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CS5171 其他数据使用手册 - ON Semiconductor（安森美）
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ON Semiconductor（安森美）
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AC- DC离线开关控制器/稳压器 AC-DC Offline Switching Controllers/Regulators
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CS5171数据手册
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DN05019/D
Rev 0 - September, 2011
Design Note – DN05019/D
200V Boost Regulator
Device Application Input
Voltage
Output
Voltage
Output
Current
Topology
CS5171 General 12V 200V 20mA
Enhanced
Boost
Circuit Description
The following solution is presented to
support a low voltage to high voltage DC to
DC boost application. The module has an
input voltage range from 3.3V to 30V. The
module provides 1 regulated output of 200V
but can be configured for different outputs.
The CS5171 is a 280 kHz/ switching
regulators with a high efficiency, 1.5 A
integrated switch. The part operates over a
wide input voltage range, from 2.7 V to 30 V.
The flexibility of the design allows the chip to
operate in most power supply configurations,
including boost, flyback, forward, inverting,
and SEPIC. The ICs utilize current mode
architecture, which allows excellent load and
line regulation, as well as a practical means
for limiting current. Combining high frequency
operation with a highly integrated regulator
circuit results in an extremely compact power
supply solution. The circuit design includes
provisions for features such as frequency
synchronization, shutdown, and feedback
controls for either positive or negative voltage
regulation.
Key Features
Wide Input Range: 2.7V to 30V
High Frequency Allows for Small
Components
Minimum External Components
Easy External Synchronization
Built-in Overcurrent Protection
Frequency Foldback
Thermal Shutdown with Hysteresis
Integrated Power Switch: 1.5A Guaranteed
Figure 1: CS5171 Demonstration Board
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