded Process Compatible:Yes; Mounting Type:Surface Mount RoHS Compliant: Yes |
相關代理商/技術參數 |
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|---|---|
| MAX66000E-000AA+ | 功能描述:RFID應答器 RFID ISO CARD 14443 ROM ID LF RoHS:否 制造商:Murata 存儲容量:512 bit 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| MAX66000K-000AA+ | 功能描述:RFID應答器 RFID 14443 ROM ID LF TSTD RoHS:否 制造商:Murata 存儲容量:512 bit 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| MAX66000K-00AA+ | 制造商:Maxim Integrated Products 功能描述:ISO/IEC 14443 TYPE B-COMPLIANT 64-BIT, UID FOB - Rail/Tube |
| MAX66020K-000AA+ | 功能描述:RFID應答器 ISO/IEC 14443 Type B Comp 1Kb Mem Fob RoHS:否 制造商:Murata 存儲容量:512 bit 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| MAX66020K-00AA+ | 制造商:Maxim Integrated Products 功能描述:ISO/IEC 14443 TYPE B-COMPLIANT 1KB MEMORY FOB - Rail/Tube |
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