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MAX8213BCSE+T 开发手册 - Maxim Integrated（美信）
制造商:
Maxim Integrated（美信）
分类:
电源监控芯片
封装:
SOIC-16
描述:
监控电路 Quint uPower Voltage Monitor
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MAX8213BCSE+T数据手册
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Maxim > Design Support > Technical Documents > Application Notes > Microprocessor Supervisor Circuits > APP 500
Keywords: reset circuit, oscillator circuit, comparator, step-up, boost converter, voltage detector, POR
APPLICATION NOTE 500
5-Comparator IC Provides 3V-to-5V Regulator and
µP Reset
Sep 30, 2002
Abstract: Using a multi-comparator circuit, a simple boost converter can be constructed to provide a
higher output voltage as well as a reset circuit. This application shows how a 3V supply can produce an
additional 5V output as well as a power-on-reset (POR) circuit. The application uses the voltage detector
to produce an oscillator circuit that controls the external boost circuit and provide a regulated 5V output.
Three-volt systems are becoming common, but they often include at least a few 5V components. A
single five-comparator IC can produce the required 5V (from 3V) while generating power-on reset signals
for the system microprocessor as well (Figure 1).
More detailed image (PDF, 480kB)
Figure 1. This IC and related components boost the 3V supply to 5V, issue "5V ready" signals, and issue
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